Door and window stamping device

Abstract

The invention relates to a door and window stamping device, and belongs to the field of display devices. The device comprises a lower die mechanism and an upper die mechanism. The lower die mechanism comprises a first shell provided with a high-pressure cavity and a low-pressure cavity. The high-pressure cavity is communicated with the low-pressure cavity when the first body is at the first position, and is separated from the low-pressure cavity when the first body is at the second position; the first elastic piece is used for positioning the first body at the first position; one end of the punching assembly is located in the first body and divides the interior of the first body into a first cavity and a second cavity, the second cavity communicates with the high-pressure cavity, the first cavity communicates with the low-pressure cavity, and when the first body is located at the first position and the punching assembly is located at the fourth position, the punching assembly is flush with the bottom wall of the punching groove; when the first body is located at the second position and the punching assembly is located at the third position, the punching assembly protrudes out of the bottom wall of the punching groove; the second elastic piece drives the punching assembly to compress the third cavity. According to the device, stamping and punching of door and window frames can be completed in the same working procedure, so that the door and window machining precision is higher.

Description

Technical Field

[0001] The invention belongs to the field of stamping devices, and in particular relates to a door and window stamping device. Background Art

[0002] Stamping is a metal processing process that uses dies and presses to apply pressure to metal sheets to cause them to undergo plastic deformation or separation, thereby obtaining parts of the desired shape and size. Stamping technology is widely used in industries such as automobiles, home appliances, electronics, and construction.

[0003] In order to facilitate installation during the manufacturing process of doors and windows, it is necessary to punch holes in the doors and windows. However, in the prior art, the door and window punching device generally completes the punching and punching of the door and window frames in sequence, that is, the punching and punching require different molds for processing. Therefore, multiple punching machines are required, or the molds need to be replaced during the processing. As a result, the doors and windows need to be positioned multiple times during the molding process, thereby reducing the processing accuracy of the doors and windows. Summary of the invention

[0004] In view of the above problems, an embodiment of the present application provides a door and window stamping device, which can complete the stamping and punching of door and window frames in the same process, so that the door and window processing accuracy is higher.

[0005] The embodiment of the present application provides a door and window punching device, a door and window punching device, including a lower die mechanism and an upper die mechanism. The lower die mechanism has a punching groove; the upper die mechanism is used to apply external force to the plate so that the plate fits the punching groove; wherein the lower die mechanism includes a first shell, a first body, a first elastic member and a punching assembly and a second elastic member; the first shell has a high-pressure chamber and a low-pressure chamber; the first body is movably arranged in the first shell, the first body has a first position and a second position, when in the first position, the high-pressure chamber and the low-pressure chamber are connected, when in the second position, the first body separates the high-pressure chamber and the low-pressure chamber, and compresses the volume of the high-pressure chamber; the first elastic member is used to provide elastic force to the first body so that the first body is located in the first position, and in the process of the upper die mechanism applying external force to the plate, the The first body moves to the second position; one end of the punching assembly is located in the first body to divide the interior of the first body into a first cavity and a second cavity, the second cavity is connected to the high-pressure cavity, and the first cavity is connected to the low-pressure cavity. The punching assembly has a third position and a fourth position. When the first body is located in the first position and the punching assembly is located in the fourth position, the other end of the punching assembly is flush with the bottom wall of the punching groove. When the first body is located in the second position and the punching assembly is located in the third position, the other end of the punching assembly protrudes from the bottom wall of the punching groove; the second elastic member is used to provide elastic force to the punching assembly so that the punching assembly is located in the fourth position.

[0006] Specifically, when not working, due to the force of the first elastic member, the first body is in the first position, at which time the high-pressure chamber and the low-pressure chamber are connected to each other, so that the pressures of the first cavity and the second cavity are the same, and the punching assembly is located in the fourth position under the action of the second elastic member, at which time the bottom wall of the punching groove is flush with the punching assembly.

