Single nut fixing buckle punch forming device

Abstract

The utility model discloses a single nut fixing buckle punch forming device, and belongs to the field of spare and accessory part production equipment. The stamping and reaming die comprises an upper die base, a lower die base and a stamping and reaming assembly. A punching and trimming assembly, an edge folding and bending assembly and a tapping assembly are sequentially arranged between the upper die base and the lower die base in the advancing direction of a plate. The stamping and reaming assemblies are arranged beside the punching and trimming assembly and the edge folding and bending assembly correspondingly, and the connecting line of the centers of the stamping and reaming assemblies and the center of the tapping assembly is parallel to the center line of the plate. By means of the device, the threaded hole can be machined in the single nut fixing buckle more conveniently, the occupied area is small, and the working efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the field of spare parts production equipment, in particular to a single-piece nut fixing buckle stamping and forming device. Background Art

[0002] The single-piece nut fixing buckle is made of sheet metal, which is mainly used to cooperate with the fastening bolts to realize the fastening connection of two parts. It needs to go through the processes of punching, folding and bending during stamping. In the prior art, each stamping process of the single-piece nut fixing buckle is completed on different devices respectively, which occupies a large area, and it is necessary to improve this. Utility Model Content

[0003] The utility model aims to provide a single-piece nut fixing buckle stamping and forming device to solve the problem of large floor space occupied by the existing related technology.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a single-piece nut fixing buckle stamping and forming device, comprising an upper die base, a lower die base and a stamping and expanding assembly, wherein a punching and trimming assembly, a folding and bending assembly and a tapping assembly are sequentially arranged between the upper die base and the lower die base along the forward direction of the plate; the stamping and expanding assembly is arranged next to the punching and trimming assembly and next to the folding and bending assembly, and a line connecting the center of the stamping and expanding assembly and the center of the tapping assembly is parallel to the center line of the plate.

[0005] In the above technical solution, the punching and trimming assembly includes a punching knife and a trimming knife installed on the upper die base, and a punching hole and a trimming hole installed on the lower die base. There are two trimming knives and they are located on both sides of the punching knife. The punching hole is located directly below the punching knife, and the trimming hole is located directly below the trimming knife.

[0006] In the above technical solution, the stamping and expanding assembly includes a first expanding block installed on the upper die base and a first expanding groove arranged on the lower die base, and the first expanding block and the first expanding groove are both conical structures.

[0007] In the above technical scheme, the folding and bending assembly includes an upper folding knife and an upper bending block installed on the upper die base, and a lower folding groove and an upper bending groove installed on the lower die base, the lower folding groove is located directly below the upper folding knife, and the upper bending groove is located directly below the upper bending block.

[0008] In the above technical solution, the stamping and expanding assembly also includes a second expanding block installed on the upper die base and a second expanding groove arranged on the lower die base, the second expanding block is installed between the upper folding knife and the upper bending block, the line connecting the center of the first expanding block and the center of the second expanding block is parallel to the center line of the plate, and the first expanding block and the first expanding groove are both funnel-shaped structures.

[0009] In the above technical solution, the tapping assembly includes a tapping motor installed on the upper die base and a tapping through hole arranged on the lower die base. The output end of the tapping motor is connected to a tapping tool arranged in a direction perpendicular to the plate. The center line of the tapping tool and the center line of the tapping through hole are collinearly arranged.

[0010] In the above technical solution, a plurality of guide and positioning columns are further arranged between the upper die base and the lower die base.

[0011] The utility model provides a single-piece nut fixing buckle stamping and forming device, comprising an upper die base, a lower die base, a tapping assembly and a stamping and expanding assembly and other components. The present application can simultaneously realize punching, folding and bending and other processes on one device, and it occupies a small area and has a high work efficiency. At the same time, the stamping and expanding assembly located next to the punching and trimming assembly can realize a primary expansion of the plate to form a conical hole on the plate, and the stamping and expanding assembly located next to the folding and bending assembly can realize a secondary expansion of the plate to form a funnel-shaped hole on the plate. In this way, under the action of the above two punching and trimming assemblies, the present application can more conveniently process a threaded hole on the single-piece nut fixing buckle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0013] Figure 1 It is a structural schematic diagram of an upper die base and its connection structure in a single-piece nut fixing buckle stamping and forming device described in the present application;

[0014] Figure 2 It is a structural schematic diagram of the lower die base and its connection structure in the single-piece nut fixing buckle stamping and forming device described in the present application;

[0015] Figure 3 It is a schematic diagram of the structure of the punching and expanding assembly described in this application.

