阅读说明：本技术 一种带有旋转废料刀的冲压模具及其冲压方法 (Stamping die with rotary waste material knife and stamping method thereof ) 是由 唐寅 周文祥 佘方元 于 2021-05-17 设计创作，主要内容包括：本发明涉及冲压件加工技术领域,特别涉及一种带有旋转废料刀的冲压模具及其冲压方法。本发明提供了一种带有旋转废料刀的冲压模具,所述冲压模具包括下模座、下模刀块组件、上模座、上模刀块组件和旋转废料刀组件；所述下模刀块组件包括下模剪边刀块,所述下模剪边刀块位于所述下模座一侧；且所述下模剪边刀块上方设置有上模压料块；所述下模座上固定安装有下模废料刀,所述上模座位于所述下模座正上方,所述上模刀块组件固定安装在所述上模座靠近下模刀块组件壳体的一侧壁上；所述旋转废料刀组件包括旋转废料刀本体,所述旋转废料刀本体位于所述下模废料刀正上方。本发明可提高冲压模具的兼容性,并提升了工作效率。(The invention relates to the technical field of processing of stamping parts, in particular to a stamping die with a rotary waste cutter and a stamping method thereof. The invention provides a stamping die with a rotary waste cutter, which comprises a lower die holder, a lower die cutter block assembly, an upper die holder, an upper die cutter block assembly and a rotary waste cutter assembly, wherein the lower die holder is provided with a lower die; the lower die cutter block assembly comprises a lower die edge-cutting cutter block, and the lower die edge-cutting cutter block is positioned on one side of the lower die seat; an upper die pressing block is arranged above the lower die trimming knife block; the lower die base is fixedly provided with a lower die waste cutter, the upper die base is positioned right above the lower die base, and the upper die cutter block assembly is fixedly arranged on one side wall of the upper die base close to the lower die cutter block assembly shell; the rotary waste cutter assembly comprises a rotary waste cutter body, and the rotary waste cutter body is positioned right above the lower die waste cutter. The invention can improve the compatibility of the stamping die and improve the working efficiency.)

1. The utility model provides a stamping die with rotatory waste material sword which characterized in that: the stamping die comprises a lower die holder (1), a lower die cutter block assembly (3), an upper die holder (5), an upper die cutter block assembly (7) and a rotary waste cutter assembly; the lower die cutter block assembly (3) comprises a lower die edge-cutting cutter block (310), and the lower die edge-cutting cutter block (310) is positioned on one side of the lower die base (1); an upper die pressing block (6) is arranged above the lower die trimming knife block (310); the lower die scrap cutter (2) is fixedly mounted on the lower die base (1), the upper die base (5) is positioned right above the lower die base (1), and the upper die cutter block assembly (7) is fixedly mounted on one side wall of the upper die base (5) close to the shell of the lower die cutter block assembly (3); the rotary scrap cutter assembly comprises a rotary scrap cutter body (14), and the rotary scrap cutter body (14) is positioned right above the lower die scrap cutter (2);

the upper die cutter block assembly (7) comprises a cutter block dust cover (701), a cutter block clamping plate (702), a drawing mechanism, a cutter block mounting plate (707) and a cutter block clamping strip (708); the knife block dust cover (701) is arranged on one side wall of the upper die holder (5); the cutter block clamping and connecting plate (702) is positioned in the cutter block dust cover (701), and a plurality of groups of cutter block clamping and connecting grooves (704) are formed in the side wall, close to the upper die pressing block (6), of the cutter block clamping and connecting plate (702) at equal intervals; one end of the drawing mechanism is fixedly arranged on the cutter block clamping plate (702), and the other end of the drawing mechanism penetrates through the outer part of the cutter block dust cover (701); the knife block mounting plate (707) is positioned in the knife block dust cover (701), and the knife block mounting plate can be movably clamped in any one group of knife block clamping grooves (704) through a knife block clamping strip (708); an upper die trimming cutter block (709) is arranged at the bottom of the cutter block mounting plate (707); the upper die edge shearing cutter block (709) is positioned right above the lower die edge shearing cutter block (310).

2. The stamping die with the rotating scrap cutter of claim 1, wherein: the stamping die further comprises a stamping column (4);

the punching column (4) is fixedly arranged on one side wall of the lower die base (1) far away from the lower die waste cutter (2); the height of the stamping column (4) is higher than that of the lower die waste cutter (2), and a stamping plate (13) is fixedly mounted at the top of the stamping column (4).

3. The stamping die with the rotating scrap cutter of claim 1, wherein: a concave table (10) is fixedly installed on one side wall of the upper die holder (5) far away from the upper die pressing block (6), and the height of the bottom of the concave table (10) is higher than that of the bottom of the upper die holder (5); the bottom edge of one side of the upper die holder (5) close to the concave table (10) is arc-shaped;

the top of the lower die waste cutter (2) is provided with a trimming groove (15); the cutting part of the rotary waste material knife assembly can be movably attached to the edge cutting groove (15).

