Positioning sliding block assembly for sheet metal part stamping die

Abstract

The positioning sliding block assembly for the sheet metal part stamping die comprises at least two sliding blocks, a mounting base and a springback reset piece, and the two sliding blocks are oppositely arranged; a mounting groove for mounting the sliding block is formed in the mounting seat, a groove opening of the mounting groove is formed upwards, and the sliding block is slidably connected with the mounting groove in the inclined direction; the rebounding reset piece is used for forcing the sliding block to slide away from the bottom of the mounting groove, and the mounting base is provided with a limiting structure used for preventing the sliding block from disengaging from the mounting groove; the top faces of the sliding blocks are used for bearing a bottom plate of the sheet metal part, the side face, deviating from the opposite sliding block, of one sliding block serves as a positioning face, the positioning face is used for abutting against the folded edge of the sheet metal part, and the positioning face is provided with a positioning structure. According to the positioning structure, under the condition that the sheet metal part with the folded edges on the periphery is positioned, the hindering effect of the positioning structure on the discharging process of the sheet metal part can be reduced at the same time.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of stamping die, in particular to a positioning sliding block assembly for sheet metal stamping die. BACKGROUND

[0002] In the process of processing sheet metal by stamping die, in order to guarantee the processing precision, the workpiece must occupy a correct position relative to the stamping die, that is, the workpiece must be positioned. When positioning the sheet metal with flanges around, a plurality of positioning members are needed to position the flanges of the sheet metal from all around. Since the flanges of the sheet metal need to be positioned by matching concave-convex structures, it will hinder the unloading of the sheet metal. CONTENT OF THE INVENTION

[0003] In order to reduce the hindering effect of the positioning structure on the unloading process of the sheet metal while positioning the sheet metal with flanges around, the present application provides a positioning sliding block assembly for sheet metal stamping die.

[0004] The positioning sliding block assembly for sheet metal stamping die provided by the present application adopts the following technical solution:

[0005] A positioning sliding block assembly for sheet metal stamping die, comprising a sliding block, a mounting seat and a rebounding reset member, the sliding block is provided with at least two, and the two sliding blocks are oppositely arranged; the mounting seat is provided with a mounting groove for mounting the sliding block, the groove opening of the mounting groove is upwardly arranged, and the sliding block and the mounting groove are connected in sliding connection in an inclined direction; when the two opposite sliding blocks slide downward, they gradually separate from each other; the rebounding reset member is installed between the sliding block and the groove bottom of the mounting groove, and the rebounding reset member is used to force the sliding block to slide away from the groove bottom of the mounting groove; the mounting seat is provided with a limiting structure, and the limiting structure is used to hinder the sliding block from escaping from the mounting groove; the top surface of the sliding block is used to support the bottom plate of the sheet metal, the side surface of the sliding block away from the other opposite sliding block is used as a positioning surface, the positioning surface is used to abut against the flange of the sheet metal, the positioning surface is provided with a positioning structure, the positioning structure is outwardly convex or inwardly concave, the outwardly convex positioning structure is used to cooperate with the inwardly concave structure on the flange of the sheet metal, and the inwardly concave positioning structure is used to cooperate with the convex structure on the flange of the sheet metal.

[0006] By adopting the technical scheme, the positioning sliding block assembly is installed on the lower die part of the stamping die. When stamping the sheet metal part with the flange around, the sheet metal part is placed upside down on the lower die part, the top surface of the sliding block supports the bottom plate of the sheet metal part, as the upper die part gradually moves downward, the upper die part abuts against the bottom plate of the sheet metal part and exerts downward pressure on the sliding block, so that the sliding block is inclined to slide downward, the resilient reset member is deformed to avoid the sliding block, and in the process of the inclined sliding block sliding downward, the positioning structure of the sliding block cooperates with the outer convex structure or the inner concave structure of the flange of the sheet metal part, so that the sliding block forms a positioning action on the sheet metal part, and the position of the sheet metal part is kept stable in the process of stamping. After stamping is completed, the upper die part is retracted upward, and the elastic force of the resilient reset member forces the sliding block to be inclined to slide upward and reset, and in this process, the cooperation relationship between the positioning structure of the sliding block and the flange of the sheet metal part is released, so that the sheet metal part is easy to be unloaded.

