A mistake-proofing device for die punch replacement

Abstract

The application discloses a mistake-proofing device for die punch replacement, which comprises a stepped support frame, a die punch specification inspection device, at least two rows of die punch storage racks and a punch cap verification reference plate; the die punch specification inspection device and one row of die punch storage racks are fixed on the corresponding second step surface of the upper part of the stepped support frame in parallel from front to back; the punch cap verification reference plate is fixed on the vertical surface between the first step surface and the second step surface of the upper end of the stepped support frame; the at least one row of die punch storage racks are fixed on the remaining step surfaces below the second step surface of the stepped support frame; the die punch size on the die replacement mistake-proofing auxiliary device is one-to-one corresponding to the die position on the punch die seat; after the die punch specification inspection, the accurately measured die punch to be replaced is stored on the storage platform corresponding thereto, so that the punch with the size to be replaced required by the punch die seat is taken from the corresponding storage platform for replacement.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of molds, in particular to a mistake-proof device for replacing mold punches. BACKGROUND

[0002] Referring to Figure 17 As shown in the figure, the mold punch includes an integrally formed punch blade 1', punch diameter 2' and punch cap 3'; the punch blade 1' and the punch diameter 2' are both cylindrical bodies, the punch cap 3' is fixedly connected to the upper end of the punch diameter 2', and the lower end of the punch diameter 2' and the upper end of the punch blade 1' are in a necked structure 4'; the diameters of the punch diameters of sizes φ17 and below are the same, the diameters of the punch diameters of sizes φ19-φ25 are the same, and the diameters of the punch diameters of sizes φ30 and above are the same; the lengths of the mold punches of all sizes are completely the same, and the only difference is that the diameters of the punch blades are different.

[0003] Because the sizes of the mold punches used in the punching production are φ9, φ11, φ13, φ15, φ17, φ19, φ21, φ23, φ25, φ30, φ40 and φ50, the diameters of the commonly used φ9, φ11, φ13, φ15, φ17, φ19 and φ21 are difficult to observe with the naked eye, and employees are prone to make mistakes when replacing new punches. When employees put the punches into the corresponding mold positions according to experience and memory, the positions are prone to be placed incorrectly, and the replacement of the mold is prone to be incorrect, which is likely to cause batch quality accidents, resulting in product quality not meeting process requirements, causing repair and increasing the cost of low-value consumables. SUMMARY

[0004] To solve the above problems, the present application provides a mistake-proof device for replacing mold punches, which can quickly and accurately complete the replacement of mold punches and prevent incorrect installation; the mold punch sizes on the mold replacement mistake-proof auxiliary device correspond one-to-one to the mold position on the punch mold base, and the accurately measured mold punch to be replaced is stored on the storage platform corresponding thereto after the mold punch specification inspection, so that the punch required to be replaced by the punch mold base is taken from the corresponding storage platform.

[0005] The present application provides a mistake-proof device for replacing mold punches, which includes a stepped support frame, a mold punch specification inspection device, at least two rows of mold punch storage racks and a punch cap verification reference plate;

[0006] The mold punch specification inspection device and one row of mold punch storage racks are fixedly arranged in front of and behind the corresponding second step surface on the upper part of the stepped support frame;

[0007] The punch cap verification reference plate is fixed on the vertical surface between the first step surface and the second step surface on the upper end of the stepped support frame;

[0008] At least one row of die punch storage racks are fixed on the remaining steps below the second step surface of the stepped support frame.

[0009] The stepped support frame comprises two structurally symmetrical stepped vertical support surfaces, and a horizontal connecting plate arranged at the lower part of the rear end surface of the two stepped vertical support surfaces. The horizontal connecting plate fixedly connects the two stepped vertical support surfaces to form a U-shaped support frame. The first step surfaces of the two stepped vertical support surfaces are respectively inwardly bent with punch die seat resting arms to place punch die seats. The inspection holes of the die punch specification inspection device are arranged one-to-one corresponding to the hole positions of the punch die seats. The corresponding specification punch that has passed the inspection can be directly placed into the corresponding punch die seat or placed on the die punch storage rack of the corresponding size. The die punch specification inspection device and the row of die punch storage racks are respectively arranged between the second step surfaces corresponding to the two stepped vertical support surfaces. The punch cap verification reference plate is arranged between the vertical surfaces between the first step surfaces and the second step surfaces of the two stepped vertical support surfaces. At least one row of die punch storage racks are arranged between the corresponding remaining step surfaces below the second step surfaces of the two stepped vertical support surfaces. The lower end surface of each stepped vertical support surface is inwardly and horizontally bent with a bent edge to enhance the stability of the stepped support frame.

