Structure of stamping lower die holder for shell parts

Abstract

The utility model discloses a structure of a shell part stamping lower die holder, which comprises a die holder provided with a cylindrical convex part, a die mounted on the cylindrical convex part and a lower elastic sleeve sleeved on the periphery of the die, a limit ring sleeved on the cylindrical convex part is mounted on the die holder and provided with a circle of positioning holes, and the lower elastic sleeve is sleeved on the periphery of the die. An elastic column is arranged in each positioning hole in a matched mode, the bottom end of each elastic column abuts against the mold base, and the top end of each elastic column abuts against the bottom end of the corresponding lower elastic sleeve. The elastic column replaces a spring in the prior art, and the elastic column is directly positioned in the positioning hole of the limiting ring. The elastic columns are made of plastic parts, silica gel and rubber which are good in elasticity, so that cost is saved, and the elastic columns are convenient to position and replace.

Description

TECHNICAL FIELD

[0001] The utility model relates to the stamping field, concretely relates to the stamping die of shell type part. BACKGROUND

[0002] Punch, including punch, the die located below the punch. The periphery of the punch is provided with an elastic sleeve, and is provided as an upper elastic sleeve. The periphery of the die is provided with an elastic sleeve, and is provided as a lower elastic sleeve. The part is positioned on the lower elastic sleeve and the die, when the part is stamped on the punch, the punch descends, the upper elastic sleeve that synchronously descends with the punch first contacts the part and presses down the part, the part is clamped between the upper elastic sleeve and the lower elastic sleeve, the punch exposes the upper elastic sleeve, the die exposes the lower elastic sleeve, and the punch is stamped into the part that has been clamped.

[0003] A circle of springs is arranged between the upper elastic sleeve and the punch holder for realizing the elastic expansion and contraction of the upper elastic sleeve. A circle of springs is arranged between the lower elastic sleeve and the die holder for realizing the elastic expansion and contraction of the lower elastic sleeve. Among them, the spring is used to realize the elastic expansion and contraction of the lower elastic sleeve, and the spring needs to be limited to ensure that it can stably expand and contract. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem that the spring of the lower elastic sleeve needs to be positioned on the die holder first to play its function, the structure of the positioning spring makes the die holder structure complex, the spring is not easy to replace, and a certain cost is needed.

[0005] In order to solve the above technical problem, the utility model provides the following technical scheme: a structure of shell type part stamping lower die holder, including the die holder with cylindrical convex part, the die installed on the cylindrical convex part, the lower elastic sleeve sleeved on the periphery of the die, the cylindrical convex part is sleeved with the limiting ring, the limiting ring is installed on the die holder, the limiting ring is provided with a circle of positioning holes, the elastic column is matched in each positioning hole, the bottom end of the elastic column abuts against the die holder, and the top end of the elastic column abuts against the bottom end of the lower elastic sleeve.

[0006] According to the above technical scheme, the elastic column replaces the spring in the prior art, and the elastic column is directly positioned in the positioning hole of the limiting ring. The elastic column adopts plastic parts, silica gel and rubber with good elasticity, so that the positioning and replacement of the elastic column are convenient, and the cost is saved.

[0007] The positioning hole is provided with a gap on one side close to the cylindrical convex part, and the gap has a width smaller than the inner diameter of the positioning hole. After long-term use, the elastic column is deformed, especially in the radial direction. The gap can accommodate the radial deformation of the elastic column and guide the direction of the radial deformation to the cylindrical convex part, so that the elastic column is close to the outer side wall of the cylindrical convex part instead of moving away from the cylindrical convex part. In this way, the service life of the elastic column can be prolonged.

[0008] The limiting ring is provided with a connecting hole, and a threaded connecting piece matched in the connecting hole fixes the limiting ring on the mold base.

[0009] The outer diameter of the cylindrical convex part is greater than or equal to the outer diameter of the mold. After the lower elastic sleeve is removed, the worker can directly remove the limiting ring without disassembling the mold.

