Mistake proofing device for replacing die punch

Abstract

The invention discloses a mistake proofing device for die punch replacement. The mistake proofing device comprises a step-shaped supporting frame, a die punch specification inspection device, at least two rows of die punch storage racks and a punch cap verification datum plate. A die punch specification inspection device and a row of die punch storage racks are fixedly arranged on a second-stage step surface corresponding to the upper part of the step-shaped support frame in parallel from front to back; a punch cap verification datum plate is fixed on a vertical surface between a first-stage step surface and a second-stage step surface at the upper end of the step-shaped support frame; at least one row of die punch storage racks are fixed on the other step surfaces below the second-stage step surface of the step-shaped support frame; the sizes of the die punches on the error-proofing auxiliary device for die replacement correspond to the die positions on the punch die holder in a one-to-one manner, and the to-be-replaced die punches which are accurately measured after the specifications of the die punches are inspected can be correspondingly stored on the storage platform on the error-proofing auxiliary device; and the punches of which the sizes need to be replaced according to the punch die holder are taken from the corresponding storage platforms to be replaced.

Description

Technical Field

[0001] The invention relates to the technical field of molds, and in particular to an error-proofing device for replacing a mold punch. Background Art

[0002] See also Fig.17 As shown, the die punch includes an integral punch cutting edge 1', a punch diameter 2' and a punch cap 3'; the punch cutting edge 1' and the punch diameter 2' are both cylindrical, the upper end of the punch diameter 2' is fixedly connected to the punch cap 3', and a necking structure 4' is provided between the lower end of the punch diameter 2' and the upper end of the punch cutting edge 1'; the punch diameters below φ17 are of the same diameter, the punch diameters of φ19-φ25 are of the same diameter, and the punch diameters above φ30 are of the same diameter; the lengths of die punches of all sizes are exactly the same, and the only difference is that the diameters of the punch cutting edges are different.

[0003] Because the sizes of die punches used in punching production are 12 types, namely φ9, φ11, φ13, φ15, φ17, φ19, φ21, φ23, φ25, φ30, φ40 and φ50, and the commonly used diameter sizes of φ9, φ11, φ13, φ15, φ17, φ19 and φ21 are difficult to observe with the naked eye, it is easy for employees to take the wrong punch when replacing a new one, and it is easy for employees to put the punch in the wrong position when placing it in the corresponding die position based on experience and memory. Errors in die replacement can easily lead to batch quality accidents, resulting in product quality not meeting process requirements, and increasing the cost of rework and low-value consumables. Summary of the invention

[0004] In order to solve the above problems, the present invention provides an error-proofing device for replacing mold punches, which can quickly and accurately complete the replacement of mold punches and prevent wrong installation; the mold punch sizes on the mold replacement error-proofing auxiliary device are arranged one by one corresponding to the mold position on the punch die base, and the mold punches to be replaced that are accurately measured after the mold punch specifications are inspected will be stored on the storage platform thereon, so that the punches whose sizes need to be replaced according to the punch die base can be taken from the corresponding storage platform for replacement.

[0005] The present invention provides an error-proofing device for replacing a die punch, comprising 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;

[0006] A die punch specification inspection device and a row of die punch storage racks are fixed in parallel front and back on the secondary step surface corresponding to the upper part of the stepped support frame;

[0007] A punch cap verification reference plate 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;

[0008] At least one row of die punch storage racks is fixed on the remaining step surfaces below the secondary step surface of the stepped support frame.

[0009] The stepped support frame includes two symmetrical stepped vertical support surfaces on the left and right structures, and also includes a horizontal connecting plate arranged at the lower part of the rear end surfaces of the two stepped vertical support surfaces. The horizontal connecting plate fixedly connects the two stepped vertical support surfaces on the left and right structures to form a support frame with a U-shaped structure. The first-level step surfaces corresponding to the two stepped vertical support surfaces on the left and right structures are respectively bent inwardly with punch die holder resting arms to place the punch die holder. The inspection holes of the die punch specification inspection device correspond to the hole positions of the punch die holder one by one. The punches of the corresponding specifications that have been inspected can be directly placed in the corresponding punch die holder, or they can be placed to the mold punch storage rack of corresponding size; the mold punch specification inspection device and a row of mold punch storage racks are respectively arranged between the secondary step surfaces corresponding to the left and right stepped vertical support surfaces, the punch cap verification reference plate is arranged between the vertical surfaces between the primary step surface and the secondary step surface of the left and right stepped vertical support surfaces, and at least one row of mold punch storage racks is arranged between the corresponding remaining step surfaces below the secondary step surfaces of the left and right stepped vertical support surfaces; the lower end surface of each stepped vertical support surface is horizontally bent inward and provided with a bending edge to enhance the stability of the stepped support frame support.