[0010] The die punch specification inspection device comprises a punch diameter inspection plate and at least one punch edge inspection limiting plate. The at least one punch edge inspection limiting plate is arranged directly below the punch diameter inspection plate and is respectively fixed on the two stepped vertical support surfaces at the left and right ends to keep the punch edge inspection limiting plate horizontally arranged. The punch diameter inspection plate and the at least one punch edge inspection limiting plate are respectively provided with a plurality of punch diameter inspection openings and a plurality of punch edge inspection limiting openings or a plurality of punch edge inspection limiting circular grooves. The punch diameter inspection openings and the punch edge inspection limiting openings or the punch edge inspection limiting circular grooves are coaxial. The inner diameter of the punch edge inspection limiting openings or the punch edge inspection limiting circular grooves is smaller than the inner diameter of the punch diameter inspection openings.

[0011] The die punch specification inspection device comprises a punch diameter inspection plate and a punch edge inspection limiting plate, the punch edge inspection limiting plate is provided with a plurality of punch edge inspection limiting openings, each punch edge inspection limiting opening is in a funnel structure, the upper end inner diameter of the opening is larger than the lower end inner diameter of the opening, the lower end inner diameter of the opening is the same as the outer diameter of the punch edge of the corresponding size, the vertical distance from the lower end surface of each opening on the punch edge inspection limiting plate to the upper end surface of the punch cap verification reference plate is equal to the vertical distance from the connection between the upper end of the punch edge and the neck structure to the upper end surface of the punch cap, when the punch edge of the correct specification punch is inserted into the punch edge inspection limiting opening, the lower end of the neck structure of the punch is limited at the lower end surface of the punch edge inspection limiting opening, at this time, the upper end surface of the punch cap of the correct specification punch is flush with the upper end surface of the punch cap verification reference plate, which indicates that the punch is of the corresponding diameter type.

[0012] The front end of the punch edge inspection limiting plate with the funnel structure punch edge inspection limiting opening is integrally cut into a long strip-shaped plate, so that each funnel structure punch edge inspection limiting opening presents a C-shaped notch structure with an opening, the C-shaped notch structure is to prevent the neck structure of the punch from being unable to be easily removed from the punch edge inspection limiting plate due to interference fit with the original funnel structure punch edge inspection limiting opening, and the C-shaped notch structure is formed, since metal is flexible, when an external force is applied to the punch to lift it up, the C-shaped notch will deform between the punch edges to form a gap, and the punch will be easily removed.

[0013] The die punch specification inspection device comprises a punch diameter inspection plate and a punch edge inspection limiting plate, the punch edge inspection limiting plate is provided with a plurality of punch edge inspection limiting circular grooves, each punch edge inspection limiting circular groove is in a straight cylindrical groove structure, the groove inner diameter is the same as the outer diameter of the punch edge of the corresponding size, the vertical distance from the groove inner bottom wall of each punch edge inspection limiting circular groove on the punch edge inspection limiting plate to the upper end surface of the punch cap verification reference plate is equal to the vertical distance from the lower end surface of the punch edge to the upper end surface of the punch cap, when the lower end of the punch edge of the correct specification punch can be matched and inserted into the punch edge inspection limiting circular groove and be limited by the lower end, at this time, the upper end surface of the punch cap of the correct specification punch is flush with the upper end surface of the punch cap verification reference plate, which indicates that the punch is of the corresponding diameter type.

[0014] The die punch specification inspection device comprises a punch diameter inspection plate and a punch edge inspection limiting plate, a plurality of limiting inspection convex rings are protruded on the punch edge inspection limiting plate, each limiting inspection convex ring and the upper end face of the punch edge inspection limiting plate jointly form a punch edge inspection limiting circular groove, each punch edge inspection limiting circular groove is a straight cylindrical groove structure, the inner diameter of the groove body is the same as the outer diameter of the punch edge of the corresponding size, the vertical distance from the inner bottom wall of the groove body of each punch edge inspection limiting circular groove on the punch edge inspection limiting plate to the upper end face of the punch cap verification reference plate is equal to the vertical distance from the lower end face of the punch edge to the upper end face of the punch cap, when the lower end of the punch edge of the correct specification punch can be matched and inserted into the punch edge inspection limiting circular groove and be limited by the lower end, at this time, the upper end face of the punch cap of the correct specification punch is just flush with the upper end face of the punch cap verification reference plate, which indicates that the punch is the corresponding diameter type.