4. The stamping die with the rotating scrap cutter of claim 2, wherein: two sides of the knife block dust cover (701) are respectively arranged on the upper die pressing block (6) and the upper die base (5), and the bottom of the knife block dust cover (701) and one side wall close to the upper die pressing block (6) are both of an open structure; a stop block (703) is arranged above the cutter block clamping groove (704), one end of the stop block (703) is fixedly arranged on the cutter block clamping plate (702), and the other end of the stop block (703) is movably attached to the side wall of the upper die pressing block (6); the upper die edge shearing cutter block (709) is flush with the cutting part of the lower die cutter block component (3) from top to bottom;

the drawing mechanism comprises a drawing rod (705) and a plurality of groups of drawing springs (706); one end of the pull rod (705) is fixedly arranged on the cutter block clamping plate (702), and the other end of the pull rod penetrates through the outer part of the cutter block dust cover (701); the groups of drawing springs (706) are symmetrically arranged on the upper side and the lower side of the drawing rod (705), and two ends of each drawing spring (706) are respectively arranged on the inner walls of the cutter block clamping plate (702) and the cutter block dust cover (701);

and a group of sanding plates (710) are respectively arranged on two side walls of the upper die edge shearing cutter block (709).

5. A stamping die with a rotating scrap cutter according to claim 2 or 3, wherein: the rotary waste cutter assembly also comprises a hinged support (8), a rotary waste cutter holder (9), a buffer spring (11) and a driving plate (12);

the hinged support (8) is fixedly arranged on the lower surface of the upper die base (5), and the rotary waste knife holder (9) is hinged to the hinged support (8); the buffer spring (11) is positioned on one side, away from the upper die pressing block (6), of the hinged support (8), one end of the buffer spring (11) is installed on the rotary waste tool apron (9), and the other end of the buffer spring is installed on the lower surface of the concave table (10); the driving plate (12) is positioned under the buffer spring (11) and is fixedly arranged on the lower surface of the rotary waste cutter holder (9), and the driving plate (12) can movably abut against the stamping plate (13); the rotary waste cutter body (14) is fixedly arranged at the bottom of one side, close to the upper die pressing block (6), of the rotary waste cutter holder (9), and the rotary waste cutter body (14) can be movably attached to the inside of the trimming groove (15).

6. The stamping die with the rotating scrap cutter of claim 1, wherein: the lower die cutter block assembly (3) further comprises a lower die trimming cutter holder (301), a screw rod (304), a rotating rod (305) and a bevel gear (306);

the lower die trimming knife holder (301) is fixedly arranged on one side wall of the lower die base (1) far away from the punching column (4), and the top of the lower die base (1) and the top of the lower die waste knife (2) are positioned on the same horizontal plane; a cutter block mounting groove (302) is formed in one side wall, close to the lower die base (1), of the top of the lower die trimming cutter holder (301), and the top of the cutter block mounting groove (302) and one side wall, close to the lower die base (1), of the cutter block mounting groove are both of an open structure; an inner cavity (303) is formed in one side, away from the lower die holder (1), of the cutter block mounting groove (302), one end of the screw rod (304) is rotatably connected to the top of the inner cavity (303), and the other end of the screw rod is fixedly connected with the rotating rod (305); the bevel gear (306) is sleeved on the rotating rod (305); a sliding groove (307) is formed in one side wall, close to the cutter block mounting groove (302), of the inner cavity (303), a sliding block (308) is connected in the sliding groove (307) in a sliding mode, and one end of the sliding block (308) is connected to the screw rod (304) in a threaded mode; the other end of the sliding block (308) penetrates into the cutter block mounting groove (302) and is fixedly provided with a cutter block supporting plate (309); and the lower die edge shearing cutter block (310) is fixedly arranged on the cutter block supporting plate (309).

7. The stamping die with the rotating scrap cutter of claim 6, wherein: the lower die cutter block assembly (3) further comprises two groups of threaded sleeves (311), two groups of cutter block limiting plates (313), a bearing seat (314) and a gear adjusting rod (315);

the two groups of threaded sleeves (311) are symmetrically arranged on two side walls of the lower die trimming tool apron (301) perpendicular to the lower die base (1); a thread adjusting rod (312) is connected to the threaded sleeve (311) in an internal thread mode, one end of the thread adjusting rod (312) penetrates into the cutter block mounting groove (302) and is fixedly mounted on the cutter block limiting plate (313), and the cutter block limiting plate (313) can movably abut against the side wall of the lower die trimming cutter block (310); the other end of the threaded adjusting rod (312) penetrates through the outer part of the lower die trimming cutter holder (301), and a first handle is fixedly installed on the threaded adjusting rod; the bearing seat (314) is rotatably installed on one side wall of the lower die trimming tool apron (301), the gear adjusting rod (315) is rotatably connected in the bearing seat (314), one end of the gear adjusting rod (315) penetrates into the inner cavity (303) and is fixedly provided with a bevel gear (316), and the other end of the bevel gear (316) is meshed and connected with the bevel gear (306); the other end of the gear adjusting rod (315) penetrates through the outer portion of the lower die trimming knife holder (301), and a second handle is fixedly mounted on the gear adjusting rod.