[0007] During the stamping process, the plate is first placed between the lower die mechanism and the upper die mechanism, and then pressure is applied to the plate through the upper die mechanism so that the plate is pressed into the stamping groove, so that the plate is stamped and formed. At this time, the first body is driven to move to the second position, thereby isolating the low-pressure chamber from the high-pressure chamber, and compressing the volume of the high-pressure chamber so that the pressure in the high-pressure chamber gradually increases, and the pressure of the second cavity gradually increases, so that the punching assembly moves to the third position, and the other end of the punching assembly protrudes from the bottom wall of the stamping groove to punch the door and window frames.

[0008] In some embodiments, the punching assembly includes a first cylinder body and a punching rod; the first cylinder body is arranged in the first body to divide the interior of the first body into the second cavity and the first cavity, and the second elastic member abuts against the first cylinder body; one end of the punching rod is arranged in the first cylinder body to divide the interior of the first cylinder body into a third cavity and a fourth cavity, the first body has a first punching hole connecting the punching groove and the first cavity, the other end of the punching rod passes through the third cavity and the first cavity in sequence and is located in the first punching hole, when the first cylinder body is in the fourth position, the third cavity is connected to the high-pressure cavity, and the fourth cavity is connected to the low-pressure cavity; when the first cylinder body is in the third position, the fourth cavity is connected to the high-pressure cavity, and the third cavity is connected to the low-pressure cavity.

[0009] Specifically, when not in operation, the first body is located at the first position, and the punching assembly is located at the fourth position under the action of the second elastic member, at which time the third cavity is connected to the high-pressure cavity, and the fourth cavity is connected to the low-pressure cavity. However, since the high-pressure cavity and the low-pressure cavity are not isolated at this time, the pressures are the same, and the punching rod does not move.

[0010] During the stamping process, the first body is located in the second position and the punching assembly is located in the third position. At this time, the fourth cavity is connected to the high-pressure cavity, and the third cavity is connected to the low-pressure cavity, thereby pushing one end of the stamping rod to move in the direction of extruding the third cavity so that the stamping rod can stamp the plate.

[0011] In the above technical solution, the punching rod is designed so that the punching assembly can further move toward the bottom wall of the protruding punching groove, thereby facilitating the punching of the plate.

[0012] In some embodiments, the punching assembly also includes a third elastic member, which is used to provide elastic force to the punching rod to drive the punching rod to compress the third cavity. During the movement of the first cylinder from the fourth position to the third position, the third cavity is connected to the high-pressure cavity, and the fourth cavity is connected to the low-pressure cavity.

[0013] Specifically, when not in operation, the first body is located at the first position, and the punching assembly is located at the fourth position under the action of the second elastic member, at which time the third cavity is connected to the high-pressure cavity, and the fourth cavity is connected to the low-pressure cavity. However, since the high-pressure cavity and the low-pressure cavity are not isolated at this time, the pressures are the same, so that the third elastic member can drive the punching rod to drive the punching rod to compress the third cavity. At this time, the length of the punching rod outside the first cylinder is the largest, and the punching rod is flush with the bottom wall of the punching groove.

[0014] During the stamping process, the first body moves to the second position and drives the first cylinder body to move through the second elastic member to separate the high-pressure chamber and the low-pressure chamber and compress the high-pressure chamber, thereby increasing the pressure in the second chamber. When the pressure difference between the second chamber and the first chamber is less than the preload force of the second elastic member, the first cylinder body is stationary relative to the first body and is still in the third position. At this time, the difference between the pressure of the third chamber and the pressure of the fourth chamber is less than the elastic force of the third elastic member, thereby making the stamping rod stationary relative to the first cylinder body, that is, during this period, the first body, the first cylinder body and the stamping rod move together. Then, when the pressure difference between the pressure in the second cavity and the pressure in the first cavity is greater than the preload force of the second elastic member, the first cylinder moves from the fourth position to the third position relative to the first body, at which time the third cavity is connected to the high-pressure cavity, and the fourth cavity is connected to the low-pressure cavity, that is, as the first body continuously compresses the high-pressure cavity, the pressure difference between the third cavity and the fourth cavity gradually increases, thereby causing the punching rod to overcome the elastic force of the third elastic member and move in the direction of compressing the fourth cavity, so that when the first cylinder moves relative to the first body, the punching rod can be stationary relative to the first body to block the first punching hole and ensure the stamping surface quality near the first punching hole during stamping. During this period, the stamping of the sheet is completed. Then, the first cylinder moves completely to the third position, the fourth cavity is connected to the high-pressure cavity, and the third cavity is connected to the low-pressure cavity. At this time, the difference between the pressure of the fourth cavity and the pressure of the third cavity and the elastic force of the third elastic member act together on the punching rod, so that the punching rod can quickly compress the third cavity and punch the sheet.