[0015] The die punch specification inspection device comprises a punch diameter inspection plate and upper and lower punch edge inspection limiting plates; the front and rear sidewalls of the lower punch edge inspection limiting plate are both engraved with scales, two vernier sliders are slidingly connected to the lower punch edge inspection limiting plate, and a pair of vernier sliders can be directly attached to the left and right sidewalls of an accommodated punch edge to directly know the size specification of the punch; the upper punch edge inspection limiting plate is provided with a plurality of punch edge inspection limiting openings, each punch edge inspection limiting opening is a funnel-shaped structure, the inner diameter of the upper end face of the opening is greater than the inner diameter of the lower end face of the opening, and the inner diameter of the lower end face of the opening is the same as the outer diameter of the punch edge of the corresponding size, the upper punch edge inspection limiting plate plays a role in inspecting and guiding the accommodated punch edge, the lower punch edge inspection limiting plate is arranged directly below the upper punch edge inspection limiting plate and has a strip-shaped plate structure, the vertical distance from the upper end face of the lower punch edge inspection limiting plate to the upper end face of the punch cap verification reference plate is equal to the vertical distance from the lower end face of the punch edge to the upper end face of the punch cap, when the lower part of the punch edge of the correct specification punch can be matched and inserted into the punch edge inspection limiting opening of the upper punch edge inspection limiting plate and the lower end face of the punch edge is limited by the lower punch edge inspection limiting plate, at this time, the upper end face of the punch cap of the correct specification punch is just flush with the upper end face of the punch cap verification reference plate, which indicates that the punch is the corresponding diameter type.

[0016] The die punch specification inspection device comprises a punch diameter inspection plate and upper and lower punch edge inspection limiting plates; the front and rear side walls of the lower punch edge inspection limiting plate are both provided with scales in the length direction, and two vernier slides are slidingly connected to the lower punch edge inspection limiting plate; the function of the pair of vernier slides is to directly fit the left and right side walls of a contained punch edge, so that the size specification of the punch is directly known; the upper punch edge inspection limiting plate is provided with a plurality of punch edge inspection limiting openings, each punch edge inspection limiting opening is a funnel-shaped structure, the inner diameter of the upper end surface of the opening is larger than the inner diameter of the lower end surface of the opening, and the inner diameter of the lower end surface of the opening is the same as the outer diameter of the punch edge of the corresponding size; the vertical distance from the lower end surface of each opening on the upper punch edge inspection limiting plate to the upper end surface of the punch cap verification reference plate is equal to the vertical distance from the upper end of the punch edge to the upper end surface of the punch cap; the function of the upper punch edge inspection limiting plate is to inspect, guide and limit the punch edge that can be contained; the lower punch edge inspection limiting plate is provided with a straight hole corresponding to each punch edge inspection limiting opening; the straight hole is coaxial with the corresponding punch edge inspection limiting opening; the inner diameter of the straight hole is the same as the inner diameter of the lower end surface of the funnel-shaped punch edge inspection limiting opening; the function of the lower punch edge inspection limiting plate is to increase the limiting annular surface of the lower outer side wall of the punch edge, so as to avoid the inaccuracy caused by the shaking of the punch during inspection.

[0017] The die punch specification inspection device comprises a punch diameter inspection plate and upper and lower punch edge inspection limiting plates; the front and rear side walls of the lower punch edge inspection limiting plate are both provided with scales in the length direction, and two vernier slides are slidingly connected to the lower punch edge inspection limiting plate; the function of the pair of vernier slides is to directly fit the left and right side walls of a contained punch edge, so that the size specification of the punch is directly known; the upper punch edge inspection limiting plate is provided with a plurality of straight holes, each straight hole has the same outer diameter as the punch edge of the corresponding size; the lower punch edge inspection limiting plate is provided with a plurality of punch edge inspection limiting circular grooves, each punch edge inspection limiting circular groove is in one-to-one correspondence with a straight hole on the upper punch edge inspection limiting plate and has the same size; each punch edge inspection limiting circular groove is a straight cylindrical groove structure, the groove body inner diameter is the same as the outer diameter of the punch edge of the corresponding size; the vertical distance from the groove body inner bottom wall of each punch edge inspection limiting circular groove on the punch edge inspection limiting plate to the upper end surface of the punch cap verification reference plate is equal to the vertical distance from the lower end surface of the punch edge to the upper end surface of the punch cap.

[0018] Advantages

[0019] The die punch specification inspection device can quickly and accurately complete the replacement of the die punch and prevent incorrect installation; the die punch size on the die replacement mistake prevention auxiliary device is in one-to-one correspondence with the die position on the punch die seat; after the die punch specification inspection, the accurately measured die punch to be replaced is stored on the corresponding storage platform, so that the punch of the required size for the punch die seat can be taken from the corresponding storage platform for replacement. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the schematic diagram of the overall top structure of the present application.

[0021] Figure 2 is the schematic diagram of the three-dimensional structure of the present application.