8. The stamping die with the rotating scrap cutter of claim 1, wherein: the upper die pressing block (6) is fixedly arranged on one side wall of the knife block dust cover (701) far away from the upper die base (5); and the bottom of the upper die pressing block (6) is higher than the bottom of the upper die trimming cutter block (709).

9. The stamping die with the rotating scrap cutter of claim 1, wherein: a plurality of groups of triangular reinforcing rib plates (16) are symmetrically arranged on two side walls of the lower die waste cutter (2), and the other side wall of the triangular reinforcing rib plate (16) is fixedly arranged on the lower die base (1).

10. The stamping method with the rotary waste material knife stamping die is characterized in that: the stamping method comprises the following steps:

the height of the lower die trimming cutter block is adjusted according to the thickness of the stamping part;

placing a stamping part on the top of a lower die trimming cutter block, and ensuring that one end of the stamping part is positioned on a lower die waste cutter;

the upper die rotary cutter block and the upper die pressing block are driven to descend by the upper die base;

when the upper die rotary waste material knife is attached to the lower die waste material knife, the upper die edge shearing knife block and the lower die edge shearing knife block finish the edge cutting work of the opposite stamping part, and the upper die rotary waste material knife and the lower die waste material knife simultaneously finish the edge shearing work of the circumference of the opposite stamping part.

Technical Field

The invention belongs to the technical field of processing of stamping parts, and particularly relates to a stamping die with a rotary waste cutter and a stamping method thereof.

Background

In the trimming process of the prior art of the stamping die, an upper die trimming knife of the traditional die is fixed, and the knife edge of a waste cutting area is higher than the knife edges of other trimming areas. The shape of the edge cutter has fluctuation, and the cutting-in of the edge is asynchronous during edge cutting.

When trimming, the upper die waste material knife firstly punctures the workpiece, then trims the edge and trims the edge. Debris is generated when the workpiece is pierced and falls onto the exposed surface of the workpiece, thereby scratching the surface of the workpiece. And the quality of the trimmed section of the workpiece is influenced to a certain extent around the cut part. The defects of corner collapse, burrs and the like of the effective molded surface of the punched workpiece corresponding to the position of the waste material cutter can be caused, and the surface quality of the workpiece is seriously influenced.

Go up mould edge-shearing sword piece and belong to the easy-to-wear part, need often dismantle and get off and maintain or change, but among the current stamping die, go up the structure complicacy of mould edge-shearing sword piece, dismouting work is loaded down with trivial details time-consuming, has brought very big inconvenience to the maintenance work in later stage.

Disclosure of Invention

In order to solve the problems, the invention provides a stamping die with a rotary waste cutter, which comprises a lower die holder, a lower die cutter block assembly, an upper die holder, an upper die cutter block assembly and a rotary waste cutter assembly; the lower die cutter block assembly comprises a lower die edge-cutting cutter block, and the lower die edge-cutting cutter block is positioned on one side of the lower die seat; an upper die pressing block is arranged above the lower die trimming knife block; the lower die base is fixedly provided with a lower die waste cutter, the upper die base is positioned right above the lower die base, and the upper die cutter block assembly is fixedly arranged on one side wall of the upper die base close to the lower die cutter block assembly shell; the rotary waste cutter assembly comprises a rotary waste cutter body, and the rotary waste cutter body is positioned right above the lower die waste cutter;

the upper die cutter block assembly comprises a cutter block dust cover, a cutter block clamping plate, a drawing mechanism, a cutter block mounting plate and a cutter block clamping strip; the dust cover of the cutter block is arranged on one side wall of the upper die base; the cutter block clamping and connecting plate is positioned in the cutter block dust cover, and a plurality of groups of cutter block clamping and connecting grooves are formed in the side wall, close to the upper die pressing block, of the cutter block clamping and connecting plate at equal intervals; one end of the drawing mechanism is fixedly arranged on the cutter block clamping plate, and the other end of the drawing mechanism penetrates through the outer part of the cutter block dust cover; the knife block mounting plate is positioned in the knife block dust cover and can be movably clamped in any one group of knife block clamping grooves through a knife block clamping strip; an upper die edge shearing cutter block is mounted at the bottom of the cutter block mounting plate; the upper die edge shearing cutter block is positioned right above the lower die edge shearing cutter block.

Further, the stamping die further comprises a stamping column;

the punching column is fixedly arranged on one side wall of the lower die base, which is far away from the lower die waste cutter; the height of the stamping column is higher than that of the lower die waste cutter, and a stamping plate is fixedly mounted at the top of the stamping column.

