Powder metallurgy die with punch convenient to replace

Abstract

The utility model discloses a powder metallurgy die with a punch convenient to replace, and relates to the technical field of deodorization devices, the powder metallurgy die with the punch convenient to replace comprises the punch, a reinforcing assembly, a connecting rod and a mounting sleeve, a clamping assembly is arranged in the punch, the connecting rod is arranged at the top of the punch, and the mounting sleeve is arranged in the clamping assembly. According to the punching device, through the arrangement of the inserting block, when the inserting block is inserted into the punch, the clamping assembly is pressed into the punch by the inserting block firstly, after the inserting groove is aligned with the clamping block, the clamping block is rapidly inserted into the inserting groove by means of elasticity of the reset spring, rapid installation is achieved, and through the arrangement of the ejection assembly, when the punch needs to be replaced, the punching device is convenient to use. The movable pressing rod is inserted into the first pressing rod to conduct extrusion, so that the second pressing rod is driven to conduct downward extrusion, the ejection block ejects the clamping block out of the insertion groove, rapid disassembly of the punch is achieved, replacement is convenient and rapid, the production cost is reduced, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to powder metallurgy mould field, concretely to a powder metallurgy mould of convenient replacement punch. BACKGROUND

[0002] Powder metallurgy punch is a kind of mould component used in powder metallurgy process, in powder metallurgy process, first, raw materials such as metal powder are loaded into mould cavity, and punch is used to exert pressure on powder in mould cavity, so that powder is formed into compacts with certain shape and density under high pressure.

[0003] At present, the connection of existing punch and mould usually needs bolt to install and fix, but when replacing punch, punch needs to be replaced as a whole, which is inconvenient to disassemble, increases production cost and reduces production efficiency. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of powder metallurgy mould of convenient replacement punch, with not need the punch as a whole with mould is disassembled, only need to disassemble wear part, and can be quickly installed and replaced.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of powder metallurgy mould of convenient replacement punch, including punch, reinforcing assembly, connecting rod and mounting sleeve, the inside of the punch is provided with clamping assembly, the top of the punch is provided with connecting rod, the reinforcing assembly is connected between the punch and connecting rod, the top of the connecting rod is connected with mounting sleeve, the bottom of the connecting rod is provided with insertion block, the left and right sides of the insertion block are provided with insertion slot;

[0006] The inside of the connecting rod is provided with ejection assembly, the ejection assembly includes the first pressure rod and the second pressure rod that are penetrated with connecting rod and are slidably connected, the right side of the first pressure rod is penetrated and slidably connected with movable pressure rod, the left and right sides of the insertion block are penetrated and slidably connected with ejection block, and the ejection block is in communication with insertion slot, the front and back sides of the ejection block are fixedly connected with limit plate, the second pressure rod is penetrated with connecting rod and insertion block and is slidably connected, the inner wall bottom of the insertion block is penetrated and slidably connected with elastic block, and the elastic block is fixedly connected with ejection spring between the insertion block.

[0007] As a preferred technical scheme of the utility model, the reinforcing assembly includes fixed ring, the fixed ring is penetrated with connecting rod and is rotatably connected, the bottom of the fixed ring is fixedly connected with bottom contact plate, the top and bottom of the bottom contact plate are provided with limit sliding hole that is evenly distributed, the top and bottom of the bottom contact plate are both provided with through hole that is evenly distributed and is in communication with limit sliding hole, the front and back sides of the fixed ring are both penetrated and rotatably connected with bolt, and the bolt is penetrated with connecting rod and is threadedly connected.

[0008] As a preferred technical scheme of the utility model, the top of the punch is fixedly connected with four fixing rods, and the fixing rods penetrate through the through holes.

[0009] As a preferred technical scheme of the utility model, the top of the mounting sleeve is fixedly connected with a mounting thread.

[0010] As a preferred technical scheme of the utility model, the inner wall top of the mounting sleeve is fixedly connected with a buffer spring, the bottom end of the buffer spring is fixedly connected with a connecting rod, the connecting rod penetrates through the mounting sleeve and is in sliding connection, the outer top of the connecting rod is fixedly connected with a limiting ring, and the bottom of the limiting ring is fixedly connected with a rubber pad.

