Floating pin and stamping die

Abstract

The utility model discloses a buoyancy lift pin and a stamping die, and belongs to the technical field of dies. The buoyancy lift pin comprises a fixing part and a dismounting and replacing part, the fixing part is connected to an external structure, the dismounting and replacing part is located above the fixing part, the dismounting and replacing part is detachably connected with the fixing part, the dismounting and replacing part is provided with a material guiding groove for a material belt to penetrate through, and different dismounting and replacing parts are provided with material guiding grooves with different groove depths. Compared with an integrated buoyancy lifting pin in the prior art, the buoyancy lifting pin is of a split structure, and the material guide grooves with different groove depths can be matched with material belts with different width sizes, so that the replacement parts matched with the material belts with different width sizes can be selected according to the material belts with different width sizes, the universality is high, and replacement and maintenance are convenient and fast; and on the premise that the whole set of die is not replaced, rapid conversion production of multi-size large-tolerance material belts can be achieved, the production efficiency is high, and the production cost is low. The stamping die comprises the buoyancy lift pin, is suitable for machining material belts of various width sizes, and is high in production efficiency and low in production cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to die technical field especially relates to float lift pin and stamping die. BACKGROUND

[0002] The float lift pin is a kind of die accessory installed on stamping die and used for guiding.The prior art stamping die mainly includes upper die, lower die, punch and float lift pin, when product is formed by stamping and then material is removed, float lift pin is often used for guiding material and removing material, that is, the material belt can be conveyed along the feeding direction smoothly by the up-down floating of float lift pin to correct the deviation of material belt.For this purpose, annular material guiding groove is arranged on float lift pin, and the material belt passes through the material guiding groove, so that float lift pin can not only float material, but also guide the transmission of material belt.

[0003] There are many types of float lift pins, including T-shaped float lift pin, cross-shaped float lift pin, plastic float lift pin and plastic steel float lift pin.The float lift pin used in the existing hardware die is an integral structure float lift pin customized according to the die size and hardware product size, and the width of the material belt, which has the following disadvantages: only suitable for material belt with fixed width size, cannot be used when the width of the material belt changes, needs to replace a complete set of die, high production cost, poor universality, and the steps of disassembling and assembling the die are complicated, time-consuming and laborious, resulting in low production efficiency.

[0004] Therefore, it is urgent to design a float lift pin and stamping die to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0005] One purpose of the utility model is to provide a float lift pin, which is suitable for the production and processing of material belts with various width sizes, and is convenient and fast to replace and maintain.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The float lift pin comprises:

[0008] A fixed part connected to an external structure; and

[0009] A replacement part located above the fixed part, and the replacement part is detachably connected to the fixed part, the replacement part is provided with a material guiding groove for the material belt to pass through, and different replacement parts have the material guiding grooves with different groove depths.

[0010] As a preferred technical solution of the above float lift pin, the replacement part is inserted into the fixed part.

[0011] As a preferred technical solution of the above float lift pin, one of the replacement part and the fixed part is provided with a mounting column, and the other is provided with an insertion slot, and the mounting column and the insertion slot are inserted and matched.

[0012] As the preferred technical scheme of the floating pin, the cross section of the mounting column and the insertion slot is circular or polygonal.

[0013] As the preferred technical scheme of the floating pin, the detachable part and the fixed part are threadedly connected.

[0014] As the preferred technical scheme of the floating pin, one of the detachable part and the fixed part is provided with a screw rod, and the other is provided with a threaded hole, and the screw rod and the threaded hole are threadedly connected.

[0015] As the preferred technical scheme of the floating pin, the material guiding groove is an annular groove or a "C" shaped groove.

[0016] As the preferred technical scheme of the floating pin, the detachable part is in a cylindrical structure, and the detachable part comprises a first part, a second part and a third part connected in sequence, and the diameter of the second part is smaller than the diameters of the first part and the third part, so as to form the annular material guiding groove.

[0017] As the preferred technical scheme of the floating pin, there is a gap between the mounting plane of the detachable part and the mounting plane of the fixed part.

[0018] Another purpose of the utility model is to provide a stamping die which is suitable for processing material belts of various width sizes and has high production efficiency.

[0019] To achieve the purpose, the utility model adopts the following technical scheme.

[0020] A stamping die comprises the floating pin, and the fixed part of the floating pin is mounted on the lower die of the stamping die.

[0021] The floating pin comprises a fixed part and a detachable part, the fixed part is connected to an external structure, the detachable part is located above the fixed part, and the detachable part is detachably connected to the fixed part, a material guiding groove for the material belt to pass through is formed in the detachable part, and different detachable parts have material guiding grooves with different groove depths. Compared with the integrated floating pin in the prior art, the floating pin has a split structure, and the material guiding grooves with different groove depths can be matched with material belts of different width sizes, so that the detachable part matched with the material belt of different width size can be selected, the universality is high, the replacement and maintenance are convenient and fast, the rapid conversion production of material belts of multiple sizes and large tolerances can be realized without replacing the whole die, the production efficiency is high, and the production cost is low.

