CN111250581A

CN111250581A - Punch forming device for semi-finished product hasp

Info

Publication number: CN111250581A
Application number: CN202010187458.8A
Authority: CN
Inventors: 叶岑伟
Original assignee: Cixi Chaohang Metal Products Co Ltd
Current assignee: Zhejiang Pilot Free Trade Zone Minrui Enterprise Management Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-06-09

Abstract

A punch forming device for semi-finished product hasps comprises a base and a lifting table, wherein the base is provided with a bottom die on the right side, the bottom die is provided with a supporting surface, a first forming surface and a second forming surface, a sliding frame is arranged on the inner side and the outer side of the base, a sliding block is arranged on the sliding frame and matched with a compression spring, a second forming die is fixed on the sliding block and consists of a main die and a secondary die, the lifting table is provided with a vertical rod, a first gas spring and a second gas spring in the middle, a first extrusion surface is machined on the lower portion of the vertical rod, the first forming die is fixed at the lower end of the first gas spring, a first inclined surface is machined on the first forming die, the first forming die further comprises a lap shoulder, a pressing die is fixed at the lower end of the second gas spring; according to the scheme, the semi-finished product hasp is bent twice and turned over to be formed through one piece of equipment, the device is compact in structure, ingenious in design, high in precision of produced products, high in production efficiency and capable of saving a large amount of human capital.

Description

Punch forming device for semi-finished product hasp

Technical Field

The invention relates to a punch forming device for a semi-finished product hasp.

Background

Fig. 13 and 14 are schematic diagrams of a semi-finished hasp 14, a main body of the semi-finished hasp is in a sheet shape, one end of the sheet is curled to form a hook 141, the schematic diagram of the formed hasp refers to fig. 9, the formed hasp is provided with two flanges 142, two times of bending and flanging forming are required from the semi-finished hasp to the finished hasp, when a workshop is processed, the semi-finished hasp is completed step by step through a plurality of devices, the position of a workpiece to be processed is manually transferred among the devices by workers, the semi-automatic production mode efficiency is high, the production period of a single part is long, the semi-finished hasp cannot meet the requirements of batch production, the positioning standards of all processing devices are not uniform, the processing precision of a product needs to be improved, and the product rejection phenomenon is common.

Disclosure of Invention

Aiming at the defects in the problems, the invention provides a punch forming device for semi-finished product hasps.

In order to achieve the purpose, the invention provides a punch forming device of a semi-finished product hasp, which comprises a base and a lifting platform moving relative to the base, wherein the right side of the base is provided with a bottom die, the bottom die is provided with a supporting surface positioned at the upper part, a first forming surface and a second forming surface, the first forming surface and the second forming surface are connected with the supporting surface, the width values of the first forming surface and the second forming surface are consistent and are smaller than the supporting surface, the inner side and the outer side of the base are provided with a sliding frame, a sliding block is arranged on the sliding frame and is provided with a compression spring, a second forming die is fixed above the sliding block and consists of a main die and auxiliary dies arranged at two sides of the main die, the left side of the main die is provided with a second extrusion surface, the right side of the main die is provided with a second inclined surface matched with the second forming surface, the auxiliary dies are provided with flanging forming surfaces, and the middle part, The lower part of the upright rod is provided with a first extrusion surface corresponding to the second extrusion surface, the lower end of the first gas spring is fixedly provided with a first forming die, a first inclined surface matched with the first forming surface is processed on the first forming die, the first forming die further comprises a shoulder protruding rightwards, the lower end of the second gas spring is fixedly provided with a pressing die, a leaning groove matched with the shoulder is processed on the pressing die, the inner side and the outer side of the lifting platform are further provided with flanging knives, and the flanging knives are symmetrically distributed on the inner side and the outer side of the first gas spring;

according to the scheme, the semi-finished product hasp is bent twice and turned over to be formed through one piece of equipment, the device is compact in structure, ingenious in design, high in precision of produced products, high in production efficiency and capable of saving a large amount of human capital.

Preferably, the supporting surface consists of a horizontal plane and a section of arc surface on the right side of the horizontal plane, and the lower surface of the pressing die is matched with the supporting surface;

in the technical scheme, the shape of the supporting surface is matched with that of the semi-finished product hasp, and the semi-finished product hasp can be further adjusted in position through the action of the pressing die after being placed on the supporting surface, so that the positioning is accurate.

Preferably, the bottom die is marked with symmetrical scales or scratches on the right side wall surface;

in the above technical solution, the intermediate position of the semi-finished product hasp can be aligned through the scale or the scratch.

Preferably, the width of the first molding surface and the second molding surface is smaller than the width of a semi-finished buckle, and the width of the supporting surface is larger than the width of the semi-finished buckle;

in the technical scheme, the width of the first molding surface is reduced from the supporting surface, so that a feed space is formed at the position, and the flanging knife can enter the feed space.

Preferably, the main mold and the secondary mold are integrally formed, and the second inclined surface extends towards the secondary mold;

in above-mentioned technical scheme, integrated into one piece makes the second forming die can conveniently obtain by moulding plastics, and the extension of second inclined plane makes when bending the secondary toward the secondary mould, and the second forming die has bigger area of contact with the semi-manufactured goods hasp.