Further, a concave table is fixedly installed on one side wall of the upper die holder, which is far away from the upper die pressing block, and the height of the bottom of the concave table is higher than that of the bottom of the upper die holder; the bottom edge of the upper die base close to one side of the concave table is arc-shaped;

the top of the lower die waste cutter is provided with a trimming groove; the cutting portion of the rotating scrap cutter assembly can be movably attached to the trimming groove.

Furthermore, two sides of the dust cover of the knife block are respectively arranged on the upper die pressing block and the upper die base, and the bottom of the dust cover of the knife block and one side wall close to the upper die pressing block are both of an open structure; a stop block is arranged above the cutter block clamping groove, one end of the stop block is fixedly arranged on the cutter block clamping plate, and the other end of the stop block is movably attached to the side wall of the upper die pressing block; the upper die edge shearing cutter block is flush with the cutting part of the lower die cutter block assembly from top to bottom;

the drawing mechanism comprises a drawing rod and a plurality of groups of drawing springs; one end of the pull rod is fixedly arranged on the cutter block clamping plate, and the other end of the pull rod penetrates through the outer part of the cutter block dust cover; the plurality of groups of drawing springs are symmetrically arranged on the upper side and the lower side of the drawing rod, and two ends of each drawing spring are respectively arranged on the inner walls of the cutter block clamping plate and the cutter block dust cover;

and a group of abrasive plates are respectively arranged on two side walls of the upper die edge-shearing cutter block.

Furthermore, the rotary waste cutter assembly also comprises a hinged support, a rotary waste cutter holder, a buffer spring and a driving plate;

the hinged support is fixedly arranged on the lower surface of the upper die base, and the rotary waste knife holder is hinged to the hinged support; the buffer spring is positioned on one side of the hinged support, which is far away from the upper die pressing block, one end of the buffer spring is installed on the rotary waste material cutter holder, and the other end of the buffer spring is installed on the lower surface of the concave table; the driving plate is positioned under the buffer spring and fixedly mounted on the lower surface of the rotary waste cutter holder, and the driving plate can movably abut against the stamping plate; the rotary waste material cutter body is fixedly arranged at the bottom of one side, close to the upper die pressing block, of the rotary waste material cutter holder, and the rotary waste material cutter body is movably attached to the inside of the trimming groove.

Furthermore, the lower die cutter block assembly also comprises a lower die trimming cutter holder, a screw rod, a rotating rod and a bevel gear;

the lower die trimming knife holder is fixedly arranged on one side wall of the lower die holder far away from the punching column, and the top of the lower die holder and the top of the lower die waste knife are positioned on the same horizontal plane; a cutter block mounting groove is formed in one side wall, close to the lower die base, of the top of the lower die trimming cutter holder, and the top of the cutter block mounting groove and one side wall, close to the lower die base, of the cutter block mounting groove are both of an open structure; an inner cavity is formed in one side, away from the lower die holder, of the cutter block mounting groove, one end of the screw rod is rotatably connected to the top of the inner cavity, and the other end of the screw rod is fixedly connected with the rotating rod; the helical gear is sleeved on the rotating rod; a sliding groove is formed in one side wall of the inner cavity, close to the cutter block mounting groove, a sliding block is connected in the sliding groove in a sliding mode, and one end of the sliding block is connected to the screw rod in a threaded mode; the other end of the sliding block penetrates into the cutter block mounting groove, and a cutter block supporting plate is fixedly mounted on the other end of the sliding block; the lower die edge shearing knife block is fixedly arranged on the knife block supporting plate.

Furthermore, the lower die cutter block assembly also comprises two groups of threaded sleeves, two groups of cutter block limiting plates, a bearing seat and a gear adjusting rod;

the two groups of threaded sleeves are symmetrically arranged on two side walls of the lower die trimming tool apron, which are vertical to the lower die base; a thread adjusting rod is connected with the thread sleeve in an internal thread mode, one end of the thread adjusting rod penetrates into the cutter block mounting groove and is fixedly mounted on the cutter block limiting plate, and the cutter block limiting plate can movably abut against the side wall of the lower die trimming cutter block; the other end of the threaded adjusting rod penetrates through the outer part of the lower die trimming cutter holder and is fixedly provided with a first handle; the bearing seat is rotatably installed on one side wall of the lower die trimming tool apron, the gear adjusting rod is rotatably connected in the bearing seat, one end of the gear adjusting rod penetrates into the inner cavity and is fixedly provided with a bevel gear, and the other end of the bevel gear is meshed and connected with the bevel gear; the other end of the gear adjusting rod penetrates through the outer portion of the lower die trimming knife holder, and a second handle is fixedly mounted on the gear adjusting rod.

Further, the upper die pressing block is fixedly arranged on one side wall of the knife block dust cover far away from the upper die base; and the bottom of the upper die material pressing block is higher than the bottom of the upper die trimming knife block.