[0007] Optionally, the depth of the mounting groove is greater than the height dimension of the sliding block, the sliding block can be completely retracted into the mounting groove, and the mounting groove is provided through on one side close to the positioning surface of the sliding block, and when the top surface of the sliding block is flush with the upper surface of the mounting seat, the positioning surface of the sliding block is kept flush with the opening edge of the through side of the mounting groove.

[0008] By adopting the technical scheme, the sliding block can be completely retracted into the mounting groove, when the sliding block is completely retracted into the mounting groove, the bottom plate of the sheet metal part can abut against the upper surface of the mounting seat, and the flange of the sheet metal part abuts against the side surface of the mounting groove, so that the position of the sheet metal part is kept stable.

[0009] Optionally, the side of the sliding block away from the positioning surface is provided as an inclined surface, the inclined surface is provided with a dovetail-shaped protrusion, the inner side wall of the mounting groove is provided with a dovetail-shaped groove matched with the dovetail-shaped protrusion, and the sliding block is connected through the dovetail-shaped protrusion and the dovetail-shaped groove.

[0010] By adopting the technical scheme, the dovetail-shaped protrusion of the sliding block is connected with the dovetail-shaped groove of the inner wall of the mounting groove, so that the sliding block can be kept stable in the process of sliding.

[0011] Optionally, the outer convex surface of the dovetail-shaped protrusion is provided with a limiting protrusion, the outer convex surface of the limiting protrusion is perpendicular to the top surface of the sliding block, the inner wall of the dovetail-shaped groove is provided with an avoiding groove matched with the limiting protrusion, the limiting structure is a limiting block, the mounting seat is provided with an embedded groove for mounting the limiting block, and the embedded groove is communicated with the avoiding groove.

[0012] By adopting the technical scheme, in the process of the sliding block being inclined to slide upward, the limiting protrusion moves in the horizontal direction. The limiting block limits the horizontal position of the limiting protrusion, can limit the horizontal movement range of the sliding block, and thus hinders the sliding block from being taken out of the mounting groove.

[0013] Optionally, the resilient reset member is a compression spring, and the lower surface of the sliding block is provided with a spring mounting hole, and the upper end of the compression spring is located in the spring mounting hole.

[0014] By adopting the above technical scheme, the spring mounting hole on the lower surface of the sliding block forms a positioning effect on the compression spring, which is conducive to keeping the position of the compression spring stable.

[0015] Optionally, the mounting seat is provided with a bolt, the bolt includes a light shaft section, a threaded section and a cap head, the threaded section is threadedly connected with the groove bottom of the mounting groove, the sliding block is provided with a light hole matched with the light shaft section, the light shaft section is slidably connected with the light hole, the upper end of the light hole is provided with a counterbore for avoiding the cap head of the bolt, and the cap head of the bolt serves as a limiting structure.

[0016] By adopting the above technical scheme, the sliding block is slidably connected with the light shaft section of the bolt through the light hole, and the bolt is detachably connected with the mounting seat, so that the sliding block is convenient to disassemble and assemble.

[0017] Optionally, the upper surface of the sliding block is embedded with a lubricating member.

[0018] By adopting the above technical scheme, the sliding block abuts against the bottom plate of the sheet metal part through the lubricating member, and the sliding block slides horizontally relative to the bottom plate of the sheet metal part during the process of inclined sliding of the sliding block. By arranging the lubricating member, the friction between the sliding block and the sheet metal part can be reduced.

[0019] Optionally, the lubricating member is a polytetrafluoroethylene block, the lubricating member has a trapezoidal structure, and the large end of the lubricating member faces downward. The sliding block is provided with a plug-in groove matched with the lubricating member, the plug-in groove has a dovetail structure, the height dimension of the plug-in groove is smaller than that of the lubricating member, the lubricating member is plugged into the plug-in groove, and the plugging direction between the lubricating member and the plug-in groove is perpendicular to the sliding direction of the sliding block.