[0016] In the figure: 11, upper die seat; 12, lower die seat; 13, guide and positioning column; 2, tapping assembly; 21, tapping motor; 22, tapping through hole; 23, tapping knife; 3, punching and expanding assembly; 31, first expanding block; 32, first expanding slot; 33, second expanding block; 34, second expanding slot; 4, punching and trimming assembly; 41, punching knife; 42, trimming knife; 43, punching hole; 44, trimming hole; 45, punching shear Knife; 451, first shearing station; 452, second shearing station; 453, third shearing station; 454, fourth shearing station; 455, stepped platform; 456, punching protrusion; 46, punching clamping block; 47, punching support platform; 5, hemming and bending assembly; 51, upper hemming knife; 52, upper bending block; 53, lower hemming groove; 54, upper bending groove; 55, hemming clamping block; 56, hemming punching knife; 57, hemming support platform. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. At the same time, it should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0018] like Figure 1 As shown, the utility model provides a single-piece nut fixing buckle stamping and forming device, including an upper die base 11, a lower die base 12 and a stamping and expanding assembly 3, and a punching and trimming assembly 4, a folding and bending assembly 5 and a tapping assembly 2 are sequentially arranged between the upper die base 11 and the lower die base 12 along the forward direction of the plate; the stamping and expanding assembly 3 is arranged next to the punching and trimming assembly 4 and next to the folding and bending assembly 5, and the line connecting the center of the stamping and expanding assembly 3 and the center of the tapping assembly 2 is parallel to the center line of the plate.

[0019] In actual work, the present application can simultaneously realize punching, folding and bending processes on one device, which occupies a small area and has high work efficiency; at the same time, the punching and reaming component 3 located next to the punching and trimming component 4 can realize a primary reaming of the plate to form a conical hole on the plate, and the punching and reaming component 3 located next to the folding and bending component 5 can realize a secondary reaming of the plate to form a funnel-shaped hole on the plate. In this way, under the action of the above-mentioned two punching and trimming components 4, the present application can more conveniently process threaded holes on the single-piece nut fixing buckle.

[0020] The punching and trimming assembly 4 includes a punching knife 41 and a trimming knife 42 installed on the upper die base 11, and a punching hole 43 and a trimming hole 44 installed on the lower die base 12. The trimming knife 42 has two and is located on both sides of the punching knife 41. The punching hole 43 is located directly below the punching knife 41, and the trimming hole 44 is located directly below the trimming knife 42.

[0021] In actual work, after the plate is processed by the punching and trimming component 4, two symmetrically arranged punching blanks will be formed on the plate. In this way, after subsequent folding and tapping processes, the present application can punch out two punching blanks at one time, and its working efficiency is relatively high.

[0022] During actual operation, the punching knife 41 includes a punching shearing knife 45 and a punching pressing block 46. The punching pressing block 46 is fixedly connected to the upper die base 11. There are two punching shearing knives 45 and they are located on both sides of the punching pressing block 46. The punching shearing knife 45 is provided with a spring and can slide up and down along the side wall of the punching pressing block 46. The arrangement of the above-mentioned punching shearing knife 45 and the punching pressing block 46 is a conventional means established in this field and will not be elaborated here.

[0023] During actual operation, a punching support platform 47 is provided on the lower die base 12, which is located directly below the punching clamping block 46. The shape of the outer edge of the punching support platform 47 and the shape of the outer edge of the punching clamping block 46 are consistent with the shape of the (two) single-piece nut fixing buckles in the unfolded state. The shape of the punching shearing knife 45 matches the shape of the outer edge of the punching clamping block 46. Specifically, the punching shearing knife 45 includes a first shearing platform 451 located in the middle, and the second shearing platform 452, the first shearing platform 453 and the second shearing platform 454 are connected to the first shearing platform 451 on both sides from the inside to the outside. There are three shearing stations 453 and a fourth shearing station 454. The first shearing station 451, the second shearing station 452 and the fourth shearing station 454 are all rectangular structures as a whole. A step platform 455 is arranged between the first shearing station 451 and the second shearing station 452. The third shearing station 453 is a trapezoidal structure as a whole. The side of the third shearing station 453 close to the punching and clamping block 46 is an inclined surface. A punching protrusion 456 is arranged on the side of the fourth shearing station 454 close to the third shearing station 453, and a punching groove is arranged between the protrusion and the end of the third shearing station 453.

[0024] The punching and expanding assembly 3 includes a first expanding block 31 installed on the upper die base 11 and a first expanding groove 32 provided on the lower die base 12 . Both the first expanding block 31 and the first expanding groove 32 are conical structures.

[0025] In actual operation, the first hole-expanding block 31 is installed at the bottom of the punching and pressing block 46, the first hole-expanding groove 32 is arranged at the top of the punching support platform 47, and the first hole-expanding groove 32 is located directly below the first hole-expanding block 31. Under the joint action of the first hole-expanding block 31 and the first hole-expanding groove 32, the present application can realize one-time hole-expanding of the plate to form one-time punching and hole-expanding, so as to facilitate the subsequent tapping process of the plate.

[0026] The hemming and bending assembly 5 includes an upper hemming knife 51 and an upper bending block 52 installed on the upper die base 11, and a lower hemming groove 53 and an upper bending groove 54 installed on the lower die base 12, wherein the lower hemming groove 53 is located directly below the upper hemming knife 51, and the upper bending groove 54 is located directly below the upper bending block 52.