[0015] In the above technical solution, the punching rod can be stationary relative to the first body when the first cylinder moves to the third position, thereby improving the stamping surface quality near the first stamping hole during stamping.

[0016] In some embodiments, the first cylinder body has a first flow channel and a second flow channel connected to the fourth cavity, and a third flow channel and a fourth flow channel connected to the third cavity, the first body has a first through hole and a fourth through hole connected to the low-pressure cavity and the interior of the first body, and has a second through hole and a third through hole connected to the high-pressure cavity and the interior of the first body, when the first cylinder body is in the third position, the second flow channel is connected to the second through hole, and the fourth flow channel is connected to the fourth through hole; when the first cylinder body is in the fourth position, the first flow channel is connected to the first through hole, and the third flow channel is connected to the third through hole.

[0017] In the above technical solution, the structure of connecting each cavity by means of flow channels and through holes is simple and easy to implement.

[0018] In some embodiments, the first through hole is a strip-shaped hole, and an extension direction of the first through hole is parallel to a movement direction of the first cylinder; the third through hole is a strip-shaped hole, and an extension direction of the third through hole is parallel to a movement direction of the first cylinder.

[0019] In the above technical solution, the strip holes are used so that when the first cylinder moves from the fourth position to the third position, the third cavity is connected to the high-pressure cavity and the fourth cavity is connected to the low-pressure cavity. The structure is simple and easy to implement.

[0020] In some embodiments, the upper die mechanism has a second punching hole corresponding to the first punching hole, and the second punching hole cooperates with the punching rod to punch the plate.

[0021] In the above technical solution, the second punching hole cooperates with the punching rod to punch the plate, thereby ensuring the neatness of the punching edge.

[0022] In some embodiments, the lower mold mechanism also includes two bending parts, which are rotatably arranged on the outer surface of the first shell. When the first body moves toward the second position, it abuts against one end of the two bending parts respectively to drive the other ends of the two bending parts to rotate in a direction close to each other to form the stamping groove.

[0023] In the above technical solution, during the process of the first body moving toward the second position, it abuts against one end of the two bending parts respectively to drive the other ends of the two bending parts to rotate in a direction close to each other to form the stamping groove. After the stamping is completed, when the first elastic part drives the first body to reset, it is convenient for the operator to open the stamping groove and remove the door and window frames.

[0024] Compared with the prior art, the present invention has the following beneficial effects: The stamping and punching of door and window frames can be completed in the same process without changing the workstation for repositioning, thus reducing the gap error caused by repositioning and making the door and window processing more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the structure of a door and window punching device provided in an embodiment of the present invention; Figure 2 A cross-sectional view of a door and window punching device provided in an embodiment of the present invention; Figure 3 A cross-sectional view of a punching assembly located at a fourth position provided by an embodiment of the present invention; Figure 4 A cross-sectional view of a punching assembly located at a third position provided by an embodiment of the present invention; Figure 5 for Figure 3 A partial enlarged view of the part A in the middle; Figure 6 for Figure 3 A partial enlarged view of B in the middle; Figure 7 for Figure 3 A partial enlarged view of the C in the middle; Figure 8 for Figure 3 A partial enlarged view of D in the middle; Fig. 9 for Figure 4 A partial enlarged view of E in the middle; Fig.10 for Figure 4 A partial enlarged view of F in the middle; Fig.11 for Figure 4 A partial enlarged view of the G in the middle; Fig.12 for Figure 4 A partial enlarged view of the H in the middle; Fig.13 It is a schematic diagram of a door and window frame in the prior art.

