Progressive in-die deep convex hull inclined plane punching device

Abstract

The invention relates to a continuous in-die deep convex hull inclined plane punching device which comprises an upper needle plate, a lower die plate, an upper stripping plate and a punch die set. The punch module comprises a wedge punching arm which is arranged on the lower surface of the upper needle plate and vertically penetrates through the upper stripping plate, and a punch seat which is arranged on the lower surface of the upper stripping plate; the lower die plate is provided with a concave die groove corresponding to the punch seat; stamping inclined planes are arranged on the side walls of the punch seat and the concave die groove; the upper end of the punch seat is provided with an insertion groove matched with the wedge punching arm, and the bottom face of the insertion groove is provided with a sliding groove obliquely facing the punching inclined face. The punch die set further comprises a movable push block arranged in the sliding groove in a sliding mode and matched with the wedge punching arm, a punch body arranged on the movable push block and a reset assembly providing reset force for the movable push block. The lower end of the punch body penetrates through the sliding groove, and a punching cut-in knife edge matched with the punch body is arranged on the punching inclined face of the lower die plate. The whole structure is simple, and bending and punching processes can be synchronously achieved through cooperation of the punch body, the wedge punching arm and the two punching slopes.

Description

Technical Field

[0001] The invention relates to the technical field of stamping molds, in particular to a deep convex bevel punching device in a continuous die. Background Art

[0002] In sheet metal die stamping technology, because of the sharp increase in various costs, it is necessary to automate product production, improve production efficiency and product qualification rate. It is also necessary to reduce the processing flow of products and reduce the handling costs of products. In the sheet metal die stamping example, some hardware with special shapes are processed, such as adding process holes on the inclined surface of sheet metal, or adding bending and forming, etc. According to the conventional processing method, two sets of hardware molds must be opened separately to correspond, one set for bending and forming the inclined surface, and the other set for opening holes on the inclined surface. However, this traditional method has high labor and hardware costs, and cannot further improve the production efficiency and reduce production costs. Therefore, it is necessary to design a convenient and stable device to meet the above needs. Summary of the invention

[0003] The purpose of the present invention is to provide a continuous in-die deep convex bevel punching device to address the deficiencies in the prior art, and the continuous in-die deep convex bevel punching device can well solve the above problems.

[0004] In order to achieve the above requirements, the technical solution adopted by the present invention to solve its technical problems is:

[0005] A device for punching deep convex bevel holes in a continuous die is provided, comprising an upper needle plate and a lower die plate which are opposite to each other, an upper stripping plate arranged below the upper needle plate, and a punch die set arranged below the upper stripping plate; the punch die set comprises an inclined wedge punching arm which vertically penetrates the upper stripping plate downward on the lower surface of the upper needle plate, and a punch seat arranged on the lower surface of the upper stripping plate; a die groove is arranged on the lower die plate corresponding to the punch seat; matching stamping bevels are arranged on the side walls of the punch seat and the die groove; A slot is provided at the upper end for the inclined wedge punching arm to be inserted, and a slide groove is provided on the bottom surface of the slot, which is inclined toward the punching inclined surface; the punch die set also includes a movable push block that is slidably arranged in the slide groove and cooperates with the inclined wedge punching arm for punching, and a punch body is arranged at one end of the movable push block facing the punching inclined surface, and a reset component that provides a reset force for the movable push block; the lower end of the punch body passes through the slide groove, and the stamping inclined surface on the lower template is provided with a punching entry edge that is adapted to the punch body.

[0006] The continuous in-die deep convex bevel punching device of the present invention is characterized in that a guide component for guiding the reciprocating motion of the movable push block is also provided in the slide groove.

[0007] The deep convex bevel punching device in a continuous mold described in the present invention, wherein the guide assembly includes a guide column arranged parallel to the slide groove, and a slider slidably mounted on the guide column; the guide column is fixed on the bottom surface of the slide groove, the outer wall of the slider is slidably matched with the inner wall of the slide groove, the slider is provided with a positioning hole for the punch body to pass through, the movable push block is connected to the slider, and the movable push block is also provided with a first stroke avoidance groove for avoiding the guide column.

[0008] The deep convex bevel punching device in the continuous mold described in the present invention, wherein the reset component includes a strong magnet for adsorbing the movable push block, and the strong magnet is embedded in the first inclined guide surface of the inclined wedge punching arm; when assembled in place, the strong magnet is adsorbed and adhered to the second inclined guide surface of the movable push block.