[0022] Figure 3 is the schematic diagram of the structure of the first embodiment of the die punch specification inspection device of the present application.

[0023] Figure 4 is the schematic diagram of the enlarged cross-section structure of the first embodiment of the die punch specification inspection device of the present application. Figure 1 .

[0024] Figure 5 is the schematic diagram of the structure of the second embodiment of the die punch specification inspection device of the present application.

[0025] Figure 6 is the schematic diagram of the enlarged cross-section structure of the second embodiment of the die punch specification inspection device of the present application.

[0026] Figure 7 is the schematic diagram of the enlarged cross-section structure of the third embodiment of the die punch specification inspection device of the present application. Figure 2 .

[0027] Figure 8 is the schematic diagram of the structure of the fourth embodiment of the die punch specification inspection device of the present application.

[0028] Figure 9 is the schematic diagram of the enlarged cross-section structure of the fifth embodiment of the die punch specification inspection device of the present application.

[0029] Figure 10 is the schematic diagram of the structure of the fifth embodiment of the die punch specification inspection device of the present application.

[0030] Figure 11 is the schematic diagram of the enlarged cross-section structure of the sixth embodiment of the die punch specification inspection device of the present application.

[0031] Figure 12 is the schematic diagram of the structure of the seventh embodiment of the die punch specification inspection device of the present application.

[0032] Figure 13 is the schematic diagram of the structure of the vernier caliper provided on the lower punch edge inspection limiting plate of the present application.

[0033] Figure 14 is the schematic diagram of the enlarged cross-section structure of the vernier caliper provided on the lower punch edge inspection limiting plate of the present application.

[0034] Figure 15 is the schematic diagram of the exploded structure of the working principle of the die punch and the die holder of the present application.

[0035] Figure 16 is the working principle structure schematic diagram of the punch die holder of the present application.

[0036] Figure 17 is the punch structure schematic diagram of the prior art.

[0037] In the figure:

[0038] 1', punch edge;

[0039] 2', punch diameter;

[0040] 3', punch cap;

[0041] 4', neck structure;

[0042] 1, stepped support frame; 11, stepped vertical support surface; 111, punch die holder resting arm; 12, horizontal connecting plate; 13, bent edge;

[0043] 2, mold punch specification inspection device; 21, punch diameter inspection plate; 211, punch diameter inspection opening; 22, punch edge inspection limiting plate; 221, punch edge inspection limiting opening; 222, punch edge inspection limiting circular groove; 223, limiting inspection convex ring; 224, straight hole;

[0044] 3, mold punch storage rack;

[0045] 4, punch cap verification reference plate;

[0046] 5, scale;

[0047] 6, vernier slide. DETAILED DESCRIPTION

[0048] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the present application will be further described below in conjunction with the accompanying drawings and through specific embodiments. It can be understood that the specific embodiments described here are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, in order to facilitate the description, only the parts related to the present application are shown in the drawings, not all.

[0049] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the 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 particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0050] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixed connection, or it can be detachable connection; it can be mechanical connection, or it can be electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0051] Embodiment 1

[0052] Referring to Figures 1-4 、 Figures 15-16 As shown in the figure, a mold punch replacement error prevention device includes a stepped support frame 1, a mold punch specification inspection device 2, four rows of mold punch storage racks 3, and a punch cap verification reference plate 4.

[0053] The stepped support frame 1 has a mold punch specification inspection device 2 and a row of mold punch storage racks 3 fixed on the corresponding second step surface of the upper part of the stepped support frame 1.

[0054] The punch cap verification reference plate 4 is fixed on the vertical surface between the first step surface and the second step surface of the upper end of the stepped support frame 1.

[0055] The three rows of mold punch storage racks 3 are respectively fixed on the third, fourth and fifth step surfaces below the second step surface of the stepped support frame 1.

[0056] The stepped support frame 1 comprises two left and right structure-symmetrical stepped vertical support surfaces 11, and further comprises a horizontal connecting plate 12 arranged at the lower part of the rear end surface of the two stepped vertical support surfaces 11, which fixes and connects the left and right two stepped vertical support surfaces 11 to form a U-shaped support frame. The first stepped surface of the left and right two stepped vertical support surfaces 11 is respectively inwardly bent with a punch die holder resting arm 111. The die punch specification inspection device 2 and a row of die punch storage racks 3 are respectively arranged between the second stepped surfaces corresponding to the left and right two stepped vertical support surfaces 11. The punch cap verification reference plate 4 is arranged between the vertical surfaces between the first stepped surface and the second stepped surface of the left and right two stepped vertical support surfaces 11. Four rows of die punch storage racks 3 are respectively arranged between the third, fourth and fifth stepped surfaces corresponding to the second stepped surfaces of the left and right two stepped vertical support surfaces 11. The lower end surface of each stepped vertical support surface 11 is inwardly horizontally bent with a bent edge 13.