Preferably, the main mold is further provided with a second inclined surface I, the second inclined surface I is consistent with the inclination of the first molding surface, and the second inclined surface I extends towards the secondary mold;

in the technical scheme, the second inclined plane I is consistent with the inclination of the first forming surface, so that the semi-finished product hasp is always subjected to surface acting force and is uniformly stressed when being bent for the second time.

Compared with the prior art, the invention has the beneficial effects that: among the prior art semi-manufactured goods hasp relies on the manual work to distribute at many equipment and accomplishes, and is inefficient, has the potential safety hazard, and this scheme has realized twice of semi-manufactured goods hasp and turn-ups shaping through an equipment, and device compact structure, design benefit, the product precision of production is high, and production efficiency is fast, has practiced thrift a large amount of human capital.

Drawings

FIG. 1 is a top view of a punch forming apparatus for a semi-finished fastener of the present invention;

FIG. 2 is a cross-sectional view taken at location B-B of FIG. 1;

FIG. 3 is a cross-sectional view taken at location A-A of FIG. 1;

FIGS. 4-7 are schematic diagrams of the step-by-step operation of FIG. 2;

FIGS. 8-12 are schematic diagrams of the step-by-step operation of FIG. 3 (FIGS. 8-11 correspond to FIGS. 4-7 in one-to-one position);

FIG. 13 is a top plan view of the semi-finished fastener;

FIG. 14 is a cross-sectional view taken at the position C-C of FIG. 13;

FIG. 15 is a schematic view of the molded fastener.

In the figure: 1. a base; 2. a carriage; 3. a slider; 4. pressing a spring; 5. a lifting platform; 6. bottom die; 61. a support surface; 62. a first molding surface; 63. a second molding surface; 7. a second gas spring; 8. pressing the die; 81. leaning groove; 9. a first molding die; 91. shoulder lapping; 92. a first inclined plane; 10. a first gas spring; 11. a flanging knife; 12. a second molding die; 121. performing primary molding; 1211. a second extrusion surface; 1212. a second inclined plane; 1213. a second bevel I; 122. secondary mould; 1221. flanging a molding surface; 13. erecting a rod; 131. a first extrusion surface; 14. semi-finished hasp; 141. hooking; 142. and (5) flanging.

Detailed Description

As shown in fig. 1 to 3, a punch forming apparatus for a semi-finished product buckle according to an embodiment of the present invention includes a base 1 and a lifting table 5 moving relative to the base 1, wherein the base 1 is provided with a bottom mold 6 on a right side, the bottom mold 6 has a supporting surface 61 located on an upper portion, a first molding surface 62 connected to the supporting surface 61, and a second molding surface 63, a connection portion of which is in smooth transition, widths of the first molding surface 62 and the second molding surface 63 are the same and are both smaller than the supporting surface 61, the semi-finished product buckle 14 is placed on the supporting surface 61 of the bottom mold 6, widths of the first molding surface 62 and the second molding surface 63 are smaller than a width of the semi-finished product buckle 14, and a width of the supporting surface 61 is larger than a width of the semi-finished product buckle 14, such that a certain space is reserved; a sliding frame 2 is arranged on the inner side and the outer side of the base 1, a sliding block 3 is arranged on the sliding frame 2 and is provided with a compression spring 4, a second forming die 12 is fixed above the sliding block 3, the second forming die 12 consists of a main die 121 and auxiliary dies 122 arranged on two sides of the main die 121, a second extrusion surface 1211 is processed on the left side of the main die 121, a second inclined surface 1212 matched with the second forming surface 63 is processed on the right side of the main die 121, and a flanging forming surface 1221 is processed on the auxiliary dies 122; the middle part of the lifting platform 5 is sequentially provided with a vertical rod 13, a first gas spring 10 and a second gas spring 7 from left to right, the lower part of the vertical rod 13 is provided with a first extrusion surface 131 corresponding to the second extrusion surface 1211, the lower end of the first gas spring 10 is fixed with a first forming die 9, the first forming die 9 is provided with a first inclined surface 92 matched with the first forming surface 62, the first forming die 9 further comprises a shoulder 91 protruding towards the right, the lower end of the second gas spring 7 is fixed with a pressing die 8, the pressing die 8 is provided with a leaning groove 81 matched with the shoulder 91, the inner side and the outer side of the lifting platform 5 are further provided with flanging knives 11, and the flanging knives 11 are symmetrically distributed on the inner side and the outer side of the first gas spring 10 (the inner side and the outer side of the first forming surface 62 are reserved with spaces for; the supporting surface 61 consists of a horizontal plane and a section of arc surface on the right side of the horizontal plane, the lower surface of the pressing die 8 is matched with the supporting surface 61, and the position of a workpiece to be machined can be further adjusted under the action of the pressing die 8 and the supporting surface 61; the bottom die 6 is marked with symmetrical scales or scratches on the right side wall surface for centering a workpiece to be machined; the main die 121 and the secondary die 122 are integrally formed, and the second inclined surface 1212 extends toward the secondary die 122 so that a larger contact area is formed during secondary bending; the main mold 121 further has a second inclined surface I1213, the second inclined surface I1213 is consistent with the inclination of the first molding surface 62, and the second inclined surface I1213 extends toward the secondary mold 122, so that the force is more uniform.