[0011] As a preferred technical scheme of the utility model, the clamping assembly comprises a clamping block, the clamping block penetrates through the punch and is in sliding connection, the clamping block penetrates through the slot and is in sliding connection, and a return spring is fixedly connected between the clamping block and the punch.

[0012] As a preferred technical scheme of the utility model, the top right side and the bottom left and right sides of the second pressing rod are all provided with chamfers, one end adjacent to the second pressing rod of the ejection block is provided with a chamfer, and the top of one side, opposite to the return spring, of the clamping block is provided with a chamfer.

[0013] Compared with the prior art, the utility model provides a powder metallurgy die convenient for replacing punch, has the following beneficial effects:

[0014] 1、Through the setting of the plug-in block, when the plug-in block is inserted into the punch, the clamping assembly is first pressed into the interior of the punch, after the slot is aligned with the clamping block, the clamping block is quickly inserted into the slot by the elasticity of the return spring, quick installation is realized, through the setting of the ejection assembly, when the punch needs to be replaced, the movable pressing rod is inserted into the first pressing rod and is extruded, so that the second pressing rod is extruded downwards, the ejection block ejects the clamping block from the slot, the punch is quickly disassembled, replacement is convenient and quick, production cost is reduced and production efficiency is improved.

[0015] 2、Through the setting of the reinforcing assembly, after the punch and the reinforcing assembly are connected and installed, the through hole is aligned with the fixing rod and is moved downwards, the bottom contact plate is in contact with the punch and is rotated, the bottom of the fixing rod enters the limiting sliding hole, the screw hole on the fixing ring is aligned with the screw hole on the connecting rod, and the bolt can be screwed into the screw hole, so that the connecting strength between the punch and the connecting rod is increased, and the punch and the connecting rod are convenient to disassemble. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1The utility model discloses a whole structure schematic diagram.

[0017] Figure 2 The utility model discloses the inside structure diagram of mounting sleeve.

[0018] Figure 3 The utility model discloses reinforcing assembly schematic diagram.

[0019] Figure 4 The utility model discloses the structure diagram of ejection assembly.

[0020] Figure 5 The utility model discloses punch section schematic diagram.

[0021] In the drawing: 1, punch;2, reinforcing assembly;21, bottom contact plate;22, limit sliding hole;23, fixed ring;24, through -hole;25, bolt;3, connecting rod;4, mounting sleeve;5, mounting thread;6, buffer spring;7, limit ring;8, rubber pad;9, plug -in block;91, slot;10, fixed rod;11, ejection assembly;111, first pressure rod;112, movable pressure rod;113, ejection block;114, elastic block;115, ejection spring;116, limit plate;117, second pressure rod;12, clamping assembly;121, clamping block;122, reset spring. Specific implementation

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the range protected by the utility model.

[0023] Embodiment one, please refer to Figures 1-5 The utility model discloses a kind of powder metallurgy moulds of punch for facilitating replacement, including punch 1, reinforcing assembly 2, connecting rod 3 and mounting sleeve 4, it is characterized in that, the inside of punch 1 is provided with clamping assembly 12, the top of punch 1 is provided with connecting rod 3, punch 1 and connecting rod 3 are connected with reinforcing assembly 2, the top of connecting rod 3 is connected with mounting sleeve 4, the bottom of connecting rod 3 is equipped with plug-in block 9, plug-in block 9 left and right sides are equipped with slot 91;

[0024] The inside of the connecting rod 3 is internally provided with an ejection assembly 11, the ejection assembly 11 comprises a first pressing rod 111 and a second pressing rod 117 which are penetratingly and slidably connected with the connecting rod 3, the right side of the first pressing rod 111 is penetratingly and slidably connected with a movable pressing rod 112, the left and right sides of the plug-in block 9 are penetratingly and slidably connected with an ejection block 113, and the ejection block 113 is penetratingly connected with the insertion slot 91, the front and back sides of the ejection block 113 are fixedly connected with a limiting plate 116, the second pressing rod 117 is penetratingly and slidably connected with the connecting rod 3 and the plug-in block 9, the inside wall bottom of the plug-in block 9 is penetratingly and slidably connected with an elastic block 114, and the elastic block 114 is fixedly connected with the plug-in block 9 through an ejection spring 115.