[0057] The die punch specification inspection device 2 comprises a punch diameter inspection plate 21 and at least one punch edge inspection limiting plate 22. The at least one punch edge inspection limiting plate 22 is arranged directly below the punch diameter inspection plate 21, and the left and right ends of the at least one punch edge inspection limiting plate 22 are respectively fixed on the left and right two stepped vertical support surfaces 11. Nine punch diameter inspection holes 211 and nine punch edge inspection limiting holes 221 or nine punch edge inspection limiting circular grooves 222 are respectively arranged on the punch diameter inspection plate 21 and the at least one punch edge inspection limiting plate 22. The nine punch edge inspection limiting holes 221 or the nine punch edge inspection limiting circular grooves 222 correspond to diameters of φ11, φ13, φ17, φ15, φ15, φ21, φ19, φ13 and φ9, respectively. The punch diameter inspection holes 211 and the punch edge inspection limiting holes 221 or the punch edge inspection limiting circular grooves 222 are coaxial. The inner diameter of the punch edge inspection limiting holes 221 or the punch edge inspection limiting circular grooves 222 is smaller than the inner diameter of the punch diameter inspection holes 211.

[0058] The die punch specification inspection device 2 comprises a punch diameter inspection plate 21 and one punch edge inspection limiting plate 22. A plurality of punch edge inspection limiting holes 221 are arranged on the punch edge inspection limiting plate 22. Each punch edge inspection limiting hole 221 is in a funnel-shaped structure. The upper end surface of the hole has a larger inner diameter than the lower end surface of the hole. The inner diameter of the lower end surface of the hole is the same as the outer diameter of the corresponding size of the punch edge. The vertical distance from the lower end surface of each hole on the punch edge inspection limiting plate 22 to the upper end surface of the punch cap verification reference plate 4 is equal to the vertical distance from the connection between the upper end of the punch edge and the neck structure to the upper end surface of the punch cap.

[0059] Embodiment 2

[0060] Reference Figures 1-6As shown in FIG. 1, a mistake-proofing device for die punch replacement is different from that of Embodiment 1 in that a long strip-shaped plate is cut integrally at the front end of the punch edge inspection limiting plate 22 with the funnel-shaped punch edge inspection limiting openings 221, so that each funnel-shaped punch edge inspection limiting opening 221 presents a C-shaped notch structure with an opening.

[0061] Embodiment 3

[0062] Referring to Figures 1-2 , Figure 7 As shown in FIG. 1, a mistake-proofing device for die punch replacement is different from that of Embodiment 1 in that the die punch specification inspection device 2 includes a punch diameter inspection plate 21 and a punch edge inspection limiting plate 22, and a plurality of punch edge inspection limiting circular grooves 222 are provided on the punch edge inspection limiting plate 22. Each punch edge inspection limiting circular groove 222 is a straight cylindrical groove structure, the inner diameter of the groove body is the same as the outer diameter of the punch edge of the corresponding size, and the vertical distance from the inner bottom wall of each punch edge inspection limiting circular groove 222 on the punch edge inspection limiting plate 22 to the upper end surface of the punch cap verification reference plate 4 is equal to the vertical distance from the lower end surface of the punch edge to the upper end surface of the punch cap.

[0063] Embodiment 4

[0064] Referring to Figures 1-2 , Figure 8 As shown in FIG. 1, a mistake-proofing device for die punch replacement is different from that of Embodiment 1 in that the die punch specification inspection device 2 includes a punch diameter inspection plate 21 and a punch edge inspection limiting plate 22, and a plurality of limit inspection convex rings 223 are provided on the punch edge inspection limiting plate 22. Each limit inspection convex ring 223 and the upper end surface of the punch edge inspection limiting plate 22 together form a punch edge inspection limiting circular groove 222. Each punch edge inspection limiting circular groove 222 is a straight cylindrical groove structure, the inner diameter of the groove body is the same as the outer diameter of the punch edge of the corresponding size, and the vertical distance from the inner bottom wall of each punch edge inspection limiting circular groove 222 on the punch edge inspection limiting plate 22 to the upper end surface of the punch cap verification reference plate 4 is equal to the vertical distance from the lower end surface of the punch edge to the upper end surface of the punch cap.