[0009] The continuous in-mold deep convex bevel punching device described in the present invention, wherein the reset component also includes a long elastic reset unit arranged between the bottom surface of the slide groove and the movable push block, and the bottom surface of the slide groove and the sliding block are respectively provided with positioning grooves for inserting and positioning the two ends of the long elastic reset unit.

[0010] The continuous in-mold deep convex bevel punching device described in the present invention, wherein the long strip elastic reset unit includes two L-shaped and horizontally arranged movable plates, and the lateral ends of the two movable plates are respectively vertically attached to each other's longitudinal ends; the long strip elastic reset unit also includes a reset spring arranged between the lateral ends of the two movable plates; the lateral end is fixed in the positioning groove, and a second travel avoidance groove for reciprocating movement of the longitudinal end is provided on the bottom surface of the positioning groove.

[0011] The deep convex bevel punching device in a continuous mold described in the present invention, wherein the punch seat includes a base body and a movable block horizontally arranged therewith, the side wall of the movable block at one end away from the base body is provided with the stamping bevel; the slide groove is provided on the base body and passes through one end of the base body toward the movable block, the side wall of the movable block at one end facing the base body forms the bottom surface of the slide groove, and the upper stripping plate is also provided with a guide rail parallel to the guide column, and the movable block is slidably arranged on the guide rail.

[0012] The continuous in-die deep convex bevel punching device of the present invention comprises: the side walls of one end adjacent to the movable block and the base body are both bevels, and the bevels are parallel to the first bevel guide surface.

[0013] The continuous in-die deep convex bevel punching device of the present invention comprises a downward convex bevel at the lower end of the base body, and the lower ends of the convex bevel and the movable block are both lower than the lower surface of the upper stripping plate.

[0014] The continuous in-die deep convex bevel punching device of the present invention is characterized in that a horizontal extension portion is provided on the upper portion of one end of the movable block away from the base body, and when assembled in place, the extension portion is tightly fitted against the lower surface of the upper stripping plate.

[0015] The beneficial effects of the present invention are: the overall structure is simple and the cost is low. The bending and punching processes can be realized simultaneously through the cooperation of the punch body, the inclined wedge punching arm and the two punching inclined surfaces, which improves the production efficiency and greatly reduces the cost of hardware equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work:

[0017] Figure 1 It is a longitudinal sectional view of the continuous in-die deep convex bevel punching device of the present invention.

[0018] Figure 2 It is a longitudinal sectional view of the continuous in-die deep convex bevel punching device of the present invention.

[0019] Figure 3 yes Figure 2 A magnified view of the local structure.

[0020] Figure 4 It is a cross-sectional view of the assembly of the long strip elastic reset unit and the slider of the continuous in-die deep convex bevel punching device of the present invention.

[0021] Figure 5 It is a structural diagram of the punch seat of the continuous die deep convex bevel punching device of the present invention. DETAILED DESCRIPTION

[0022] The terms "first", "second", "third" and "fourth" etc. in the specification and claims of the present invention and the drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] "Multiple" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0025] Moreover, the terms "up, down, left, right, upper end, lower end, longitudinal" and the like indicating directions are all based on the posture and position of the device or equipment described in this solution during normal use.

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0027] The continuous in-mold deep convex bevel punching device of the preferred embodiment of the present invention is as follows: Figure 1-5 As shown, the device includes an upper needle plate 10 and a lower template 20 that are opposite to each other, an upper stripping plate 30 arranged below the upper needle plate 10, and a punch die set 40 arranged below the upper stripping plate 30; wherein, an upper die base 50 is fixed to the upper surface of the upper needle plate 10, a lower die base 60 is provided below the lower template, and the upper stripping plate 30 and the upper needle plate 10 are connected by a guide shaft 70 and an upper stripping spring 80.