[0022] The stamping die comprises the floating pin, and the fixed part of the floating pin is mounted on the lower die of the stamping die. The stamping die is suitable for processing material belts of various width sizes, has high production efficiency, and is low in production cost. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic view of the levitation pin provided by the embodiment of the present application;

[0024] Figure 2 is a structural schematic view of the levitation pin and the material belt provided by the embodiment of the present application.

[0025] In the drawings:

[0026] 1, fixed part;

[0027] 2, dismounting part; 21, first part; 22, second part; 23, third part;

[0028] 100, levitation pin; 200, material belt. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purpose, features and advantages of the present application more apparent, obvious and understandable, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0032] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0034] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0035] The present embodiment provides a floating pin 100, as shown in Figure 1 and Figure 2 The floating pin 100 includes a fixed part 1 and a replacement part 2, the fixed part 1 is connected to an external structure, for example, mounted on the lower die of the stamping die, the replacement part 2 is located above the fixed part 1, and the replacement part 2 is detachably connected with the fixed part 1, the replacement part 2 is provided with a guide groove for the feed belt 200 to pass through, and different replacement parts 2 have guide grooves with different groove depths.

[0036] Compared with the integral floating pin 100 in the prior art, the floating pin 100 is a split structure, and the material guide grooves with different groove depths can be matched with material belts 200 with different width sizes, so that the replacement part 2 matched with the material belt 200 with different width sizes can be selected, the versatility is high, the replacement and maintenance are convenient and fast, the production of the material belt 200 with multiple sizes and large tolerances can be quickly converted without replacing the whole mold, the production efficiency is high, and the production cost is low. It can be understood that the material guide groove is a groove structure that is recessed from the outer side wall of the floating pin 100 to the inner side. The groove depth of the material guide groove refers to the depth of the groove recessed from the outer side wall of the floating pin 100 to the inner side. The groove depth of the material guide groove is designed according to the width of the material belt 200, and the embodiment is not limited.

[0037] The connection mode between the fixed part 1 and the replacement part 2 can be, but is not limited to, the following two modes. In actual production, other detachable connection modes can also be selected according to actual conditions.

[0038] The first connection mode is that the replacement part 2 is inserted into the fixed part 1. The detachable connection mode of insertion is convenient and fast to assemble and disassemble, saves time and effort, and is beneficial to improve production efficiency.

[0039] Specifically, one of the replacement part 2 and the fixed part 1 is provided with a mounting column, and the other is provided with an insertion slot. The mounting column and the insertion slot are inserted and matched. In the embodiment, the replacement part 2 is provided with a mounting column, and the fixed part 1 is provided with an insertion slot. The mounting column is arranged at the center position of the replacement part 2, and the insertion slot is arranged at the center position of the fixed part 1. That is, the extension direction of the mounting column is parallel to the central axis direction of the replacement part 2, and the extension direction of the insertion slot is parallel to the central axis direction of the fixed part 1. The floating pin 100 in the embodiment is a cylindrical structure, that is, the replacement part 2 and the fixed part 1 are both cylindrical structures, the mounting column is arranged at the center of the replacement part 2, and the insertion slot is arranged at the center of the fixed part 1. After the two are connected, the replacement part 2 and the fixed part 1 are coaxially arranged.

[0040] The cross sections of the mounting column and the insertion slot are the same, and are circular or polygonal. When the cross sections of the mounting column and the insertion slot are circular, it is convenient for processing. The diameters of the mounting column and the insertion slot are the same, which can prevent the mounting column from shaking in the insertion slot. When the cross sections of the mounting column and the insertion slot are polygonal, the two can be assembled to prevent rotation, that is, to prevent the mounting column from rotating circumferentially with the insertion slot, thereby improving the assembly stability of the two. The polygon can be a triangle, a rectangle or other polygons, which can be designed according to actual conditions.

[0041] The second connection mode is that the replacement part 2 is threadedly connected with the fixed part 1. The threaded connection mode is also very convenient to disassemble and assemble, and has higher connection reliability.