[0027] In the figure: 1000-door and window stamping device; 10-first shell; 11-low-pressure chamber; 12-high-pressure chamber; 20-first body; 201-first cavity; 202-second cavity; 203-first through hole; 204-second through hole; 205-third through hole; 206-fourth through hole; 30-first elastic member; 40-punching assembly; 41-first cylinder; 411-third cavity; 412-fourth cavity; 413-first flow channel; 414-second flow channel; 415-third flow channel; 416-fourth flow channel; 42-punching rod; 43-third elastic member; 50-second elastic member; 60-bending member; 200-upper mold mechanism; 211-second punching hole; 300-door and window frame. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0029] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Stamping is a metal processing process that uses dies and presses to apply pressure to metal sheets to cause them to undergo plastic deformation or separation, thereby obtaining parts of the desired shape and size. Stamping technology is widely used in industries such as automobiles, home appliances, electronics, and construction.

[0033] Reference Fig.13In order to facilitate installation during the manufacturing process of doors and windows, the door and window frame 300 needs to be punched. However, in the prior art, the door and window punching device 1000 generally completes the punching and punching of the door and window frame 300 in sequence, that is, the punching and punching require different molds for processing. Therefore, multiple punching machines are required, or the molds need to be replaced during the processing. As a result, multiple positioning is required during the door and window molding process, thereby reducing the processing accuracy of the door and window.

[0034] In order to solve the above technical problems, refer to Figure 1-Figure 12 The embodiment of the present application provides a door and window punching device 1000, a door and window punching device 1000, including a lower die mechanism and an upper die mechanism 200. The lower die mechanism has a punching groove; the upper die mechanism 200 is used to apply an external force to the plate so that the plate fits with the punching groove; wherein the lower die mechanism includes a first shell 10, a first body 20, a first elastic member 30 and a punching assembly 40 and a second elastic member 50; the first shell 10 has a high-pressure chamber 12 and a low-pressure chamber 11; the first body 20 is movably arranged in the first shell 10, and the first body 20 has a first position and a second position. In the first position, the high-pressure chamber 12 and the low-pressure chamber 11 are connected. In the second position, the first body 20 separates the high-pressure chamber 12 and the low-pressure chamber 11 and compresses the volume of the high-pressure chamber 12; the first elastic member 30 is used to provide an elastic force to the first body 20 so that the first body 20 is located in the first position, and the upper die mechanism 200 applies an external force to the plate. During the process of applying force, the first body 20 moves to the second position; one end of the punching assembly 40 is located in the first body 20 to divide the interior of the first body 20 into a first cavity 201 and a second cavity 202, the second cavity 202 is connected to the high-pressure cavity 12, the first cavity 201 is connected to the low-pressure cavity 11, the punching assembly 40 has a third position and a fourth position, when the first body 20 is located in the first position and the punching assembly 40 is located in the fourth position, the other end of the punching assembly 40 is flush with the bottom wall of the punching groove, when the first body 20 is located in the second position and the punching assembly 40 is located in the third position, the other end of the punching assembly 40 protrudes from the bottom wall of the punching groove; the second elastic member 50 is used to provide elastic force to the punching assembly 40 so that the punching assembly 40 is located in the fourth position.

[0035] It can be understood that the lower mold mechanism and the upper mold mechanism 200 can be assembled on a frame.

[0036] Exemplarily, the elastic members mentioned in this application are all springs.

[0037] The first elastic member 30 is disposed in the first shell 10 , and opposite ends of the first elastic member 30 abut against the outer wall of the first body 20 and the inner wall of the first shell 10 respectively.