[0028] Specifically, the punch die assembly 40 includes an inclined wedge punching arm 41 which is arranged on the lower surface of the upper needle plate 10 and vertically penetrates the upper stripping plate 30 downward, and a punch seat 42 which is arranged on the lower surface of the upper stripping plate 30; the inclined wedge punching arm 41 is specifically a rectangular structure and a first inclined guide surface 410 is provided on the side wall of its lower end; a die groove 201 is provided on the lower template 20 corresponding to the punch seat 42, and matching stamping bevels are provided on the side walls of the punch seat 42 and the die groove 201, and the two stamping bevels are used to bend the sheet metal workpiece 500; wherein, the upper end of the punch seat 42 is embedded in the upper stripping plate 30 and is detachably connected thereto. Furthermore, a slot 90 is provided at the upper end of the punch seat 42 for inserting the inclined wedge punching arm 41, the inner wall of the slot 90 is slidably fitted with the outer wall of the inclined wedge punching arm 41, and a slide groove 91 inclined toward the stamping inclined surface is provided on the bottom surface of the slot 90; the punch die set 40 also includes a movable push block 43 slidably arranged in the slide groove 91 and cooperating with the inclined wedge punching arm 41 for punching, and a punch body 44 arranged at one end of the movable push block 43 facing the stamping inclined surface, and a reset component 45 providing a reset force for the movable push block 43; the punch body 44 is columnar and its lower end passes through the bottom surface of the slide groove 91, and the stamping inclined surface 202 on the lower die plate 20 A punching cutting edge 100 adapted to the punch body 44 is provided on it; specifically, the slide groove 91 and the movable push block 43 are both in the shape of a rectangular parallelepiped and their diameters are adapted to each other and can slide relative to each other, and the inclined side wall of the movable push block 43 facing the inclined wedge punching arm 41 is a second inclined guide surface 431. When assembled in place, the first inclined guide surface 410 of the inclined wedge punching arm 41 and the second inclined guide surface 431 of the movable push block 43 fit each other, and then when the inclined wedge punching arm 41 moves downward, the movable push block 43 can be pushed toward the stamping inclined surface, thereby pushing the punch body 44 out of the slide groove 91 and acting on the inclined surface of the sheet metal workpiece 500 to realize the punching operation.

[0029] The overall structure of the device is simple. Compared with the traditional method, only one set of equipment is needed to complete the two processes of bending and punching, and the costs in all aspects can be greatly reduced. Specifically, the bending and punching processes can be realized simultaneously through the cooperation of the punch body 44, the inclined wedge punching arm 41 and the two stamping inclined surfaces, which improves the production efficiency while greatly reducing the cost of hardware equipment.

[0030] In this embodiment, a guide assembly 110 is further provided in the slide groove 91 to provide guidance for the reciprocating motion of the movable push block 43, so as to ensure the stability of the movable push block 43 and the punch body 44; specifically, the guide assembly 110 includes a guide column 111 arranged parallel to the slide groove 91, and a slider 112 slidably sleeved on the guide column 111; the guide column 111 is fixed on the bottom surface of the slide groove 91 and is parallel to the inclined direction of the slide groove 91, and the outer wall of the slider 112 is slidably matched with the inner wall of the slide groove 91; the slider A positioning hole 1120 is provided on 112 for the punch body 44 to pass through, and the movable push block 43 is connected to the slider 112; the movable push block 43 is also provided with a first stroke avoidance groove 433 for avoiding the guide column 111, so that when the movable push block 43 receives the downward thrust of the inclined wedge punching arm 41 and moves into place, the guide column 111 can be inserted into the first stroke avoidance groove 433, which plays a role of guiding, limiting and avoiding, and cooperates with the guide column 111 to further improve the stability of the punch body 44 during punching.

[0031] In this embodiment, the reset component 45 includes a strong magnet 451 for adsorbing the movable push block 43. The strong magnet 451 is embedded in the first inclined guide surface 410 of the inclined wedge stamping arm 41 and is flush with it. Generally, the movable push block 43 and the sliding block 112 are conventional ferromagnetic steel alloys, that is, mold steel; when assembled in place, the strong magnet 451 is adsorbed and adhered to the second inclined guide surface 431 of the movable push block 43, so that the movable push block 43 can move up and down with the inclined wedge stamping arm 41, so as to achieve synchronous downward movement during stamping, and be driven by the inclined wedge stamping arm 41 to reset upward and leave the sheet metal workpiece 500 during resetting.