[0042] Specifically, one of the replacement part 2 and the fixed part 1 is provided with a screw rod, and the other is provided with a threaded hole, and the screw rod and the threaded hole are threadedly connected. In this embodiment, the replacement part 2 is provided with a screw rod, and the fixed part 1 is provided with a threaded hole. The screw rod is arranged at the center position of the replacement part 2, and the threaded hole is arranged at the center position of the fixed part 1. That is, the extension direction of the screw rod is parallel to the central axis direction of the replacement part 2, and the extension direction of the threaded hole is parallel to the central axis direction of the fixed part 1. The floating pin 100 in this embodiment is a cylindrical floating pin 100, that is, the replacement part 2 and the fixed part 1 are both cylindrical structures, the screw rod is arranged at the center of the replacement part 2, the threaded hole is arranged at the center of the fixed part 1, and after the two are connected, the replacement part 2 and the fixed part 1 are coaxially arranged.

[0043] The material guiding groove is an annular groove or a "C" shaped groove. The material guiding groove in this embodiment is an annular groove, which is convenient to process and form under the premise that the floating pin 100 is a cylindrical floating pin 100.

[0044] As shown in Figure 1 The replacement part 2 in this embodiment includes a first part 21, a second part 22 and a third part 23 connected in sequence, and the diameter of the second part 22 is smaller than that of the first part 21 and the third part 23, that is, the diameter of the second part 22 is the smallest, so as to form an annular material guiding groove between the first part 21 and the third part 23. In order to reduce the processing difficulty, the first part 21, the second part 22 and the third part 23 are coaxially arranged, and a lathe is used for processing during manufacturing.

[0045] Further, the diameters of the first part 21, the third part 23 and the fixed part 1 are the same, which is convenient for processing and manufacturing.

[0046] There is a gap between the mounting plane of the replacement part 2 and the mounting plane of the fixed part 1. In order to realize this structure, the depth of the threaded hole can be designed to realize it, and the insertion depth of the mounting column can be limited by arranging a stepped surface in the insertion slot.

[0047] This embodiment also provides a stamping die suitable for processing material belts 200 of various width sizes, which has high production efficiency and low production cost.

[0048] The stamping die includes an upper die, a lower die and a floating pin 100, two floating grooves extending in the feeding direction of the die and vertically arranged on the lower die at intervals in the direction perpendicular to the feeding direction, and an avoidance groove corresponding to the floating groove opposite to the avoidance groove on the upper die. When the upper die is downwardly stamped, the head of the floating pin 100 is located in the avoidance groove. A plurality of floating pins 100 are arranged in the floating grooves and connected to the lower die through springs, and the floating pins 100 can move vertically along the floating grooves and move into or out of the avoidance groove. The material guiding grooves of the two rows of floating pins 100 are arranged opposite to each other to ensure the horizontal conveying of the material belt 200. When guiding the material,Figure 2 As shown, the two side edges of the material strip 200 in the width direction are respectively embedded into the material guiding grooves of the two rows of floating pins 100, and the vertical movement of the two rows of floating pins 100 matches the material to correct and guide the material and make it be conveyed along the feeding direction.

[0049] It should be noted that the above are only preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present application is not limited to the specific embodiments herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A levitation pin, characterized by, It comprises: a fixed part (1) connected to an external structure; and, a replaceable part (2) located above the fixed part (1) and detachably connected to the fixed part (1), the replaceable part (2) being provided with a material guiding groove through which a material belt (200) passes, different replaceable parts (2) having different groove depths of the material guiding groove to adapt to different width sizes of the material belt (200).

2. The levitation pin according to claim 1, wherein the replaceable part (2) is inserted into the fixed part (1).

3. The levitation pin according to claim 2, wherein one of the replaceable part (2) and the fixed part (1) is provided with a mounting column, and the other is provided with an insertion slot, the mounting column and the insertion slot being inserted and matched.

4. The levitation pin according to claim 3, wherein the mounting column and the insertion slot are circular or polygonal in cross section.

5. The levitation pin according to claim 1, wherein the replaceable part (2) is threadedly connected to the fixed part (1).

6. The levitation pin according to claim 5, wherein one of the replaceable part (2) and the fixed part (1) is provided with a screw rod, and the other is provided with a threaded hole, the screw rod and the threaded hole being threadedly connected.

7. The levitation pin according to any one of claims 1-6, wherein the material guiding groove is an annular groove or a "C" shaped groove.

8. The levitation pin according to claim 7, wherein the replaceable part (2) is a cylindrical structure, the replaceable part (2) comprising a first part (21), a second part (22) and a third part (23) connected in sequence, the diameter of the second part (22) being smaller than the diameters of the first part (21) and the third part (23) respectively, so as to form the annular material guiding groove.

9. The levitation pin according to any one of claims 1-6, wherein there is a gap between the mounting plane of the replaceable part (2) and the mounting plane of the fixed part (1).

10. A stamping die characterized by, It comprises the levitation pin (100) according to any one of claims 1-9, the fixed part (1) of the levitation pin (100) being mounted on the lower die of the stamping die.

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