[0065] Embodiment 5

[0066] Referring to Figures 1-2 , Figures 9-10 , Figures 13-14As shown in FIG. 6, a mistake-proofing device for die punch replacement is different from that in Embodiment 1 in that the die punch specification inspection device 2 comprises a punch diameter inspection plate 21 and upper and lower punch edge inspection limiting plates 22; the front and rear sidewalls of the lower punch edge inspection limiting plate 22 are each engraved with a scale 5, and two vernier sliding blocks 6 are slidingly connected to the lower punch edge inspection limiting plate 22; the upper punch edge inspection limiting plate 22 is provided with a plurality of punch edge inspection limiting openings 221, each of which is a funnel-shaped structure, the upper end face inner diameter of the opening is larger than the lower end face inner diameter of the opening, and the lower end face inner diameter of the opening is the same as the outer diameter of the punch edge of the corresponding size; the lower punch edge inspection limiting plate 22 is arranged directly below the upper punch edge inspection limiting plate 22 and is a strip-shaped flat plate structure, and the vertical distance from the upper end face of the lower punch edge inspection limiting plate 22 to the upper end face of the punch cap verification reference plate 4 is equal to the vertical distance from the lower end face of the punch edge to the upper end face of the punch cap.

[0067] Embodiment 6

[0068] Referring to Figures 1-2 , Figure 11 , Figures 13-14 As shown in FIG. 6, a mistake-proofing device for die punch replacement is different from that in Embodiment 1 in that the die punch specification inspection device 2 comprises a punch diameter inspection plate 21 and upper and lower punch edge inspection limiting plates 22; the front and rear sidewalls of the lower punch edge inspection limiting plate 22 are each engraved with a scale 5, and two vernier sliding blocks 6 are slidingly connected to the lower punch edge inspection limiting plate 22; the upper punch edge inspection limiting plate 22 is provided with a plurality of punch edge inspection limiting openings 221, each of which is a funnel-shaped structure, the upper end face inner diameter of the opening is larger than the lower end face inner diameter of the opening, and the lower end face inner diameter of the opening is the same as the outer diameter of the punch edge of the corresponding size; the vertical distance from the lower end face of each opening of the upper punch edge inspection limiting plate 22 to the upper end face of the punch cap verification reference plate 4 is equal to the vertical distance from the upper end of the punch edge to the upper end face of the punch cap of the necked structure, and the lower punch edge inspection limiting plate 22 is provided with a straight hole 224 corresponding to each punch edge inspection limiting opening 221, the straight hole 224 is coaxial with the corresponding punch edge inspection limiting opening 221, and the inner diameter of the straight hole 224 is the same as the lower end face inner diameter of the funnel-shaped punch edge inspection limiting opening 221.

[0069] Embodiment 7

[0070] Referring to Figures 1-2 , Figures 12-14As shown, the mistake-proof device for replacing a die punch is different from that of embodiment 1 in that the die punch specification inspection device 2 comprises a punch diameter inspection plate 21 and upper and lower punch edge inspection limiting plates 22; the front and rear sidewalls of the lower punch edge inspection limiting plate 22 are each provided with a scale 5, and two vernier sliding blocks 6 are slidingly connected to the lower punch edge inspection limiting plate 22; the upper punch edge inspection limiting plate 22 is provided with a plurality of straight holes 224, each of which has the same outer diameter as the punch edge of the corresponding size, and the lower punch edge inspection limiting plate 22 is provided with a plurality of punch edge inspection limiting circular grooves 222, which correspond to the straight holes 224 on the upper punch edge inspection limiting plate 22 in size and number, each of the punch edge inspection limiting circular grooves 222 is a straight cylindrical groove structure, the inner diameter of the groove body is the same as the outer diameter of the punch edge of the corresponding size, and the vertical distance from the inner bottom wall of each punch edge inspection limiting circular groove 222 on the punch edge inspection limiting plate 22 to the upper end surface of the punch cap verification reference plate 4 is equal to the vertical distance from the lower end surface of the punch edge to the upper end surface of the punch cap.

[0071] Although the present application is specifically shown and described in connection with preferred embodiments, those skilled in the art will appreciate that various modifications in form and detail can be made without departing from the spirit and scope of the application as defined by the appended claims.