[0032] In this embodiment, the reset component 45 also includes a long elastic reset unit 452 arranged between the bottom surface of the slide groove 91 and the movable push block 43. The long elastic reset unit 452 is specifically provided with two front horizontal ends arranged side by side at the two ends of the slider 112; the bottom surface of the slide groove 91 and the slider 112 are respectively provided with positioning grooves 120 for inserting and positioning the two ends of the long elastic reset unit, so as to play a role of positioning and fixing. When the inclined wedge stamping arm 41 is reset upward, the slider 112 can be pushed upward by the reverse force of the long elastic reset unit 452, which can further improve the separation speed of the punch body 44 and the sheet metal workpiece 500, ensure the timeliness of the separation, and avoid mold explosion.

[0033] In this embodiment, the long strip elastic reset unit 452 includes two L-shaped and horizontally arranged movable plates 4521, the two movable plates 4521 are parallel to the length direction of the slide groove 91, and the lateral ends a1 of the two movable plates 4521 are respectively vertically fitted on the longitudinal ends a2 of each other to form a U-shaped structure. Specifically, in order to ensure the smoothness of the relative sliding of the two movable plates 4521, a guide protrusion a11 is provided on the end face of the lateral end a1 of the movable plate 4521, and a guide groove a22 adapted to the guide protrusion a11 is provided on the side wall on the inner side of the longitudinal end a2; further, the long strip elastic reset unit 452 also includes a reset spring 4522 arranged between the lateral ends a1 of the two movable plates 4521, and the two ends of the reset spring 4522 are respectively against the two lateral ends a1. Thereby, the two movable plates 4521 can slide relative to each other in the length direction of the slide groove 91; wherein, the lateral end a1 is fixed in the positioning groove 120, and a second stroke avoidance groove 130 for the longitudinal end a2 to reciprocate is provided on the bottom surface of the positioning groove 120, so that when the return spring 4522 is compressed, the distance between the lateral ends a1 of the two movable plates 4521 continues to decrease, thereby avoiding affecting the punching movement of the punch body 44; in addition, the two movable plates 4521 arranged horizontally side by side can also guide and disperse the downward shear force exerted on the punch body 44 and the guide column 111, thereby further improving the stability of the punching and increasing the service life of the punch body 44 and the guide column 111.

[0034] In this embodiment, the punch seat 42 includes a base body 421 and a movable block 422 horizontally parallel thereto, the upper end of the punch seat 42 is embedded in the upper stripping plate 30 and is detachably connected thereto, and the stamping inclined surface 420 of the punch seat 42 is arranged on the side wall of the movable block 422 at one end away from the base body 421; wherein the slide groove 91 is arranged on the base body 421 and passes through one end of the base body 421 toward the movable block 422, and the side wall of the movable block 422 at one end facing the base body 421 is flat and forms a slide groove 91; further, a guide rail 140 parallel to the guide column 111 is provided on the upper stripping plate 30, and a movable block 422 is slidably arranged on the guide rail 140. When the inclined wedge stamping arm 41 is reset upward and the upper stripping plate 30 is reset, the movable block 422 is always against the sheet metal workpiece 500 under the reaction force of the long elastic reset unit 452, thereby providing a sufficient departure stroke for the punch body 44 to leave the sheet metal workpiece 500, thereby ensuring the timeliness of the punch body 44 leaving the punching cutting edge 100.

[0035] In this embodiment, the side walls at one end adjacent to the movable block 422 and the base body 421 are both inclined surfaces, and the inclined surfaces are parallel to the first inclined guide surface 410, so that when the stamping inclined surface 420 on the movable block 422 is against the stamping inclined surface 202 on the lower template 20, a reaction force toward the punch seat 42 can be generated. The reaction force can provide an upward support force for the punch seat 42, thereby reducing the downward deformation displacement of the punch seat 42, and indirectly weakening the shear force on the guide column 111 and the punch body 44.

[0036] In this embodiment, a downward convex hump 150 is provided at the lower end of the base body 421, and the lower ends of the convex hump 150 and the movable block 422 are both lower than the lower surface of the upper stripping plate 30 to achieve adaptation with the die groove 201, wherein a discharge port 160 is provided at the lower end of the punching cutting edge 100 for facilitating the discharge of edge material.

[0037] In this embodiment, a horizontal extension portion 170 is provided on the upper portion of one end of the movable block 422 away from the base body 421. When assembled in place, the extension portion 170 is tightly fitted against the lower surface of the upper release plate 30. Specifically, a receiving groove 180 adapted to the extension portion 170 is provided on the lower surface of the upper release plate 30. When assembled in place, the lower surface of the extension portion is flush with the lower surface of the upper release plate 30.