[0020] By adopting the above technical scheme, the plugging direction between the lubricating member and the plug-in groove is perpendicular to the sliding direction of the sliding block, so that the lubricating member is not easy to be pulled out of the plug-in groove under the friction of the sheet metal part.

[0021] In summary, the present application has at least one of the following beneficial technical effects:

[0022] 1. When the sheet metal part with the flanges around is subjected to stamping processing, the positioning structure of the sliding block cooperates with the outer convex structure or the inner concave structure of the flange of the sheet metal part, so that the sliding block forms a positioning effect on the sheet metal part, and the position of the sheet metal part is kept stable during the stamping processing. After the stamping is completed, the elastic force of the resilient reset member forces the sliding block to slide upward and reset, and the cooperation relationship between the positioning structure of the sliding block and the flange of the sheet metal part is released, so that the sheet metal part is easy to unload.

[0023] 2. The dovetail-shaped protrusion of the slider is in sliding connection with the dovetail groove of the inner wall of the mounting groove, so that the slider can be kept stable during sliding. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of Example 1.

[0025] Figure 2 is a schematic diagram of the state before the positioning structure positions the sheet metal part in Example 1.

[0026] Figure 3 is a schematic diagram of the state when the positioning structure positions the sheet metal part in Example 3.

[0027] Figure 4 is a sectional view of the cooperation between the slider and the mounting groove in Example 2.

[0028] Figure 5 is a sectional view of the cooperation between the slider and the mounting groove in Example 3.

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] 1. slider; 11, positioning groove; 12, spring mounting hole; 13, inclined surface; 14, dovetail-shaped protrusion; 15, limiting protrusion; 16, countersunk hole; 17, insertion slot; 18, light hole; 19, positioning surface; 2, mounting seat; 21, mounting groove; 22, dovetail groove; 23, avoiding groove; 24, embedded groove; 3, elastic reset member; 4, limiting block; 41, countersunk screw; 5, bolt; 51, threaded section; 52, light shaft section; 53, cap; 54, gasket; 6, lubricating member; 7, sheet metal part; 71, bottom plate; 72, folded edge. DETAILED DESCRIPTION

[0031] The following will be described in detail in combination with the accompanying Figures 1-5 The present application is further described in detail.

[0032] Example 1

[0033] The present application discloses a positioning slider assembly for a sheet metal part stamping die. Referring to Figure 1 and Figure 3, the positioning slider assembly for sheet metal stamping die comprises sliders 1, mounting seats 2 and resilient reset members 3, four sliders 1 are arranged in a quadrilateral distribution, and two sliders 1 are oppositely arranged; the mounting seat 2 is provided with a mounting groove 21 for mounting the slider 1, the groove opening of the mounting groove 21 is arranged upwards, and the slider 1 is slidably connected with the mounting groove 21 in an inclined direction; when the two opposite sliders 1 slide downwards, they gradually separate from each other; the compression spring is used to force the slider 1 to slide away from the groove bottom of the mounting groove 21; the top surface of the slider 1 is used to support the bottom plate 71 of the sheet metal part 7, and the side surface of the slider 1 away from the other slider 1 is used as a positioning surface 19, the positioning surface 19 is used to abut against the folded edge 72 of the sheet metal part 7, and the positioning surface 19 is provided with a positioning structure, the positioning structure is arranged outwardly protruding or inwardly recessed, the outwardly protruding positioning structure is used to cooperate with the inwardly recessed structure on the folded edge 72 of the sheet metal part 7, and the inwardly recessed positioning structure is used to cooperate with the protruding structure on the folded edge 72 of the sheet metal part 7.