[0010] The mold base is fixed on the stamping table, the stamping table is provided with a strip-shaped mounting groove, the cross section of the strip-shaped mounting groove is in the shape of a Chinese character "N", and the head of the bolt fixing the mold base on the stamping table is matched in the strip-shaped mounting groove.

[0011] The left side of the mold base is provided with a left supporting block, and the right side of the mold base is provided with a right supporting block. The left supporting block and the right supporting block are located on the stamping table, and the left supporting block and the mold base have a left gap, and the right supporting block and the mold base have a right gap. The left pressing plate is pressed on the left side of the left supporting block and the mold base, and the right pressing plate is pressed on the right side of the right supporting block and the mold base. The bolt fixing the mold base on the stamping table includes a left bolt and a right bolt. The top of the left bolt is screwed with a left nut through the connecting hole of the left pressing plate, and the top of the right bolt is screwed with a right nut through the connecting hole of the right pressing plate. In actual operation, the worker can use left supporting blocks, right supporting blocks of different heights, and shims at the bottom of the mold base to adjust the height of the mold, so that the mold can adapt to the descending amplitude of the punch. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model will be further described in connection with the drawings:

[0013] Figure 1 It is the structure schematic diagram of shell type part stamping lower mold base;

[0014] Figure 2 It is Figure 1 The top view of figure 7;

[0015] Figure 3 It is Figure 1 The right view of figure 7;

[0016] Figure 4 It is the combined structure schematic diagram of mold base 10 and the parts thereon;

[0017] Figure 5 It is Figure 4 The top view of figure 7;

[0018] Figure 6 is a schematic view of the lower elastic sleeve 30;

[0019] Figure 7 is a top view of the lower elastic sleeve 30; Figure 6

[0020] Figure 8 is a schematic view of the lower elastic sleeve 30 hidden; Figure 4

[0021] Figure 9 is a top view of the lower elastic sleeve 30; Figure 8

[0022] Figure 10 is a schematic view of the limiting ring 40;

[0023] Figure 11 is a top view of the limiting ring 40; Figure 10

[0024] Explanation of symbols in the drawings:

[0025] 10, mold base; 11, cylindrical protrusion;

[0026] 20, mold;

[0027] 30, lower elastic sleeve;

[0028] 40, limiting ring; 41, positioning hole; 42, notch; 43, connecting hole;

[0029] 50, elastic column;

[0030] 60, stamping table; 61, strip-shaped mounting groove; 62, left supporting block; 63, right supporting block; 64, left pressing plate; 65, right pressing plate; 66, cushion block;

[0031] 701, left bolt; 702, right bolt; 71, bolt head; 72, left nut; 73, right nut. DETAILED DESCRIPTION

[0032] As Figure 1 , Figure 4 , Figures 8 to 11 , a structure of a shell part stamping lower mold base, comprising a mold base 10 provided with a cylindrical protrusion 11, a mold 20 mounted on the cylindrical protrusion, a lower elastic sleeve 30 sleeved on the periphery of the mold, a limiting ring 40 sleeved on the cylindrical protrusion, the limiting ring being mounted on the mold base, the limiting ring being provided with a circle of positioning holes 41, each positioning hole being matched with an elastic column 50, the bottom end of the elastic column abutting against the mold base, and the top end of the elastic column abutting against the bottom end of the lower elastic sleeve.

[0033] As Figure 11 ​​​​The positioning hole 41 is provided with an opening 42 on the side close to the cylindrical protrusion 11, and the opening has a width smaller than the inner diameter of the positioning hole.

[0034] The limiting ring 40 is provided with a connecting hole 43, and a threaded connecting member matched in the connecting hole is used to fix the limiting ring on the mold base 10.

[0035] As shown in the drawings, Figure 8 The outer diameter of the cylindrical protrusion 11 is greater than or equal to the outer diameter of the mold 20.