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

[0011] The mold punch specification inspection device includes a punch diameter inspection plate and a punch cutting edge inspection limit plate, on which a plurality of punch cutting edge inspection limit openings are arranged, each of which 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 the same as the outer diameter of the punch cutting edge of the corresponding size, the vertical distance from the lower end face of each opening on the punch cutting edge inspection limit plate to the upper end face of the punch cap verification reference plate 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, when the punch cutting edge of a punch of the correct specification is inserted into the punch cutting edge inspection limit opening, the lower end of the necking structure of the punch will be limited to the lower end face of the punch cutting edge inspection limit opening, at this time, the upper end face of the punch cap of the punch of the correct specification is flush with the upper end face of the punch cap verification reference plate, which indicates that the punch is of the corresponding diameter model.

[0012] A long strip of plate is cut as a whole at the front end of the punch blade inspection and limit plate with a funnel-shaped punch blade inspection and limit opening, so that each funnel-shaped punch blade inspection and limit opening presents a C-shaped notch structure with an opening. The C-shaped notch structure is designed to prevent the punch's necking structure from interfering with the original funnel-shaped punch blade inspection and limit opening, making it impossible to easily remove the punch from the punch blade inspection and limit plate. The C-shaped notch structure is made because the metal is flexible. When external force is applied to the punch to lift it up, the C-shaped notch will deform to form a gap between the punch blades, and the punch will be easily removed.

[0013] The mold punch specification inspection device includes a punch diameter inspection plate and a punch cutting edge inspection limit plate, on which a plurality of punch cutting edge inspection limit circular grooves are arranged, each of which 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 the groove body of each punch cutting edge inspection limit circular groove on the punch cutting edge inspection limit 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 cutting edge to the upper end surface of the punch cap. When the lower end of the punch cutting edge of the correct specification punch can be matched and inserted into the punch cutting edge inspection limit circular groove and 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 model.

[0014] The mold punch specification inspection device includes a punch diameter inspection plate and a punch cutting edge inspection limit plate, on which a plurality of limit inspection convex rings are protruding, and each limit inspection convex ring and the upper end surface of the punch cutting edge inspection limit plate together constitute a punch cutting edge inspection limit circular groove, and each punch cutting edge inspection limit circular groove 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 the groove body of each punch cutting edge inspection limit circular groove on the punch cutting edge inspection limit 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 cutting edge to the upper end surface of the punch cap. When the lower end of the punch cutting edge of the correct specification punch can be matched and inserted into the punch cutting edge inspection limit circular groove and 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 model.

[0015] The die punch specification inspection device includes a punch diameter inspection plate and upper and lower punch cutting edge inspection limit plates; the front and rear side walls of the lower punch cutting edge inspection limit plate are engraved with scales in the length direction, and two vernier sliders are slidably connected to the lower punch cutting edge inspection limit plate. The function of a pair of vernier sliders is to directly fit on the left and right side walls of a punch cutting edge accommodated therein, so as to directly know the size specifications of the punch; a plurality of punch cutting edge inspection limit openings are arranged on the upper punch cutting edge inspection limit plate, and each punch cutting edge inspection limit opening 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 the same as the outer diameter of the punch cutting edge of the corresponding size, and the upper punch cutting edge The function of the inspection limit plate is to inspect and guide the punch cutting edge that can be inserted. The lower punch cutting edge inspection limit plate is arranged directly below the upper punch cutting edge inspection limit plate. It is a strip-shaped flat plate structure. The vertical distance from the upper end surface of the lower punch cutting edge inspection limit 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 cutting edge to the upper end surface of the punch cap. When the lower part of the punch cutting edge of the correct specification punch can match the punch cutting edge inspection limit opening inserted into the upper punch cutting edge inspection limit plate, and the lower end surface of the punch cutting edge is limited by the lower punch cutting edge inspection limit plate, at this time, the upper end surface of the punch cap of the correct specification punch is exactly flush with the upper end surface of the punch cap verification reference plate, which indicates that the punch is of the corresponding diameter model.