Furthermore, a plurality of groups of triangular reinforcing rib plates are symmetrically arranged on two side walls of the lower die waste cutter, and the other side wall of the triangular reinforcing rib plate is fixedly arranged on the lower die base.

Further, the stamping method comprises the following steps:

the height of the lower die trimming cutter block is adjusted according to the thickness of the stamping part;

placing a stamping part on the top of a lower die trimming cutter block, and ensuring that one end of the stamping part is positioned on a lower die waste cutter;

the upper die rotary cutter block and the upper die pressing block are driven to descend by the upper die base;

when the upper die rotary waste material knife is attached to the lower die waste material knife, the upper die edge shearing knife block and the lower die edge shearing knife block finish the edge cutting work of the opposite stamping part, and the upper die rotary waste material knife and the lower die waste material knife simultaneously finish the edge shearing work of the circumference of the opposite stamping part.

The invention has the beneficial effects that:

1. pulling the pulling rod in the opposite direction of the dust cover of the knife block can move the knife block clamping plate in the same direction, so that the knife block clamping groove loses the limiting effect on the knife block clamping strip. And then the upper die edge shearing cutter block is directly taken out from the lower part. The dismouting process is simple swift, is convenient for go up the later maintenance of mould trimming sword piece.

2. Through the gear adjusting rod, the bevel gear and the bevel gear are driven to rotate through the gear adjusting rod, and then the lead screw is driven to rotate through the bevel gear, so that the sliding block can be lifted. The height adjusting function of the cutter block supporting plate and the lower die edge shearing cutter block is realized. For stamping parts of different specifications, the lower die edge shearing cutter block can realize edge shearing work, and the compatibility of the stamping die is improved. Meanwhile, the pull rod is pulled to lift or lower the cutter block clamping strip and clamp the cutter block clamping strip in different cutter block clamping grooves, so that the height of the upper mold edge shearing cutter block can be adjusted. The adjusting interval of the distance between the upper die edge-shearing cutter block and the lower die edge-shearing cutter block is increased. Further enriching the compatibility of the stamping die.

3. After the upper die edge shearing cutter block finishes the edge cutting operation of the stamping part, the upper die edge shearing cutter block can continuously descend for a certain distance, and two side walls of the upper die edge shearing cutter block respectively perform sliding friction with two side end faces at the position of the notch of the stamping part. Through setting up two sets of dull polish boards on last mould trimming cutter piece both sides wall, can polish punching press die incision department both sides terminal surface, avoid incision department terminal surface to have the residue of piece or lug, need not additionally to increase the edging process, improved work efficiency.

4. The waste material cutter is rotated to cut edges and realize full-periphery edge cutting, extra full-periphery edge cutting is not needed, working steps are reduced, working time is shortened, and working cost is reduced.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 illustrates an isometric view of a stamping die according to an embodiment of the invention;

FIG. 2 shows a schematic structural diagram of a stamping die according to an embodiment of the invention;

FIG. 3 shows a schematic structural view of a lower die cutter block assembly according to an embodiment of the invention;

FIG. 4 shows a schematic cross-sectional view of a lower die cutter block assembly according to an embodiment of the invention;

FIG. 5 shows a schematic top cross-sectional view of a lower die cutter block assembly according to an embodiment of the invention;

FIG. 6 shows a schematic structural view of an upper die cutter block assembly according to an embodiment of the present invention;

FIG. 7 shows a schematic cross-sectional view of an upper die cutter block assembly according to an embodiment of the invention;

fig. 8 shows a schematic structural diagram of an upper die edge trimmer block according to an embodiment of the present invention.

In the figure: 1. a lower die holder; 2. a lower die scrap cutter; 3. a lower die cutter block assembly; 301. a lower die trimming cutter holder; 302. a knife block mounting groove; 303. an inner cavity; 304. a screw rod; 305. a rotating rod; 306. a helical gear; 307. a chute; 308. a slider; 309. a cutter block supporting plate; 310. a lower die edge-cutting knife block; 311. a threaded sleeve; 312. a threaded adjusting rod; 313. a cutter block limiting plate; 314. a bearing seat; 315. a gear adjusting rod; 316. a bevel gear; 4. punching the column; 5. an upper die holder; 6. an upper die pressing block; 7. an upper die cutter block assembly; 701. a dust cover for the knife block; 702. the cutter block clamping and connecting plate; 703. a stop block; 704. the cutter block is clamped in the groove; 705. a pull rod; 706. drawing the spring; 707. a knife block mounting plate; 708. the cutter block is clamped with the strip; 709. an upper die edge-shearing cutter block; 710. sanding a plate; 8. hinging seat; 9. rotating the waste knife holder; 10. a concave platform; 11. a buffer spring; 12. a drive plate; 13. stamping the plate; 14. rotating the scrap cutter body; 15. cutting an edge groove; 16. a triangular reinforcing rib plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention provides a stamping die with a rotary waste cutter. The stamping die comprises a lower die holder 1, a lower die cutter block component 3, an upper die holder 5, an upper die pressing block 6, an upper die cutter block component 7 and a rotary scrap cutter component. Illustratively, as shown in fig. 1 and 2, the lower die cutter block assembly 3 is fixedly mounted on a side wall of the lower die holder 1. The lower die cutter block component 3 is used for trimming of the stamping parts.