[0034] With reference to Figure 2 and Figure 3 , when the sheet metal part 7 with the folded edge 72 around is subjected to stamping processing, the sheet metal part 7 is invertedly clamped on the lower die part of the stamping die, as the upper die part descends, the upper die part abuts against the bottom plate 71 of the sheet metal part 7 and applies downward pressure on the slider 1, so that the slider 1 slides downwardly and obliquely, the resilient reset member 3 is deformed to avoid the slider 1, and in the process of the slider 1 sliding downwardly and obliquely, the positioning structure of the slider 1 cooperates with the outwardly protruding structure or the inwardly recessed structure of the folded edge 72 of the sheet metal part 7, so that the slider 1 forms a positioning action on the sheet metal part 7, and the position of the sheet metal part 7 is kept stable in the process of stamping. After stamping is completed, the upper die part is retracted upwardly, the elastic force of the resilient reset member 3 forces the slider 1 to slide upwardly and obliquely to reset, and in this process, the cooperation between the positioning structure of the slider 1 and the folded edge 72 of the sheet metal part 7 is released, so that the sheet metal part 7 is easily unloaded.

[0035] With reference to Figure 1 In the embodiment, the positioning structure is specifically an inwardly recessed positioning groove 11, and the positioning groove 11 is used to position the protruding structure such as a rivet on the folded edge 72 of the sheet metal part 7.

[0036] As to the mounting seat 2, according to different die structures, the mounting seat 2 can be a concave die fixing plate of the lower die part or an ejection plate of the lower die part, or can be an embedded block corresponding to the slider 1, and the embedded block serving as the mounting seat 2 is embedded in the concave die fixing plate or the ejection plate of the lower die part. In the embodiment, the concave die fixing plate of the lower die part is specifically used as the mounting seat 2.

[0037] With reference to Figure 2The depth of the mounting groove 21 is greater than the height dimension of the sliding block 1, and the sliding block 1 can be completely retracted into the mounting groove 21. The mounting groove 21 is provided through near the side of the positioning surface 19 of the sliding block 1, and when the top surface of the sliding block 1 is flush with the upper surface of the mounting seat 2, the positioning surface 19 of the sliding block 1 is flush with the opening edge of the through side of the mounting groove 21.

[0038] Referring to Figure 2 The rebounding reset member 3 is a compression spring, which is installed between the sliding block 1 and the groove bottom of the mounting groove 21. The lower surface of the sliding block 1 is provided with a spring mounting hole 12, and the upper end of the compression spring is located in the spring mounting hole 12.

[0039] Referring to Figure 1 The side of the sliding block 1 away from the positioning surface 19 is provided as a slope 13, and the slope 13 is provided with a dovetail-shaped protrusion 14. The inner side wall of the mounting groove 21 near the dovetail-shaped protrusion 14 is provided in an inclined manner, and is adapted to the slope 13 of the sliding block 1. The inner side wall of the mounting groove 21 near the dovetail-shaped protrusion 14 is provided with a dovetail-shaped groove 22 adapted to the dovetail-shaped protrusion 14, and the upper end of the dovetail-shaped groove 22 is provided through.

[0040] The outer convex surface of the dovetail-shaped protrusion 14 is provided with a limiting protrusion 15, and the outer convex surface of the limiting protrusion 15 is perpendicular to the top surface of the sliding block 1. The inner wall of the dovetail-shaped groove 22 is provided with a avoiding groove 23 adapted to the limiting protrusion 15. The outer convex surface of the dovetail-shaped protrusion 14 and the outer convex surface of the limiting protrusion 15 refer to the side surface away from the main structure of the sliding block 1.

[0041] Referring to Figure 1 and Figure 2 The mounting seat 2 is provided with a limiting structure for preventing the sliding block 1 from being pulled out of the mounting groove 21. The limiting structure is a limiting block 4, which is installed and fixed by a countersunk screw 41. The mounting seat 2 is provided with an embedded groove 24 for installing the limiting block 4, and the embedded groove 24 is communicated with the avoiding groove 23. The countersunk screw 41 is screwed with the groove bottom of the embedded groove 24 after penetrating through the limiting block 4. The limiting block 4 is provided with a countersunk hole 16 for avoiding the head of the countersunk screw 41.