[0036] In combination Figures 1 to 3 The mold base 10 is fixed on a stamping table 60, the stamping table is provided with a strip-shaped mounting groove 61, the cross section of the strip-shaped mounting groove is in the shape of a Chinese character "N", and the head 71 of a bolt used to fix the mold base on the stamping table is matched in the strip-shaped mounting groove.

[0037] The left side of the mold base 10 is provided with a left supporting block 62, and the right side of the mold base is provided with a right supporting block 63, the left supporting block and the right supporting block are both located on the stamping table 60, the left supporting block has a left gap with the mold base, and the right supporting block has a right gap with the mold base, a left pressing plate 64 is pressed on the left side of the left supporting block and the mold base, a right pressing plate 65 is pressed on the right side of the right supporting block and the mold base, the bolt used to fix the mold base on the stamping table includes a left bolt 701 and a right bolt 702, the top of the left bolt is screwed with a left nut 72 through a connecting hole of the left pressing plate, and the top of the right bolt is screwed with a right nut 73 through a connecting hole of the right pressing plate.

[0038] In actual operation, the worker can use the left supporting block 62, the right supporting block 63 and the cushion block 66 at the bottom of the mold base 10 with different heights to adjust the height of the mold 20, so that the mold can adapt to the descending amplitude of the punch.

[0039] When the elastic column 50 is replaced, the worker removes the limiting ring 40 after removing the lower elastic sleeve 30, and then removes the old elastic column from the mold base 10. After the worker clamps the new elastic column in the positioning hole 41 of the limiting ring 40, the limiting ring is installed on the mold base 10.

[0040] The above is only a preferred embodiment of the present application, and for those skilled in the art, the specific embodiment and application range can be changed according to the idea of the present application, and the content of the specification should not be understood as a limitation of the present application.

Claims

1. A structure of a shell part stamping lower die seat, comprising a die seat (10) provided with a cylindrical protrusion (11), a die (20) mounted on the cylindrical protrusion, and a lower elastic sleeve (30) sleeved on the periphery of the die, characterized in that: A limiting ring (40) is sleeved on the cylindrical convex part, the limiting ring is installed on the mold base, the limiting ring is provided with a circle of positioning holes (41), an elastic column (50) is matched in each positioning hole, the bottom end of the elastic column abuts against the mold base, and the top end of the elastic column abuts against the bottom end of the lower elastic sleeve.

2. The structure of the lower die set for the shell part press working according to claim 1, wherein: An opening (42) is formed on the side of the positioning hole (41) close to the cylindrical convex part (11), and the width of the opening is smaller than the inner diameter of the positioning hole.

3. The structure of the shell part press lower die holder according to claim 1, characterized in that: The limiting ring (40) is provided with a connecting hole (43), and a threaded connecting piece matched in the connecting hole fixes the limiting ring on the mold base (10).

4. The structure of the shell part press lower die holder according to claim 1, characterized in that: The outer diameter of the cylindrical convex part (11) is greater than or equal to the outer diameter of the mold (20).

5. The structure of the shell part press lower die holder according to claim 1, characterized in that: The mold base (10) is fixed on a stamping table (60), the stamping table is provided with a strip-shaped mounting groove (61), the cross section of the strip-shaped mounting groove is in the shape of a Chinese character 'you', and the head (71) of a bolt for fixing the mold base on the stamping table is matched in the strip-shaped mounting groove.

6. The structure of the lower die set for the shell part press working according to claim 5, wherein: The left side of the mold base (10) is provided with a left supporting block (62), and the right side of the mold base is provided with a right supporting block (63), the left supporting block and the right supporting block are located on the stamping table (60), the left supporting block and the mold base have a left gap, the right supporting block and the mold base have a right gap, a left pressing plate (64) is pressed on the left side of the left supporting block and the mold base, a right pressing plate (65) is pressed on the right side of the right supporting block and the mold base, the bolts for fixing the mold base on the stamping table include a left bolt (701) and a right bolt (702), the top of the left bolt is screwed with a left nut (72) through a connecting hole of the left pressing plate, and the top of the right bolt is screwed with a right nut (73) through a connecting hole of the right pressing plate.

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