The lower die base 1 is fixedly provided with a lower die waste cutter 2, and the top of the lower die waste cutter 2 is flush with the top of the shell of the lower die cutter block component 3. And the top of the lower die waste material cutter 2 is provided with a trimming groove 15. The lower die waste cutter 2 is used for the full-periphery trimming work of stamping parts.

The upper die holder 5 is positioned right above the lower die holder 1, and the upper die cutter block assembly 7 is fixedly installed on one side wall of the upper die holder 5, which is close to the shell of the lower die cutter block assembly 3. The cutting part of the upper die cutter block assembly 7 is positioned right above the cutting part of the lower die cutter block assembly 3. And the upper die cutter block assembly 7 is used for matching with the lower die cutter block assembly 3 to carry out the trimming work of the stamping part.

Go up mould press block 6 fixed mounting go up mould knife block subassembly 7 casing and keep away from on the lateral wall of upper die base 5, just go up mould press block 6 bottom height and be higher than go up the bottom height of mould knife block subassembly 7.

A concave table 10 is fixedly installed on one side wall, far away from the upper die pressing block 6, of the upper die base 5, and the height of the bottom of the concave table 10 is higher than that of the bottom of the upper die base 5. And the edge of the bottom of the upper die holder 5 close to one side of the concave table 10 is arc-shaped.

The rotary waste material knife assembly is fixedly arranged at the bottom of the upper die base 5, and the cutting part of the rotary waste material knife assembly can be movably attached to the edge cutting groove 15. The rotary waste material knife assembly is used for matching with the lower die waste material knife 2 to carry out full-periphery trimming work on the stamping part.

A stamping column 4 is fixedly mounted on one side wall, far away from the lower die waste material knife 2, of the lower die holder 1, the height of the stamping column 4 is higher than that of the lower die waste material knife 2, and a stamping plate 13 is fixedly mounted at the top of the stamping column 4.

A plurality of groups of triangular reinforcing rib plates 16 are symmetrically arranged on two side walls of the lower die waste cutter 2, and the other side wall of the triangular reinforcing rib plate 16 is fixedly arranged on the lower die base 1.

The rotating scrap cutter assembly comprises a hinge support 8, a rotating scrap cutter holder 9, a buffer spring 11 and a driving plate 12. The hinged support 8 is fixedly arranged on the lower surface of the upper die base 5, and the rotary waste knife holder 9 is hinged on the hinged support 8. Buffer spring 11 is located one side that mould briquetting 6 was pressed to the free bearing 8 was kept away from, buffer spring 11 one end is installed on rotatory waste material blade holder 9, and the other end is installed on the lower surface of concave station 10. The driving plate 12 is located under the buffer spring 11 and is fixedly mounted on the lower surface of the rotary waste cutter holder 9, and the driving plate 12 can movably abut against the stamping plate 13. The bottom of one side of the rotary waste cutter holder 9 close to the upper die pressing block 6 is provided with a rotary waste cutter body 14, and the rotary waste cutter body 14 can be movably attached to the inside of the trimming groove 15.

When the punching operation is performed, the upper die holder 5 descends and drives the driving plate 12 to descend, and when the driving plate 12 abuts against the punching plate 13, the side, close to the concave table 10, of the rotary waste knife holder 9 stops descending and extrudes the buffer spring 11. Meanwhile, the other end of the rotary waste cutter holder 9 starts to rotate around the hinge base 8, and drives the rotary waste cutter body 14 to descend, so that the stamping part starts to be cut at the full periphery. When the rotary waste cutter body 14 is attached to the bottom of the trimming groove 15, the full-circumference trimming work is completed. Through rotatory waste material sword body 14 realized whole circumference trimming when the side cut work, need not extra whole circumference trimming work, reduced work step, promoted work efficiency.