[0042] In this embodiment, the sliding block 1 is connected by the dovetail-shaped protrusion 14 and the dovetail-shaped groove 22. During the process of the sliding block 1 sliding upwardly, the limiting protrusion 15 will move in the horizontal direction. The limiting block 4 limits the horizontal position of the limiting protrusion 15, which can limit the horizontal movement range of the sliding block 1, thereby preventing the sliding block 1 from being pulled out of the mounting groove 21.

[0043] Embodiment 2

[0044] The difference between the present embodiment and embodiment 1 is that the sliding connection between the slider 1 and the mounting seat 2 in the present embodiment is different from that in embodiment 1, and the slider 1 in the present embodiment is not provided with the dovetail-shaped protrusion and the dovetail-shaped groove 22, the limiting protrusion 15, the embedding groove 24 and the avoiding groove 23 based on the dovetail-shaped slider 1. Moreover, the limiting structure in the present embodiment is different from that in embodiment 1.

[0045] With reference to Figure 4 In the present embodiment, the mounting seat 2 is provided with a bolt 5, the bolt 5 is obliquely arranged, the bolt 5 comprises a light shaft section 52, a threaded section 51 and a cap head 53, the threaded section 51 is threadedly connected with the groove bottom of the mounting groove 21, the slider 1 is provided with a light hole 18 matched with the light shaft section 52, the light shaft section 52 is slidingly connected with the light hole 18, the upper end of the light hole 18 is provided with a counterbore for avoiding the cap head 53 of the bolt 5, the depth of the counterbore is greater than the sum of the height of the cap head 53 and the moving stroke of the slider 1, and the cap head 53 of the bolt 5 serves as the limiting structure.

[0046] The diameter of the threaded section 51 is smaller than that of the light shaft section 52, a stepped surface is formed between the threaded section 51 and the light shaft section 52, the threaded section 51 is sleeved with a gasket 54, the gasket 54 is a wedge-shaped structure, and the stepped surface and the groove bottom of the mounting groove 21 jointly compress the gasket 54.

[0047] Embodiment 3

[0048] With reference to Figure 5 The difference between the present embodiment and embodiment 1 is that the upper surface of the slider 1 is embedded with a lubricating piece 6, the lubricating piece 6 is a polytetrafluoroethylene block, the lubricating piece 6 is a trapezoidal structure, and the large end of the lubricating piece 6 faces downward; the slider 1 is provided with a plug-in groove 17 matched with the lubricating piece 6, the plug-in groove 17 is a dovetail-shaped structure, the height dimension of the plug-in groove 17 is smaller than that of the lubricating piece 6, the lubricating piece 6 is plugged into the plug-in groove 17, and the plugging direction between the lubricating piece 6 and the plug-in groove 17 is perpendicular to the sliding direction of the slider 1.

[0049] The slider 1 abuts against the bottom plate 71 of the sheet metal part 7 through the lubricating piece 6, and the slider 1 slides horizontally relative to the bottom plate 71 of the sheet metal part 7 during the process of oblique sliding, and the friction between the slider 1 and the sheet metal part 7 can be reduced by arranging the lubricating piece 6.

[0050] The above are the preferred embodiments of the present application, which do not limit the protection scope of the present application, and therefore: any equivalent changes made on the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A positioning slide assembly for sheet metal stamping dies, characterized by: The application relates to a slide block (1), a mounting base (2) and a rebound reset member (3), wherein two slide blocks (1) are oppositely arranged; the mounting base (2) is provided with a mounting groove (21) for mounting the slide block (1), the groove opening of the mounting groove (21) is arranged upwards, the slide block (1) is slidably connected with the mounting groove (21) in an inclined direction, and when the two opposite slide blocks (1) slide downwards, the slide blocks gradually separate from each other; the rebound reset member (3) is arranged between the slide block (1) and the groove bottom of the mounting groove (21), the rebound reset member (3) is used for forcing the slide block (1) to slide away from the groove bottom of the mounting groove (21), the mounting base (2) is provided with a limiting structure, and the limiting structure is used for preventing the slide block (1) from being separated from the mounting groove (21); the top surface of the slide block (1) is used for supporting the bottom plate (71) of a sheet metal part (7), the side surface of the slide block (1) away from the other slide block (1) is used as a positioning surface (19), the positioning surface (19) is used for abutting against the folded edge (72) of the sheet metal part (7), and the positioning surface (19) is provided with a positioning structure which is outwardly convex or inwardly concave, the outwardly convex positioning structure is used for cooperating with the inwardly concave structure on the folded edge (72) of the sheet metal part (7), and the inwardly concave positioning structure is used for cooperating with the convex structure on the folded edge (72) of the sheet metal part (7).