[0038] The second elastic member 50 is disposed in the first cavity 201 , and opposite ends of the second elastic member 50 are respectively in contact with the inner wall of the first body 20 and the outer wall of the punching assembly 40 .

[0039] The upper die mechanism can be a hydraulic press that drives the punching block to move.

[0040] Please refer to Figure 2 The first position and the second position are positions of the first body 20 relative to the first shell 10, the first body 20 moves relative to the first shell 10 along the N1 direction to be converted from the first position to the second position, and the first body 20 moves relative to the first shell 10 along the N2 direction to be converted from the second position to the first position; the third position and the fourth position are positions of the punching assembly 40 relative to the first body 20, the punching assembly 40 moves relative to the first body 20 along the N1 direction to be converted from the third position to the fourth position, and the punching assembly 40 moves relative to the first body 20 along the N2 direction to be converted from the fourth position to the third position.

[0041] The low-pressure chamber 11 is located on one side of the first body 20 that is perpendicular to the moving direction of the first body 20 , so that the low-pressure chamber 11 is not squeezed when the first body 20 moves along the N1 direction and the N2 direction.

[0042] In some embodiments, a baffle is provided in the first shell 10, and the baffle extends in a direction perpendicular to the movement direction of the first body 20 to separate the interior of the first shell 10 into a low-pressure chamber 11 and a high-pressure chamber 12, and the low-pressure chamber 11 and the high-pressure chamber 12 are connected through an opening. The first body 20 moves along the N1 direction to block the above-mentioned opening to isolate the low-pressure chamber 11 and the high-pressure chamber 12.

[0043] It is understandable that a limiting structure may be provided in the first body 20 to limit the punching assembly 40 from moving in a limited position. The limiting structure may be a stopper connected to the inner wall of the first body 20.

[0044] It can be understood that hydraulic oil or air can be contained in the first housing 10 .

[0045] Specifically, when not working, due to the force of the first elastic member 30, the first body 20 is in the first position, at which time the high-pressure chamber 12 and the low-pressure chamber 11 are connected to each other, so that the pressures of the first cavity 201 and the second cavity 202 are the same, and the punching assembly 40 is located in the fourth position under the action of the second elastic member 50, and the bottom wall of the punching groove is flush with the punching assembly 40.

[0046] During the stamping process, the plate is first placed between the lower mold mechanism and the upper mold mechanism 200, and then pressure is applied to the plate through the upper mold mechanism 200 so that the plate is pressed into the stamping groove, so that the plate is stamped and formed. At this time, the first body 20 is driven to move to the second position along the N1 direction, thereby separating the low-pressure chamber 11 from the high-pressure chamber 12, and compressing the volume of the high-pressure chamber 12 so that the pressure in the high-pressure chamber 12 gradually increases, so that the pressure of the second cavity 202 gradually increases, so that the punching assembly 40 moves to the third position along the N2 direction to overcome the preload force of the second elastic member 50, so that the other end of the punching assembly 40 protrudes from the bottom wall of the stamping groove to punch the door and window frame 300.

[0047] In the present technical solution, the door and window stamping device 1000 can complete the stamping and punching of the door and window frame 300 in the same process, so that the door and window processing accuracy is higher.

[0048] According to some embodiments of the present application, the punching assembly 40 includes a first cylinder body 41 and a punching rod 42; the first cylinder body 41 is arranged in the first body 20 to divide the interior of the first body 20 into a second cavity 202 and a first cavity 201, and the second elastic member 50 abuts against the first cylinder body 41; one end of the punching rod 42 is arranged in the first cylinder body 41 to divide the interior of the first cylinder body 41 into a third cavity 411 and a fourth cavity 412, the first body 20 has a first punching hole connecting the punching groove and the first cavity 201, the other end of the punching rod 42 passes through the third cavity 411 and the first cavity 201 in sequence and is located in the first punching hole, when the first cylinder body 41 is in the fourth position, the third cavity 411 is connected to the high-pressure cavity 12, and the fourth cavity 412 is connected to the low-pressure cavity 11; when the first cylinder body 41 is in the third position, the fourth cavity 412 is connected to the high-pressure cavity 12, and the third cavity 411 is connected to the low-pressure cavity 11.