The lower die cutter block assembly 3 comprises a lower die trimming blade holder 301, a screw rod 304, a rotating rod 305 and a bevel gear 306. Illustratively, as shown in fig. 3 and 4, the lower die trimming blade holder 301 is fixedly mounted on a side wall of the lower die holder 1 away from the punching column 4, and the top of the lower die holder 1 and the top of the lower die scrap cutter 2 are located on the same horizontal plane. A knife block mounting groove 302 is formed in one side wall, close to the lower die holder 1, of the top of the lower die trimming knife holder 301, and the top of the knife block mounting groove 302 and one side wall, close to the lower die holder 1, of the knife block mounting groove are both of an open structure. An inner cavity 303 is formed in one side, away from the lower die holder 1, of the knife block mounting groove 302, one end of the screw rod 304 is rotatably connected to the top of the inner cavity 303, and the other end of the screw rod is fixedly connected with the rotating rod 305. The bevel gear 306 is sleeved on the rotating rod 305. A sliding groove 307 is formed in one side wall of the inner cavity 303 close to the cutter block mounting groove 302, a sliding block 308 is connected in the sliding groove 307 in a sliding mode, and one end of the sliding block 308 is connected to the screw rod 304 in a threaded mode. The other end of the sliding block 308 penetrates into the cutter block mounting groove 302, and a cutter block supporting plate 309 is fixedly mounted on the sliding block. A lower edge-cutting knife block 310 is fixedly mounted on the knife block supporting plate 309, and one side wall of the lower edge-cutting knife block 310, which is close to the lower die holder 1, is flush with the lower edge-cutting knife holder 301.

The lower die cutter block component 3 further comprises two groups of threaded sleeves 311, two groups of cutter block limiting plates 313, a bearing seat 314 and a gear adjusting rod 315. For example, as shown in fig. 5, two sets of threaded sleeves 311 are symmetrically installed on two side walls of the lower die trimming blade holder 301 perpendicular to the lower die holder 1. Threaded sleeve 311 threaded connection has screw thread adjusting rod 312, screw thread adjusting rod 312 one end run through to in the sword piece mounting groove 302, and fixed mounting be in on the sword piece limiting plate 313, sword piece limiting plate 313 is movable to be contradicted on the lateral wall of lower mould trimming sword piece 310. The other end of the threaded adjusting rod 312 penetrates through the outer part of the lower die trimming knife holder 301, and a first handle is fixedly installed on the threaded adjusting rod. The bearing seat 314 is rotatably installed on one side wall of the lower die trimming blade holder 301, the gear adjusting rod 315 is rotatably connected in the bearing seat 314, one end of the gear adjusting rod 315 penetrates into the inner cavity 303 and is fixedly installed with a bevel gear 316, and the other end of the bevel gear 316 is meshed and connected with the bevel gear 306. The other end of the gear adjusting rod 315 penetrates through the outer portion of the lower die trimming knife holder 301, and a second handle is fixedly mounted on the gear adjusting rod.

In order to ensure the normal cutting of the upper die cutter block assembly 7 and the lower die trimming cutter block 310, the distance from the upper die cutter block assembly 7 to the stamping part is always in a proper range. The height of the lower die trimming blade block 310 needs to be adjusted according to the thickness of the stamping part. The bevel gear 316 and the bevel gear 306 are driven to rotate by rotating the gear adjusting rod 315, and the lead screw 304 is driven to rotate by the bevel gear 306, so that the sliding block 308 can be lifted. The height adjustment function of the cutter block support plate 309 and the lower die edge-shearing cutter block 310 is realized. For stamping parts of different specifications, the lower die edge shearing cutter block 310 can realize edge shearing work, and compatibility of the stamping die is improved.

After the height of the lower die trimming cutter block 310 is adjusted, the two sets of threaded adjusting rods 312 are rotated, so that the threaded adjusting rods 312 are in threaded connection with the threaded sleeves 311, the cutter block limiting plates 313 are pushed to move towards the lower die trimming cutter block 310 and finally abut against the side edges of the lower die trimming cutter block 310, the stability of the lower die trimming cutter block 310 is improved, and the lower die trimming cutter block cannot be changed in height due to the stamping kinetic energy of the upper die pressing block 6.

The upper die cutter block assembly 7 comprises a cutter block dust cover 701, a cutter block clamping plate 702, a drawing rod 705 and a plurality of groups of drawing springs 706. For example, as shown in fig. 6 and 7, two sides of the dust cover 701 are respectively installed on the upper die pressing block 6 and the upper die holder 5, and the bottom of the dust cover 701 and a side wall close to the upper die pressing block 6 are both open structures. The cutter block clamping and connecting plate 702 is located in the cutter block dust cover 701, and a plurality of cutter block clamping and connecting grooves 704 are formed in the cutter block clamping and connecting plate 702, close to one side wall of the upper mold pressing block 6, at equal intervals. The knife block clamping groove 704 is provided with a stopping block 703 above, one end of the stopping block 703 is fixedly installed on the knife block clamping plate 702, and the other end is movably attached to the side wall of the upper die pressing block 6. One end of the drawing rod 705 is fixedly installed on the blade block clamping plate 702, and the other end of the drawing rod penetrates through the outer part of the blade block dust cover 701. A plurality of groups of drawing springs 706 are symmetrically arranged on the upper side and the lower side of the drawing rod 705, and two ends of the drawing springs 706 are respectively arranged on the inner walls of the blade clamping plate 702 and the blade dust cover 701. The bottom surface of the knife block dust cover 701 is flush with the bottom surface of the upper die pressing block 6.