In the prior art, the semi-finished product hasp is manually distributed and finished in a plurality of devices, the efficiency is low, potential safety hazards exist, the scheme realizes twice bending and flanging forming of the semi-finished product hasp by one device, the device has compact structure and ingenious design, the produced product has high precision and fast production efficiency, and a large amount of human capital is saved;

in particular use, the invention will be described with reference to the accompanying drawings for the convenience of understanding;

referring to the initial position shown in fig. 2 and 3, the semi-finished product hasp is placed on a supporting surface of the bottom die to realize initial positioning;

referring to fig. 4 and 8, the lifting platform is downward, the pressing die is firstly contacted with the semi-finished product hasp, and the semi-finished product hasp is accurately positioned through the extrusion action;

referring to fig. 5 and 9, the lifting platform continues to move downwards, the second gas spring contracts, and the first inclined surface 92 of the first molding die and the first molding surface 62 act to form the semi-finished product fastener 14 for the first time; after the first bending, the shoulder 91 is leaned against the leaning groove 81, and the first forming die 9 does not descend;

referring to fig. 6 and 10, the lifting platform continues to move downwards, the first gas spring and the second gas spring contract, the first extrusion surface 131 of the upright rod and the second extrusion surface 1211 of the main mold 121 perform extrusion action to push the second molding mold 12 to move right to contact with the semi-finished product buckle 14, wherein the main mold 121 acts on the middle part of the semi-finished product buckle 14 (shown in fig. 6), and the auxiliary mold 122 acts on both sides of the semi-finished product buckle 14 (shown in fig. 10);

referring to fig. 7 and 11, the lifting platform continues to move downwards, the second forming die 12 continues to move to the right against the elastic force of the pressing spring, and the second inclined surface 1212 and the second forming surface 63 act to perform secondary forming on the semi-finished product hasp 14;

referring to fig. 12, the lifting platform continues to move downwards, the flanging knife 11 starts to contact the workpiece to be machined, and a flanging 142 is formed; then the lifting platform resets, and the formed product is taken out manually.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a stamping forming device of semi-manufactured goods hasp, includes base (1) and for elevating platform (5) of base (1) motion, its characterized in that: base (1) is equipped with die block (6) in the right side, die block (6) have be located upper portion supporting surface (61) and with first shaping surface (62), second shaping surface (63) that supporting surface (61) are connected, first shaping surface (62) with the width value of second shaping surface (63) is unanimous and all is less than supporting surface (61), base (1) is equipped with carriage (2) in the inside and outside, slider (3) are equipped with on carriage (2) and be furnished with compression spring (4), slider (3) top is fixed with second shaping mould (12), second shaping mould (12) are by primary mould (121) and locate secondary mould (122) of primary mould (121) both sides are constituteed, primary mould (121) have second extrusion surface (1211) in the left side processing, primary mould (121) have on the right side with second inclined plane (1212) that second shaping surface (63) match, a flanging forming surface (1221) is processed on the auxiliary die (122), the middle part of the lifting platform (5) is sequentially provided with an upright rod (13), a first gas spring (10) and a second gas spring (7) from left to right, a first extrusion surface (131) corresponding to the second extrusion surface (1211) is processed at the lower part of the upright rod (13), a first molding die (9) is fixed at the lower end of the first gas spring (10), a first inclined surface (92) matched with the first molding surface (62) is processed on the first molding die (9), the first forming die (9) also comprises a shoulder (91) protruding towards the right, a pressing die (8) is fixed at the lower end of the second gas spring (7), the pressing die (8) is provided with a leaning groove (81) matched with the shoulder (91), the inner side and the outer side of the lifting platform (5) are also provided with flanging knives (11), and the flanging knives (11) are symmetrically distributed on the inner side and the outer side of the first gas spring (10).

2. The punch-forming device of a semi-finished fastener according to claim 1, wherein: the supporting surface (61) is composed of a horizontal plane and a section of arc surface on the right side of the horizontal plane, and the lower surface of the pressing die (8) is matched with the supporting surface (61).

3. The punch-forming device of a semi-finished fastener according to claim 2, wherein: the bottom die (6) is marked with symmetrical scales or scratches on the right side wall surface.

4. The punch-forming device of a semi-finished fastener according to claim 1, wherein: the width value of the first molding surface (62) and the second molding surface (63) is smaller than the width of a semi-finished buckle (14), and the width of the supporting surface (61) is larger than the width of the semi-finished buckle (14).

5. The punch-forming device of a semi-finished fastener according to claim 1, wherein: the primary mold (121) and the secondary mold (122) are integrally formed, and the second inclined surface (1212) extends toward the secondary mold (122).

6. The punch-forming device of a semi-finished fastener according to claim 5, wherein: the main die (121) is further provided with a second inclined surface I (1213), the second inclined surface I (1213) is consistent with the inclination of the first molding surface (62), and the second inclined surface I (1213) extends towards the auxiliary die (122).