[0049] It is understandable that a limiting structure may be provided in the first cylinder body 41 to limit the punching rod 42 from moving in a limited position. The limiting structure may be a stopper connected to the inner wall of the first cylinder body 41 .

[0050] Specifically, when not in operation, the first body 20 is located at the first position, and the punching assembly 40 is located at the fourth position under the action of the second elastic member 50, at which time the third cavity 411 is connected to the high-pressure cavity 12, and the fourth cavity 412 is connected to the low-pressure cavity 11. However, since the high-pressure cavity 12 and the low-pressure cavity 11 are not isolated at this time, the pressures are the same, and the punching rod 42 does not move.

[0051] During the stamping process, the first body 20 is located in the second position and the punching assembly 40 is located in the third position. At this time, the fourth cavity 412 is connected to the high-pressure cavity 12, and the third cavity 411 is connected to the low-pressure cavity 11, thereby pushing one end of the stamping rod to squeeze the third cavity 411 along the N2 direction, so that the stamping rod can stamp the plate.

[0052] In the present technical solution, the design of the punching rod enables the punching assembly to further move toward the bottom wall of the protruding punching groove, thereby facilitating the punching of the plate.

[0053] According to some embodiments of the present application, the punching assembly 40 also includes a third elastic member 43, which is used to provide elastic force to the punching rod 42 to drive the punching rod 42 to compress the third cavity 411. During the movement of the first cylinder 41 from the fourth position to the third position, the third cavity 411 is connected to the high-pressure cavity 12, and the fourth cavity 412 is connected to the low-pressure cavity 11.

[0054] The third elastic member 43 is disposed in the fourth cavity 412 , and opposite ends of the third elastic member 43 abut against the punching rod 42 and the inner wall of the fourth cavity 412 , respectively.

[0055] Specifically, when not in operation, the first body 20 is located at the first position, and the punching assembly 40 is located at the fourth position under the action of the second elastic member 50. At this time, the third cavity 411 is connected to the high-pressure cavity 12, and the fourth cavity 412 is connected to the low-pressure cavity 11. However, since the high-pressure cavity 12 and the low-pressure cavity 11 are not isolated at this time, the pressures are the same, so that the third elastic member 43 can drive the punching rod to drive the punching rod 42 to compress the third cavity 411. At this time, the length of the punching rod outside the first cylinder 41 is the largest, and the punching rod is flush with the bottom wall of the punching groove.

[0056] By adjusting the elastic coefficients and preload of the second elastic member 50 and the third elastic member 43, during the stamping process, the first body 20 moves toward the second position along the N1 direction, and drives the first cylinder 41 to move through the second elastic member 50 to separate the high-pressure chamber 12 and the low-pressure chamber 11, and compress the high-pressure chamber 12, thereby increasing the pressure in the second chamber 202. When the pressure difference between the second chamber 202 and the first chamber 201 is less than the preload of the second elastic member 50, the first cylinder 41 is stationary relative to the first body 20 and is still in the third position, and at this time, the difference between the pressure of the third chamber 411 and the pressure of the fourth chamber 412 is less than the elastic force of the third elastic member 43, thereby making the stamping rod stationary relative to the first cylinder 41, that is, during this period, the first body 20, the first cylinder 41 and the stamping rod move together. Then, when the pressure difference between the pressure in the second cavity 202 and the pressure in the first cavity 201 is greater than the preload force of the second elastic member 50, the first cylinder 41 moves from the fourth position to the third position relative to the first body 20 along the N2 direction, at which time the third cavity 411 is connected to the high-pressure cavity 12, and the fourth cavity 412 is connected to the low-pressure cavity 11, that is, as the first body 20 continuously compresses the high-pressure cavity 12, the pressure difference between the third cavity 411 and the fourth cavity 412 gradually increases, thereby causing the punching rod to overcome the elastic force of the third elastic member 43 and move in the N1 direction, so that when the first cylinder 41 moves relative to the first body 20, the punching rod can be stationary relative to the first body 20 to block the first punching hole and ensure the punching surface quality near the first punching hole during punching. The punching of the sheet is completed during this period. Then the first cylinder 41 moves completely to the third position, the fourth cavity 412 is connected to the high-pressure cavity 12, and the third cavity 411 is connected to the low-pressure cavity 11. At this time, the difference between the pressure of the fourth cavity 412 and the pressure of the third cavity 411 and the elastic force of the third elastic member 43 act together on the punching rod 42, so that the punching rod 42 can move along the N2 direction, quickly compress the third cavity 411, and punch the plate.