[0016] The die punch specification inspection device includes a punch diameter inspection plate and upper and lower punch cutting edge inspection limit plates; the front and rear side walls of the lower punch cutting edge inspection limit plate are engraved with scales in the length direction, and two vernier sliders are slidably connected to the lower punch cutting edge inspection limit plate. The function of a pair of vernier sliders is to directly fit on the left and right side walls of a punch cutting edge accommodated therein, so as to directly know the size specifications of the punch; a plurality of punch cutting edge inspection limit openings are arranged on the upper punch cutting edge inspection limit plate, and each punch cutting edge inspection limit opening 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 the same as the outer diameter of the punch cutting edge of the corresponding size, and the upper punch The vertical distance from the lower end face of each opening on the head cutting edge inspection limit plate to the upper end face of the punch cap verification reference plate 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. The function of the upper punch cutting edge inspection limit plate is to inspect, guide and limit the punch cutting edge that can be inserted. The lower punch cutting edge inspection limit plate is provided with a straight hole corresponding to each punch cutting edge inspection limit opening. The straight hole is coaxial with the corresponding punch cutting edge inspection limit opening. The inner diameter of the straight hole is the same as the inner diameter of the lower end face of the punch cutting edge inspection limit opening of the funnel-shaped structure. The function of the lower punch cutting edge inspection limit plate is to add a limiting ring surface to the outer side wall of the lower part of the punch cutting edge to avoid shaking during punch inspection and cause inaccurate measurement.

[0017] The die punch specification inspection device includes a punch diameter inspection plate and upper and lower punch cutting edge inspection limit plates; the front and rear side walls of the lower punch cutting edge inspection limit plate are engraved with scales in the length direction, and two vernier sliders are slidably connected to the lower punch cutting edge inspection limit plate. The function of a pair of vernier sliders is to directly fit the left and right side walls of a punch cutting edge accommodated therein to directly know the size specifications of the punch; a plurality of straight holes are arranged on the upper punch cutting edge inspection limit plate, and each straight hole is in accordance with the outer diameter of the punch cutting edge of the corresponding size. At the same time, a plurality of punch blade inspection limit circular grooves are arranged on the lower punch blade inspection limit plate, the punch blade inspection limit circular grooves correspond one to one to the straight holes on the upper punch blade inspection limit plate and are of the same size, each punch blade inspection limit 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 blade of the corresponding size, and the vertical distance from the bottom wall of the groove body of each punch blade inspection limit circular groove on the punch blade inspection limit 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 blade to the upper end surface of the punch cap.

[0018] Beneficial Effects

[0019] The present invention can quickly and accurately complete the replacement of the mold punch and prevent wrong installation; the mold punch size on the mold replacement error-proofing auxiliary device corresponds one by one to the mold position on the punch die base, and the mold punch to be replaced that is accurately measured after the mold punch specification inspection will be stored on the storage platform thereon, so that the punch whose size needs to be replaced according to the punch die base can be taken from the corresponding storage platform for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall top view structure of the present invention.

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the present invention.

[0022] Figure 3 It is a structural schematic diagram of a first embodiment of a die punch specification inspection device of the present invention.

[0023] Figure 4 The enlarged cross-sectional structure diagram of the embodiment 1 of the die punch specification inspection device of the present invention is Figure 1 .

[0024] Figure 5 It is a structural schematic diagram of a second embodiment of a die punch specification inspection device of the present invention.

[0025] Figure 6 It is a cross-sectional enlarged structural schematic diagram of the second embodiment of the mold punch specification inspection device of the present invention.

[0026] Figure 7 The enlarged cross-sectional structure diagram of the third embodiment of the die punch specification inspection device of the present invention is shown in FIG. Figure 2 .