[0027] During actual operation, the upper folding knife 51 is located at both ends of the plate, and the upper bending block 52 is located in the middle of the plate. The upper folding knife 51 includes a folding clamping block 55 fixedly mounted on the upper die base 11 and a folding punching knife 56 mounted on the upper die base 11 and capable of sliding up and down. A folding support platform 57 corresponding to the folding clamping block 55 is arranged on the lower die base 12. The folding clamping block 55 and the folding punching knife 56 are both cubic structures. There are two folding punching knives 56 and they are located on both sides of the folding clamping block 55. A spring is arranged on the folding punching knife 56 and it can slide up and down along the side wall of the folding clamping block 55. The arrangement of the above-mentioned folding clamping block 55 and the folding punching knife 56 is a conventional means established in this field and will not be elaborated here.

[0028] The stamping and reaming assembly 3 also includes a second reaming block 33 installed on the upper die base 11 and a second reaming groove 34 arranged on the lower die base 12, the second reaming block 33 is installed between the upper folding knife 51 and the upper bending block 52, the line connecting the center of the first reaming block 31 and the center of the second reaming block 33 is parallel to the center line of the plate, and the first reaming block 31 and the first reaming groove 32 are both funnel-shaped structures.

[0029] In actual operation, the second hole-expanding block 33 is installed at the bottom of the folding pressing block 55, the second hole-expanding groove 34 is set at the top of the folding support platform 57, and the second hole-expanding groove 34 is located directly below the second hole-expanding block 33. Under the joint action of the second hole-expanding block 33 and the second hole-expanding groove 34, the present application can realize secondary hole-expanding of the plate to form a secondary punching hole, so as to facilitate the subsequent tapping process of the plate.

[0030] The tapping assembly 2 includes a tapping motor 21 installed on the upper die base 11 and a tapping through hole 22 set on the lower die base 12. The output end of the tapping motor 21 is connected to a tapping cutter 23 arranged in a direction perpendicular to the plate, and the center line of the tapping cutter 23 and the center line of the tapping through hole 22 are collinearly arranged. In this way, the present application also realizes the layout of the structure of the tapping assembly 2. The tapping motor 21 can drive the tapping cutter 23 to rotate when working, so as to process an internal thread in the secondary tapping hole.

[0031] A plurality of guide and positioning columns 13 are further provided between the upper die base 11 and the lower die base 12 to allow the processing accuracy of the present application to be higher and ensure the yield rate.

[0032] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A single-piece nut fixing buckle stamping and forming device, characterized in that: The invention comprises an upper die base (11), a lower die base (12) and a punching and expanding assembly (3); a punching and trimming assembly (4), a folding and bending assembly (5) and a tapping assembly (2) are arranged in sequence between the upper die base (11) and the lower die base (12) along the advancing direction of the plate; the punching and trimming assembly (4) and the folding and bending assembly (5) are both arranged with the punching and expanding assembly (3); the line connecting the center of the punching and expanding assembly (3) and the center of the tapping assembly (2) is parallel to the center line of the plate.

2. The single-piece nut fixing buckle stamping and forming device according to claim 1 is characterized in that: The punching and trimming assembly (4) comprises a punching knife (41) and a trimming knife (42) mounted on an upper die base (11), and a punching hole (43) and a trimming hole (44) mounted on a lower die base (12); the trimming knife (42) has two and is located on both sides of the punching knife (41); the punching hole (43) is located directly below the punching knife (41); and the trimming hole (44) is located directly below the trimming knife (42).

3. The single-piece nut fixing buckle stamping and forming device according to claim 2 is characterized in that: The punching and expanding hole assembly (3) comprises a first expanding hole block (31) mounted on an upper die base (11) and a first expanding hole groove (32) arranged on a lower die base (12); the first expanding hole block (31) and the first expanding hole groove (32) are both conical structures.

4. The single-piece nut fixing buckle stamping and forming device according to claim 3 is characterized in that: The hemming and bending assembly (5) comprises an upper hemming knife (51) and an upper bending block (52) mounted on an upper die base (11), and a lower hemming groove (53) and an upper bending groove (54) mounted on a lower die base (12), wherein the lower hemming groove (53) is located directly below the upper hemming knife (51), and the upper bending groove (54) is located directly below the upper bending block (52).

5. The single-piece nut fixing buckle stamping and forming device according to claim 4 is characterized in that: The punching and reaming assembly (3) further comprises a second reaming block (33) mounted on the upper die base (11) and a second reaming groove (34) arranged on the lower die base (12); the second reaming block (33) is mounted between the upper folding knife (51) and the upper bending block (52); a line connecting the center of the first reaming block (31) and the center of the second reaming block (33) is parallel to the center line of the plate; the first reaming block (31) and the first reaming groove (32) are both funnel-shaped structures.

6. The single-piece nut fixing buckle stamping and forming device according to claim 5, characterized in that: The tapping assembly (2) comprises a tapping motor (21) mounted on an upper die base (11) and a tapping through hole (22) arranged on a lower die base (12); the output end of the tapping motor (21) is connected to a tapping cutter (23) arranged in a direction perpendicular to the plate; the center line of the tapping cutter (23) and the center line of the tapping through hole (22) are arranged in a colinear manner.

7. The single-piece nut fixing buckle stamping and forming device according to claim 6, characterized in that: A plurality of guide and positioning columns (13) are also arranged between the upper die seat (11) and the lower die seat (12).

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