[0057] In the present technical solution, the punching rod 42 can be stationary relative to the first body 20 when the first cylinder 41 moves to the third position, thereby improving the stamping surface quality near the first stamping hole during stamping.

[0058] According to some embodiments of the present application, the first cylinder body 41 has a first flow channel 413 and a second flow channel 414 connected to the fourth cavity 412, and a third flow channel 415 and a fourth flow channel 416 connected to the third cavity 411, and the first body 20 has a first through hole 203 and a fourth through hole 206 connected to the low-pressure chamber 11 and the interior of the first body 20, and has a second through hole 204 and a third through hole 205 connected to the high-pressure chamber 12 and the interior of the first body 20. When the first cylinder body 41 is in the third position, the second flow channel 414 is connected to the second through hole 204, and the fourth flow channel 416 is connected to the fourth through hole 206; when the first cylinder body 41 is in the fourth position, the first flow channel 413 is connected to the first through hole 203, and the third flow channel 415 is connected to the third through hole 205.

[0059] It can be understood that when the first cylinder body 41 is in the third position, the cylinder wall of the first cylinder body 41 blocks the first through hole 203 and the third through hole 205 , and when the first cylinder body 41 is in the fourth position, the cylinder wall of the first cylinder body 41 blocks the second through hole 204 and the fourth through hole 206 .

[0060] In the technical solution, the structure of connecting each cavity by means of flow channels and through holes is simple and easy to implement.

[0061] According to some embodiments of the present application, the first through hole 203 is a bar-shaped hole, and the extension direction of the first through hole 203 is parallel to the movement direction of the first cylinder body 41; the third through hole 205 is a bar-shaped hole, and the extension direction of the third through hole 205 is parallel to the movement direction of the first cylinder body 41.

[0062] In this technical solution, the strip holes are used to connect the third cavity 411 with the high-pressure cavity 12 and the fourth cavity 412 with the low-pressure cavity 11 during the movement of the first cylinder 41 from the fourth position to the third position. The structure is simple and easy to implement.

[0063] According to some embodiments of the present application, the upper die mechanism 200 has a second punching hole 211 corresponding to the first punching hole, and the second punching hole 211 cooperates with the punching rod 42 to punch a hole in the plate.

[0064] In the present technical solution, the second punching hole 211 cooperates with the punching rod 42 to punch holes in the plate, thereby ensuring the neatness of the punching edges.

[0065] According to some embodiments of the present application, the lower mold mechanism also includes two bending parts 60, which are rotatably arranged on the outer surface of the first shell body 10. When the first body 20 moves toward the second position, it abuts against one end of the two bending parts 60 respectively to drive the other ends of the two bending parts 60 to rotate in a direction close to each other to form a stamping groove.

[0066] Specifically, the first body 20 moves along the N1 direction to abut against the bending member 60 to drive the other end of the bending member 60 to move along the W direction, thereby forming the stamping groove.

[0067] In the present technical solution, during the process of the first body 20 moving toward the second position, it abuts against one end of the two bending parts 60 respectively, so as to drive the other ends of the two bending parts 60 to rotate toward each other to form a stamping groove. After the stamping is completed, when the first elastic part 30 drives the first body 20 to reset, it is convenient for the operator to open the stamping groove and remove the door and window frame 300.