[0027] Figure 8 It is a structural schematic diagram of a fourth embodiment of a die punch specification inspection device of the present invention.

[0028] Fig. 9 It is a cross-sectional enlarged structural schematic diagram of Embodiment 5 of the die punch specification inspection device of the present invention.

[0029] Fig.10 It is a structural schematic diagram of a fifth embodiment of the die punch specification inspection device of the present invention.

[0030] Fig.11 It is a cross-sectional enlarged structural schematic diagram of the sixth embodiment of the die punch specification inspection device of the present invention.

[0031] Fig.12 It is a structural schematic diagram of Embodiment 7 of the die punch specification inspection device of the present invention.

[0032] Fig.13 The present invention is a schematic diagram of the structure of a lower punch cutting edge inspection limit plate provided with a vernier caliper.

[0033] Fig.14 The present invention is a schematic diagram of an enlarged cross-sectional structure of a lower punch cutting edge inspection limit plate provided with a vernier caliper.

[0034] Fig.15 It is a schematic diagram of the exploded structure of the present invention and the working principle of the punch die base.

[0035] Fig.16 It is a schematic structural diagram of the working principle of the present invention and the punch die base.

[0036] Fig.17 It is a schematic diagram of the punch structure of the prior art.

[0037] In the figure:

[0038] 1', punch cutting edge;

[0039] 2', punch diameter;

[0040] 3', punch cap;

[0041] 4', necking structure;

[0042] 1. Step-shaped support frame; 11. Step-shaped vertical support surface; 111. Punch die holder support arm; 12. Horizontal connecting plate; 13. Bending edge;

[0043] 2. Die punch specification inspection device; 21. Punch diameter inspection plate; 211. Punch diameter inspection opening; 22. Punch edge inspection limit plate; 221. Punch edge inspection limit opening; 222. Punch edge inspection limit circular groove; 223. Limit inspection convex ring; 224. Straight hole;

[0044] 3. Die punch storage rack;

[0045] 4. Punch cap verification reference plate;

[0046] 5. Scale;

[0047] 6. Cursor slider. DETAILED DESCRIPTION

[0048] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, not all.

[0049] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, 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 invention, 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 or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] Example 1

[0052] See also Figure 1-Figure 4 , Figure 15-16 As shown, a device for preventing errors in replacing a die punch comprises a stepped support frame 1, a die punch specification inspection device 2, a four-row die punch storage rack 3 and a punch cap verification reference plate 4;

[0053] 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 part of the stepped support frame 1;

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

[0055] The three rows of die 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 includes two symmetrical stepped vertical support surfaces 11 on the left and right sides, and also includes a horizontal connecting plate 12 arranged at the lower part of the rear end surfaces of the two stepped vertical support surfaces 11. The horizontal connecting plate 12 fixes the two stepped vertical support surfaces 11 on the left and right sides to form a support frame with a U-shaped structure. The first-level step surfaces corresponding to the two stepped vertical support surfaces 11 on the left and right sides are respectively bent inward to have punch die holder rest arms 111; the mold punch specification inspection device 2 and a row of mold punch storage racks 3 are respectively arranged between the second-level step surfaces corresponding to the two stepped vertical support surfaces 11 on the left and right sides, 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 two stepped vertical support surfaces 11 on the left and right sides, and the four rows of mold punch storage racks 3 are respectively arranged between the corresponding third, fourth and fifth step surfaces below the second-level step surface of the two stepped vertical support surfaces 11 on the left and right sides; the lower end surface of each stepped vertical support surface 11 is horizontally bent inward to provide a bending edge 13.

[0057] 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 left and right two stepped vertical support surfaces 11, and the punch diameter inspection plate 21 and the at least one punch cutting edge inspection limit plate 22 are respectively arranged with nine punch diameter inspection openings 211 and nine punch cutting edge inspection limit openings 221 or nine punches. The cutting edge inspection limit circular groove 222, the nine punch cutting edge inspection limit openings 221 or the nine punch cutting edge inspection limit circular grooves 222 correspond to diameters of φ11, φ13, φ17, φ15, φ15, φ21, φ19, φ13, and φ9 respectively, the punch diameter inspection opening 211 and the corresponding punch cutting edge inspection limit opening 221 or the corresponding punch cutting edge inspection limit circular groove 222 are coaxial, and the inner diameter of the punch cutting edge inspection limit opening 221 or the punch cutting edge inspection limit circular groove 222 is smaller than the inner diameter of the punch diameter inspection opening 211.