[0038] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A continuous in-die deep convex bevel punching device, characterized in that: The invention comprises an upper needle plate and a lower template which are opposite to each other, an upper stripping plate arranged below the upper needle plate, and a punch die set arranged below the upper stripping plate; the punch die set comprises an inclined wedge punching arm which vertically penetrates the upper stripping plate downward on the lower surface of the upper needle plate, and a punch seat arranged on the lower surface of the upper stripping plate; a die groove is arranged on the lower template corresponding to the punch seat; the side walls of the punch seat and the die groove are both provided with matching stamping inclined surfaces; the upper end of the punch seat is provided with a wedge for the inclined wedge to be inserted into the punch seat; A slot into which the punching arm is inserted, and a slide groove inclined toward the punching inclined surface is provided on the bottom surface of the slot; the punch die set also includes a movable push block slidably arranged in the slide groove and cooperating with the inclined wedge punching arm for punching, and a punch body arranged at one end of the movable push block facing the punching inclined surface, and a reset component providing a reset force for the movable push block; the lower end of the punch body passes through the slide groove, and the stamping inclined surface on the lower template is provided with a punching entry edge adapted to the punch body.

2. The continuous in-die deep convex bevel punching device according to claim 1, characterized in that: A guide component is also provided in the slide groove to provide guidance for the reciprocating motion of the movable push block.

3. The continuous in-die deep convex bevel punching device according to claim 2, characterized in that: The guide assembly includes a guide column arranged parallel to the slide groove, and a slider slidably mounted on the guide column; the guide column is fixed on the bottom surface of the slide groove, the outer wall of the slider is slidably matched with the inner wall of the slide groove, the slider is provided with a positioning hole for the punch body to pass through, the movable push block is connected to the slider, and the movable push block is also provided with a first stroke avoidance groove for avoiding the guide column.

4. The continuous in-die deep convex bevel punching device according to claim 3, characterized in that: The reset assembly includes a strong magnet for adsorbing the movable push block, and the strong magnet is embedded in the first inclined guide surface of the inclined wedge punching arm; when assembled in place, the strong magnet is adsorbed and adhered to the second inclined guide surface of the movable push block.

5. The continuous in-die deep convex bevel punching device according to claim 4, characterized in that: The reset assembly also includes a long elastic reset unit arranged between the bottom surface of the slide slot and the movable push block. The bottom surface of the slide slot and the slider are respectively provided with positioning grooves for inserting and positioning the two ends of the long elastic reset unit.

6. The continuous in-die deep convex bevel punching device according to claim 5, characterized in that: The long strip elastic reset unit includes two L-shaped and horizontally arranged movable plates, and the lateral ends of the two movable plates are respectively vertically attached to each other's longitudinal ends; the long strip elastic reset unit also includes a reset spring arranged between the lateral ends of the two movable plates; the lateral end is fixed in the positioning groove, and a second travel avoidance groove is provided on the bottom surface of the positioning groove for the reciprocating movement of the longitudinal end.

7. The continuous in-die deep convex bevel punching device according to claim 6, characterized in that: The punch seat includes a base body and a movable block horizontally arranged therewith, and the side wall of the movable block at one end away from the base body is provided with the stamping inclined surface; the slide groove is provided on the base body and passes through one end of the base body toward the movable block, and the side wall of the movable block at one end facing the base body forms the bottom surface of the slide groove, and the upper stripping plate is also provided with a guide rail parallel to the guide column, and the movable block is slidably arranged on the guide rail.

8. The continuous in-die deep convex bevel punching device according to claim 7, characterized in that: The movable block and the side wall at one end adjacent to the base body are both inclined surfaces, and the inclined surfaces are parallel to the first inclined guide surface.

9. The continuous in-die deep convex bevel punching device according to claim 8, characterized in that: The lower end of the base body is provided with a downward convex bump, and the lower end of the convex bump and the movable block are both lower than the lower surface of the upper release plate.

10. The continuous in-die deep convex bevel punching device according to claim 7 or 8, characterized in that The movable block is provided with a horizontal extension portion at the upper portion of one end away from the base body, and when assembled in place, The extension part is tightly fitted against the lower surface of the upper release plate.

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