Claims

1. A device for preventing errors in replacing a die punch, characterized in that: It comprises a stepped support frame (1), a die punch specification inspection device (2), at least two rows of die punch storage racks (3), and a punch cap verification reference plate (4); A die punch specification inspection device (2) and a row of die punch storage racks (3) are fixed in parallel in a front-to-back arrangement on the corresponding secondary step surface of the upper portion of the stepped support frame (1); A punch cap verification reference plate (4) is fixed on a vertical surface between the first step surface and the second step surface at the upper end of the stepped support frame (1); At least one row of die punch storage racks (3) is fixed on the remaining step surfaces below the secondary step surface of the stepped support frame (1); The stepped support frame (1) includes two symmetrical stepped vertical support surfaces (11) on the left and right. The die punch specification inspection device (2) includes a punch diameter inspection plate (21) and at least one punch cutting edge inspection limit plate (22); the at least one punch cutting edge inspection limit plate (22) is arranged directly below the punch diameter inspection plate (21), and the left and right ends of the at least one punch cutting edge inspection limit plate (22) are respectively fixed on the two stepped vertical support surfaces (11) on the left and right. The punch diameter inspection plate (21) and the at least one punch cutting edge inspection limit plate (22) are respectively fixed on the two stepped vertical support surfaces (11) on the left and right. A plurality of punch diameter inspection openings (211) and a plurality of punch cutting edge inspection limiting openings (221) or a plurality of punch cutting edge inspection limiting circular grooves (222) are respectively arranged on the punch diameter inspection limiting plate (22); the punch diameter inspection opening (211) and the aligned punch cutting edge inspection limiting openings (221) or the aligned punch cutting edge inspection limiting circular grooves (222) are coaxial; and the inner diameter of the punch cutting edge inspection limiting openings (221) or the punch cutting edge inspection limiting circular grooves (222) is smaller than the inner diameter of the punch diameter inspection opening (211).

2. The error-proofing device for replacing a die punch according to claim 1, characterized in that: The stepped support frame (1) further comprises a horizontal connecting plate (12) arranged at the lower part of the rear end surface of the two stepped vertical support surfaces (11), the horizontal connecting plate (12) fixedly connects the left and right stepped vertical support surfaces (11) to form a support frame with a U-shaped structure, the first-level step surfaces corresponding to the left and right stepped vertical support surfaces (11) are respectively bent inwardly to have punch die holder resting arms (111); the die punch specification inspection device (2) and a row of die punch storage racks (3) are respectively arranged between the second-level step surfaces corresponding to the left and right stepped vertical support surfaces (11), the punch cap verification reference plate (4) is arranged between the vertical surface between the first-level step surface and the second-level step surface of the left and right stepped vertical support surfaces (11), and at least one row of die punch storage racks (3) is arranged between the corresponding remaining step surfaces below the second-level step surface of the left and right stepped vertical support surfaces (11); the lower end surface of each stepped vertical support surface (11) is horizontally bent inwardly to have a bending edge (13).

3. The error-proofing device for replacing a die punch according to claim 1, characterized in that: The die punch specification inspection device (2) comprises a punch diameter inspection plate (21) and a punch cutting edge inspection limit plate (22), wherein the punch cutting edge inspection limit plate (22) is provided with a plurality of punch cutting edge inspection limit openings (221), each of which is a funnel-shaped structure, wherein the inner diameter of the upper end face of the opening is larger than the inner diameter of the lower end face of the opening, and the inner diameter of the lower end face of the opening is the same as the outer diameter of the punch cutting edge of the corresponding size, and the vertical distance from the lower end face of each opening on the punch cutting edge inspection limit plate (22) to the upper end face of the punch cap verification reference plate (4) is equal to the vertical distance from the connection between the upper end of the punch cutting edge and the necking structure to the upper end face of the punch cap.

4. The error-proofing device for replacing a die punch according to claim 3, characterized in that: The front end of the punch blade inspection and limiting plate (22) with the funnel-shaped punch blade inspection and limiting opening (221) is integrally cut from a long strip of plate, so that each funnel-shaped punch blade inspection and limiting opening (221) presents a C-shaped notch structure with an opening.

5. The error-proofing device for replacing a die punch according to claim 1, characterized in that: The die punch specification inspection device (2) comprises a punch diameter inspection plate (21) and a punch cutting edge inspection limit plate (22), wherein a plurality of punch cutting edge inspection limit circular grooves (222) are provided on the punch cutting edge inspection limit plate (22), each of the punch cutting edge inspection limit circular grooves (222) is a straight cylindrical groove structure, the inner diameter of the groove body is the same as the outer diameter of the punch cutting edge of the corresponding size, and the vertical distance from the bottom wall of each punch cutting edge inspection limit circular groove (222) on the punch cutting edge inspection limit plate (22) to the upper end face of the punch cap verification reference plate (4) is equal to the vertical distance from the lower end face of the punch cutting edge to the upper end face of the punch cap.