[0058] The mold punch specification inspection device 2 includes a punch diameter inspection plate 21 and a punch cutting edge inspection limit plate 22, on which a plurality of punch cutting edge inspection limit openings 221 are arranged. 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 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.

[0059] Example 2

[0060] See also Figure 1-Figure 6As shown, an error-proofing device for replacing a mold punch is different from Example 1 in that a long strip of plate is integrally cut from the front end of a punch edge inspection limit plate 22 with a funnel-shaped punch edge inspection limit opening 221, so that each funnel-shaped punch edge inspection limit opening 221 presents a C-shaped notch structure with an opening.

[0061] Example 3

[0062] See also Figure 1-Figure 2 , Figure 7 As shown, a device for preventing errors in replacing mold punches is different from Example 1 in that the mold punch specification inspection device 2 includes a punch diameter inspection plate 21 and a punch cutting edge inspection limit plate 22, and a plurality of punch cutting edge inspection limit circular grooves 222 are arranged on the punch cutting edge inspection limit plate 22. 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 the groove body 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.

[0063] Example 4

[0064] See also Figure 1-Figure 2 , Figure 8 As shown, a device for preventing errors in replacing a mold punch is different from Example 1 in that the mold punch specification inspection device 2 includes a punch diameter inspection plate 21 and a punch cutting edge inspection limit plate 22, and a plurality of limit inspection convex rings 223 are protruding from the punch cutting edge inspection limit plate 22. Each limit inspection convex ring 223 and the upper end surface of the punch cutting edge inspection limit plate 22 together constitute 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, and 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 the groove body 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.

[0065] Example 5

[0066] See also Figure 1-Figure 2 , Figure 9-10 , Figure 13-14As shown, a device for preventing errors in replacing a die punch is different from Example 1 in that the die punch specification inspection device 2 includes a punch diameter inspection plate 21 and upper and lower punch edge inspection limit plates 22; the front and rear side walls of the lower punch edge inspection limit plate 22 are engraved with scales 5 in the length direction, and two vernier sliders 6 are slidably connected to the lower punch edge inspection limit plate 22; the upper punch edge inspection limit plate 22 is provided with a plurality of punch edge inspection limit openings 221, Each punch blade 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 the same as the outer diameter of the punch blade of the corresponding size. The lower punch blade inspection limit plate 22 is arranged directly below the upper punch blade inspection limit plate 22, which is a strip-shaped flat plate structure, and the vertical distance from the upper end face of the lower 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 lower end face of the punch blade to the upper end face of the punch cap.

[0067] Example 6

[0068] See also Figure 1-Figure 2 , Fig.11 , Figure 13-14 As shown, a device for preventing errors in replacing a die punch is different from Example 1 in that the die punch specification inspection device 2 includes a punch diameter inspection plate 21 and 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 length 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, each of which is a funnel-shaped structure, and the inner diameter of the upper end face of the opening is larger than that of the opening. The inner diameter of the lower end face, and the inner diameter of the lower end face of the opening 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.

[0069] Example 7

[0070] See also Figure 1-Figure 2 , Figure 12-14As shown, a device for preventing errors in replacing a die punch is different from Example 1 in that the die punch specification inspection device 2 includes a punch diameter inspection plate 21 and 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 length 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 is the same as the outer diameter of the punch cutting edge of the corresponding size, and the lower punch cutting edge inspection limit plate 22 is provided with a plurality of straight holes 224 ... A plurality of punch cutting edge inspection limit circular grooves 222 are arranged on the limit plate 22. The punch cutting edge inspection limit circular grooves 222 correspond one-to-one to the straight holes 224 on the upper punch cutting edge inspection limit plate 22 and are of the same size. Each punch cutting edge inspection limit 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 cutting edge of the corresponding size. The vertical distance from the bottom wall of the groove body 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.

[0071] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.