[0068] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0069] The above embodiments are only used to illustrate the technical solution of the present application and are not used to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A door and window punching device, characterized in that: include: A lower die mechanism having a punching slot; An upper die mechanism, used for applying an external force to the plate so that the plate fits the stamping groove; Wherein, the lower mold mechanism comprises: A first shell having a high-pressure chamber and a low-pressure chamber; A first body is movably disposed in the first shell, the first body having a first position and a second position, when in the first position, the high-pressure chamber is connected to the low-pressure chamber, and when in the second position, the first body separates the high-pressure chamber from the low-pressure chamber and compresses the volume of the high-pressure chamber; a first elastic member, used for providing an elastic force to the first body, so that the first body is located at a first position, and the first body moves toward the second position during the process in which the upper mold mechanism applies an external force to the plate; A punching assembly, one end of which is located in the first body to divide the interior of the first body into a first cavity and a second cavity, the second cavity is connected to the high-pressure cavity, and the first cavity is connected to the low-pressure cavity, the punching assembly has a third position and a fourth position, when the first body is located in the first position and the punching assembly is located in the fourth position, the other end of the punching assembly is flush with the bottom wall of the punching groove, and when the first body is located in the second position and the punching assembly is located in the third position, the other end of the punching assembly protrudes from the bottom wall of the punching groove; The second elastic member is used to provide elastic force to the punching assembly so that the punching assembly is located at a fourth position.

2. A door and window punching device according to claim 1, characterized in that: The punching assembly comprises: A first cylinder body is disposed in the first body to divide the interior of the first body into the second cavity and the first cavity, and the second elastic member abuts against the first cylinder body; A punching rod, one end of which is arranged in the first cylinder body to divide the interior of the first cylinder body into a third cavity and a fourth cavity, the first body has a first punching hole connecting the punching groove and the first cavity, the other end of the punching rod passes through the third cavity and the first cavity in sequence and is located in the first punching hole, when the first cylinder body is located in the fourth position, the third cavity is connected to the high-pressure cavity, and the fourth cavity is connected to the low-pressure cavity; when the first cylinder body is located in the third position, the fourth cavity is connected to the high-pressure cavity, and the third cavity is connected to the low-pressure cavity.

3. A door and window punching device according to claim 2, characterized in that: The punching assembly also includes: The third elastic member is used to provide elastic force to the punching rod to drive the punching rod to compress the third cavity. When the first cylinder moves from the fourth position to the third position, the third cavity is connected with the high-pressure cavity, and the fourth cavity is connected with the low-pressure cavity.

4. A door and window punching device according to claim 3, characterized in that: The first cylinder body has a first flow channel and a second flow channel connected to the fourth cavity, and a third flow channel and a fourth flow channel connected to the third cavity, the first body has a first through hole and a fourth through hole connected to the low-pressure cavity and the interior of the first body, and has a second through hole and a third through hole connected to the high-pressure cavity and the interior of the first body, when the first cylinder body is in the third position, the second flow channel is connected to the second through hole, and the fourth flow channel is connected to the fourth through hole; when the first cylinder body is in the fourth position, the first flow channel is connected to the first through hole, and the third flow channel is connected to the third through hole.

5. A door and window punching device according to claim 4, characterized in that: The first through hole is a strip-shaped hole, and the extending direction of the first through hole is parallel to the moving direction of the first cylinder; The third through hole is a strip-shaped hole, and an extending direction of the third through hole is parallel to a moving direction of the first cylinder body.

6. A door and window punching device according to claim 2, characterized in that: The upper die mechanism has a second punching hole corresponding to the first punching hole, and the second punching hole cooperates with the punching rod to punch a plate.

7. A door and window punching device according to claim 1, characterized in that: The lower mold mechanism also includes: Two bending parts are rotatably arranged on the outer surface of the first shell. When the first body moves toward the second position, it abuts against one end of the two bending parts respectively to drive the other ends of the two bending parts to rotate in a direction close to each other to form the stamping groove.

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