6. The error-proofing device for replacing a die punch according to claim 1, characterized in that: The die punch specification inspection device (2) comprises a punch diameter inspection plate (21) and a punch cutting edge inspection limit plate (22), wherein a plurality of limit inspection convex rings (223) are protruding from the punch cutting edge inspection limit plate (22), and each limit inspection convex ring (223) and the upper end surface of the punch cutting edge inspection limit plate (22) together form a punch cutting edge inspection limit circular groove (222), and each punch cutting edge inspection limit circular groove (222) is a straight cylindrical groove structure, wherein the inner diameter of the groove body is the same as the outer diameter of the punch cutting edge of the corresponding size, and the vertical distance from the bottom wall of each punch cutting edge inspection limit circular groove (222) on the punch cutting edge inspection limit plate (22) to the upper end surface of the punch cap verification reference plate (4) is equal to the vertical distance from the lower end surface of the punch cutting edge to the upper end surface of the punch cap.

7. The error-proofing device for replacing a die punch according to claim 1, characterized in that: The die punch specification inspection device (2) comprises a punch diameter inspection plate (21) and two upper and lower punch cutting edge inspection limit plates (22); the front and rear side walls of the lower punch cutting edge inspection limit plate (22) are both engraved with scales (5) in the longitudinal direction, and two vernier sliders (6) are slidably connected to the lower punch cutting edge inspection limit plate (22); the upper punch cutting edge inspection limit plate (22) is provided with a plurality of punch cutting edge inspection limit openings (221), and each punch cutting edge inspection limit opening (221) is provided with a plurality of punch cutting edge inspection limit openings (221). The holes (221) are all funnel-shaped structures, the inner diameter of the upper end surface of the opening is larger than the inner diameter of the lower end surface of the opening, and the inner diameter of the lower end surface of the opening is the same as the outer diameter of the punch blade of the corresponding size. The lower punch blade inspection limit plate (22) is set directly below the upper punch blade inspection limit plate (22), which is a strip-shaped flat plate structure. The vertical distance from the upper end surface of the lower punch blade inspection limit plate (22) to the upper end surface of the punch cap verification reference plate (4) is equal to the vertical distance from the lower end surface of the punch blade to the upper end surface of the punch cap.

8. The error-proofing device for replacing a die punch according to claim 1, characterized in that: The die punch specification inspection device (2) comprises a punch diameter inspection plate (21) and two upper and lower punch cutting edge inspection limit plates (22); the front and rear side walls of the lower punch cutting edge inspection limit plate (22) are both engraved with scales (5) in the longitudinal direction, and two vernier sliders (6) are slidably connected to the lower punch cutting edge inspection limit plate (22); a plurality of punch cutting edge inspection limit openings (221) are provided on the upper punch cutting edge inspection limit plate (22), and each punch cutting edge inspection limit opening (221) is a funnel-shaped structure, the inner diameter of the upper end face of the opening is larger than the inner diameter of the lower end face of the opening, and the inner diameter of the lower end face of the opening is larger than the inner diameter of the lower end face of the opening. The diameter is the same as the outer diameter of the punch blade of the corresponding size, the vertical distance from the lower end face of each opening on the upper punch blade inspection limit plate (22) to the upper end face of the punch cap verification reference plate (4) is equal to the vertical distance from the connection between the upper end of the punch blade and the necking structure to the upper end face of the punch cap, the lower punch blade inspection limit plate (22) is provided with a straight hole (224) corresponding to each punch blade inspection limit opening (221), the straight hole (224) is coaxial with the corresponding punch blade inspection limit opening (221), and the inner diameter of the straight hole (224) is the same as the inner diameter of the lower end face of the punch blade inspection limit opening (221) of the funnel-shaped structure.

9. The error-proofing device for replacing a die punch according to claim 1, characterized in that: The die punch specification inspection device (2) comprises a punch diameter inspection plate (21) and two upper and lower punch cutting edge inspection limit plates (22); the front and rear side walls of the lower punch cutting edge inspection limit plate (22) are engraved with scales (5) in the longitudinal direction, and two vernier sliders (6) are slidably connected to the lower punch cutting edge inspection limit plate (22); a plurality of straight holes (224) are provided on the upper punch cutting edge inspection limit plate (22), each straight hole (224) having the same outer diameter as the punch cutting edge of the corresponding size, and a plurality of straight holes (224) are provided on the lower punch cutting edge inspection limit plate (22). The punch cutting edge inspection limit circular groove (222) corresponds to the straight hole (224) on the upper punch cutting edge inspection limit plate (22) in a one-to-one manner and has the same size. Each punch cutting edge inspection limit circular groove (222) is a straight cylindrical groove structure, and the inner diameter of the groove body is the same as the outer diameter of the punch cutting edge of the corresponding size. The vertical distance from the bottom wall of each punch cutting edge inspection limit circular groove (222) on the punch cutting edge inspection limit plate (22) to the upper end face of the punch cap verification reference plate (4) is equal to the vertical distance from the lower end face of the punch cutting edge to the upper end face of the punch cap.

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