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 a corresponding secondary step surface on the upper part of the stepped support frame (1); A punch cap verification reference plate (4) is fixed on a vertical surface between a first step surface and a 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).

2. The error-proofing device for replacing a die punch according to claim 1, characterized in that: The stepped support frame (1) comprises two left and right stepped vertical support surfaces (11) with symmetrical structures, and also comprises a horizontal connecting plate (12) arranged at the lower part of the rear end surfaces 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, and the first-level stepped surfaces corresponding to the left and right stepped vertical support surfaces (11) are respectively bent inward to have punch die holder resting arms (111); the die punch specification inspection device (2) and a row of die punches The punch storage racks (3) are respectively arranged between the secondary 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 primary step surface and the secondary step surface of the left and right stepped vertical support surfaces (11); at least one row of die punch storage racks (3) are arranged between the corresponding remaining step surfaces below the secondary step surfaces of the left and right stepped vertical support surfaces (11); and the lower end surface of each stepped vertical support surface (11) is horizontally bent inward and provided with a bending edge (13).

3. The error-proofing device for replacing a die punch according to claim 2, characterized in that: The die punch specification inspection device (2) comprises 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); the left and right ends of the at least one punch cutting edge inspection limit plate (22) are respectively fixed to two left and right stepped vertical support surfaces (11); and the punch diameter inspection plate (21) and the at least one punch cutting edge inspection limit plate (22) are respectively arranged in a corresponding manner. There are a plurality of punch diameter inspection openings (211) and a plurality of punch cutting edge inspection limit openings (221) or a plurality of punch cutting edge inspection limit circular grooves (222); the punch diameter inspection opening (211) and the corresponding punch cutting edge inspection limit openings (221) or the corresponding punch cutting edge inspection limit circular grooves (222) are coaxial; and the inner diameter of the punch cutting edge inspection limit openings (221) or the punch cutting edge inspection limit circular grooves (222) is smaller than the inner diameter of the punch diameter inspection opening (211).

4. The error-proofing device for replacing a die punch according to claim 3, 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 openings (221) are arranged on the punch cutting edge inspection limit plate (22), each of the punch cutting edge inspection limit openings (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 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.

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

6. The error-proofing device for replacing a die punch according to claim 3, 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 arranged on the punch cutting edge inspection limit plate (22), each of which 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 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.

7. The error-proofing device for replacing a die punch according to claim 3, 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 protrudingly provided on the punch cutting edge inspection limit plate (22), 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), each punch cutting edge inspection limit 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 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.

8. The error-proofing device for replacing a die punch according to claim 3, characterized in that: The die punch specification inspection device (2) comprises a punch diameter inspection plate (21) and two upper and lower punch edge inspection limit plates (22); the front and rear side walls of the lower punch edge inspection limit plate (22) are engraved with scales (5) in the length direction, and two vernier sliders (6) are slidably connected to the lower punch edge inspection limit plate (22); the upper punch edge inspection limit plate (22) is provided with a plurality of punch edge inspection limit openings (221), each punch edge inspection limit opening (221) is provided with a plurality of punch edge inspection limit openings (221) and ... 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 arranged directly below the upper punch blade inspection limit plate (22), which is a strip-shaped flat plate structure, and 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.

9. The error-proofing device for replacing a die punch according to claim 3, characterized in that: The die punch specification inspection device (2) comprises a punch diameter inspection plate (21) and two upper and lower punch edge inspection limit plates (22); the front and rear side walls of the lower punch edge inspection limit plate (22) are engraved with scales (5) in the length direction, and two vernier sliders (6) are slidably connected to the lower punch edge inspection limit plate (22); the upper punch edge inspection limit plate (22) is provided with a plurality of punch edge inspection limit openings (221), each of which 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 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, and 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.

10. The error-proofing device for replacing a die punch according to claim 3, 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 length 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 straight holes (224), each straight hole (224) is the same as the outer diameter of the punch cutting edge of the corresponding size, and the lower punch cutting edge inspection limit plate (22) is provided with a plurality of 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) one by one and has the same size. Each punch cutting edge inspection limit 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 cutting edge of the corresponding size. The vertical distance from the bottom wall of the groove body 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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