The upper die cutter block assembly 7 further comprises a cutter block mounting plate 707, a cutter block clamping strip 708 and an upper die edge-cutting cutter block 709. Illustratively, as shown in fig. 8, the knife block mounting plate 707 is located in the knife block dust cover 701, one end of the knife block clamping strip 708 is fixedly mounted on a side wall of the knife block mounting plate 707 near the knife block clamping plate 702, and the other end is movably clamped in any one set of the knife block clamping grooves 704. The bottom of the knife block mounting plate 707 penetrates below the knife block dust cover 701 and is fixedly connected with the upper die edge cutting knife block 709. Go up mould edge-shearing cutter block 709 with lower mould edge-shearing cutter block 310 parallel and level, just it is provided with a set of dull polish board 710 on the both sides wall of edge-shearing cutter block 709 respectively to go up the mould.

The pull rod 705 is pulled in the opposite direction of the knife block dust cover 701, so that the knife block clamping plate 702 can move in the same direction, and the knife block clamping groove 704 loses the limiting effect on the knife block clamping strip 708. And then the upper die edge shearing cutter block 709 is directly taken out from the lower part. The dismouting process is simple swift, is convenient for go up the later maintenance of mould trimming sword piece 709.

And the pull rod 705 is pulled, and simultaneously, the cutter block clamping strip 708 is lifted or lowered and clamped in different cutter block clamping grooves 704, so that the height of the upper mold edge cutting cutter block 709 can be adjusted. The adjustment interval of the distance between the upper die edge-cutting cutter block 709 and the lower die edge-cutting cutter block 310 is increased. Further enriching the compatibility of the stamping die.

After the upper die edge-shearing cutter block 709 finishes the edge-shearing operation of the stamping part, the upper die edge-shearing cutter block 709 can continuously descend for a certain distance, and two side walls of the upper die edge-shearing cutter block 709 respectively perform sliding friction with two side end faces at the notch of the stamping part. Through setting up two sets of dull polish boards 710 on last mould trimming sword piece 709 both sides wall, can polish punching press cut department both sides terminal surface, avoid cut department terminal surface to have the residue of piece or lug, need not additionally to increase the edging process, improved work efficiency.

According to the stamping die provided by the embodiment, the embodiment of the invention provides a stamping die stamping method with a rotary scrap cutter, and the stamping method comprises the following steps:

the height of the lower die trimming cutter block is adjusted according to the thickness of the stamping part;

placing a stamping part on the top of a lower die trimming cutter block, and ensuring that one end of the stamping part is positioned on a lower die waste cutter;

starting a driving system of the upper die holder, and driving the upper die rotary cutter block and the upper die pressing block to descend through the upper die holder;

when the upper die pressing block descends to the position where the stamping parts are attached, the upper die edge-shearing cutter block and the lower die edge-shearing cutter block complete cutting of the stamping parts, and the upper die waste material cutter rotates to complete cutting of corners of the stamping parts at the same time.

In an exemplary manner, in the initial stage, the height difference from the top surface of the lower die trimming cutter block to the top surface of the lower die trimming cutter holder is A1; the height difference from the bottom of the upper die edge shearing cutter block to the top of the lower die edge shearing cutter block is B1, and the thickness of a machined part is C1; after the workpiece is placed on the upper die edge-shearing blade block, in order to ensure the kinetic energy of the upper die edge-shearing blade block during the punching operation, the height a1 of the lower die edge-shearing blade block needs to be adjusted downward by the distance of C1, so as to ensure that the distance from the lower die edge-shearing blade block to the upper die edge-shearing blade block is always kept at B1.

And then, a driving system of the upper die base is started, and the upper die trimming cutter block and the upper die pressing block are driven to descend by the upper die base.

According to different stages of punching work, the distance difference between the rotary scrap cutter and the lower die scrap cutter can be divided into three groups of D1, D2 and D3, wherein D1 is more than D2 is more than D3, and D3 is equal to 0;

and when the distance difference is smaller than D1 and larger than D2, the upper die pressing block is attached to the stamping part, and the upper die edge shearing knife block is attached to the upper surface of the stamping part and arranged for edge shearing.

When the distance difference is smaller than D2 and larger than D3, the driving plate is attached to the punching plate, so that one end of the rotary waste cutter holder close to the concave table is pushed to lift up, the buffer spring begins to be extruded, meanwhile, the other end of the rotary waste cutter holder begins to rotate around the hinged support, the rotary waste cutter body is driven to descend, and the punching piece begins to be cut.

When the distance difference is equal to D3, the rotary waste material knife body finishes cutting the workpiece and is attached to the lower die waste material knife, and the stamping part is cut completely.

The rotary waste material cutter realizes full-periphery trimming while trimming, so that extra full-periphery trimming is not needed, working steps are reduced, and the working efficiency is improved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.