2. The positioning slide block assembly for sheet metal stamping die according to claim 1, characterized in that: The depth of the mounting groove (21) is greater than the height dimension of the slide block (1), the slide block (1) can be completely shrunk into the mounting groove (21), and the mounting groove (21) is through arranged on the side close to the positioning surface (19) of the slide block (1); when the top surface of the slide block (1) is flush with the upper surface of the mounting base (2), the positioning surface (19) of the slide block (1) is kept flush with the opening edge of the through side of the mounting groove (21).

3. The positioning slide block assembly for sheet metal stamping die according to claim 1, characterized in that: The side of the slide block (1) away from the positioning surface (19) is provided with an inclined surface (13), the inclined surface (13) is provided with a dovetail-shaped convex (14), the inner side wall of the mounting groove (21) is provided with a dovetail-shaped groove (22) matched with the dovetail-shaped convex (14), and the slide block (1) is slidably connected with the dovetail-shaped groove (22) through the dovetail-shaped convex (14).

4. The positioning slide block assembly for sheet metal stamping die according to claim 3, characterized in that: The outward convex surface of the dovetail-shaped convex (14) is provided with a limiting convex (15), the outward convex surface of the limiting convex (15) is perpendicular to the top surface of the slide block (1), the inner wall of the dovetail-shaped groove (22) is provided with an avoiding groove (23) matched with the limiting convex (15); the limiting structure is a limiting block (4), the mounting base (2) is provided with an embedded groove (24) for mounting the limiting block (4), and the embedded groove (24) is communicated with the avoiding groove (23).

5. The positioning slide block assembly for sheet metal stamping die according to claim 1, characterized in that: The rebound reset member (3) is a compression spring, and the lower surface of the slide block (1) is provided with a spring mounting hole (12), and the upper end of the compression spring is located in the spring mounting hole (12).

6. The positioning slide block assembly for sheet metal stamping die according to claim 1, characterized in that: The mounting seat (2) is provided with a bolt (5), the bolt (5) includes an optical axis section (52), a threaded section (51) and a cap head (53), the threaded section (51) is threadedly connected with the groove bottom part of the mounting groove (21), the slider (1) is provided with an optical hole (18) matched with the optical axis section (52), the optical axis section (52) is slidably connected with the optical hole (18), the upper end of the optical hole (18) is provided with a counterbore for avoiding the cap head (53) of the bolt (5), and the cap head (53) of the bolt (5) serves as a limiting structure.

7. The positioning slide block assembly for sheet metal stamping die according to claim 1, characterized in that: The upper surface of the slider (1) is embedded with a lubricating part (6).

8. The positioning slide block assembly for sheet metal stamping die according to claim 7, characterized in that: The lubricating part (6) is a polytetrafluoroethylene block, the lubricating part (6) is a trapezoidal structure, and the large end of the lubricating part (6) faces downward; the slider (1) is provided with a plug-in groove (17) matched with the lubricating part (6), the plug-in groove (17) is a dovetail-shaped structure, the height dimension of the plug-in groove (17) is less than the height dimension of the lubricating part (6), the lubricating part (6) is plugged into the plug-in groove (17), and the plug-in direction between the lubricating part (6) and the plug-in groove (17) is perpendicular to the sliding direction of the slider (1).

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