[0025] Please refer to the accompanying drawings Figure 5 The connecting rod 3 is penetratingly and slidably connected with the ejection assembly 11, the ejection assembly 11 comprises a first pressing rod 111 and a second pressing rod 117 which are penetratingly and slidably connected with the connecting rod 3, the right side of the first pressing rod 111 is penetratingly and slidably connected with a movable pressing rod 112, the left and right sides of the plug-in block 9 are penetratingly and slidably connected with an ejection block 113, and the ejection block 113 is penetratingly connected with the insertion slot 91, the front and back sides of the ejection block 113 are fixedly connected with a limiting plate 116, the second pressing rod 117 is penetratingly and slidably connected with the connecting rod 3 and the plug-in block 9, the inside wall bottom of the plug-in block 9 is penetratingly and slidably connected with an elastic block 114, and the elastic block 114 is fixedly connected with the plug-in block 9 through an ejection spring 115.

[0026] Please refer to the accompanying drawings Figure 4 and the accompanying drawings Figure 5 The top right side and the bottom left and right sides of the second pressing rod 117 are provided with chamfers, one end of the ejection block 113 adjacent to the second pressing rod 117 is provided with a chamfer, and the top of the side opposite to the reset spring 122 of the clamping block 121 is provided with a chamfer.

[0027] In the embodiment, when the punch 1 needs to be disassembled, the movable pressing rod 112 is inserted into the first pressing rod 111, so that the first pressing rod 111 is pressed conveniently. When the first pressing rod 111 is pressed, the contact surface of the first pressing rod 111 and the second pressing rod 117 is chamfered, so that the first pressing rod 111 can better contact the second pressing rod 117. The second pressing rod 117 is moved downward under the extrusion of the first pressing rod 111, and the ejection block 113 is extruded by the second pressing rod 117, so that the ejection block 113 extends outward from the inside of the plug-in block 9, so that the clamping block 121 is ejected from the insertion slot 91, the clamping of the clamping block 121 is lost, the punch 1 is separated from the plug-in block 9, and the punch 1 is quickly detached from the connecting rod 3. After the disassembly is completed, the ejection spring 115 drives the elastic block 114 to eject the second pressing rod 117 upward, so that the ejection block 113 extrudes and resets the second pressing rod 117 in the reverse direction. When the punch 1 is assembled, the plug-in block 9 is inserted into the punch 1, the clamping block 121 is pressed into the inside of the punch 1 by the plug-in block 9, the clamping block 121 is quickly inserted into the insertion slot 91 by the elasticity of the reset spring 122 after the insertion slot 91 is aligned with the clamping block 121, the ejection block 113 drives the second pressing rod 117 to reset by the extrusion of the clamping block 121, and the punch 1 is quickly assembled.

[0028] In the embodiment, when the punch 1 needs to be disassembled, the movable pressing rod 112 is inserted into the first pressing rod 111, so that the first pressing rod 111 is pressed conveniently. When the first pressing rod 111 is pressed, the contact surface of the first pressing rod 111 and the second pressing rod 117 is chamfered, so that the first pressing rod 111 can better contact the second pressing rod 117. The second pressing rod 117 is moved downward under the extrusion of the first pressing rod 111, and the ejection block 113 is extruded by the second pressing rod 117, so that the ejection block 113 extends outward from the inside of the plug-in block 9, so that the clamping block 121 is ejected from the insertion slot 91, the clamping of the clamping block 121 is lost, the punch 1 is separated from the plug-in block 9, and the punch 1 is quickly detached from the connecting rod 3. After the disassembly is completed, the ejection spring 115 drives the elastic block 114 to eject the second pressing rod 117 upward, so that the ejection block 113 extrudes and resets the second pressing rod 117 in the reverse direction. When the punch 1 is assembled, the plug-in block 9 is inserted into the punch 1, the clamping block 121 is pressed into the inside of the punch 1 by the plug-in block 9, the clamping block 121 is quickly inserted into the insertion slot 91 by the elasticity of the reset spring 122 after the insertion slot 91 is aligned with the clamping block 121, the ejection block 113 drives the second pressing rod 117 to reset by the extrusion of the clamping block 121, and the punch 1 is quickly assembled. Figure 1 , Figure 3The reinforcing assembly 2 comprises a fixing ring 23 which is penetrated and rotationally connected with the connecting rod 3, the bottom of the fixing ring 23 is fixedly connected with a bottom contact plate 21, the top and bottom of the bottom contact plate 21 are provided with uniformly distributed limiting sliding holes 22, the top and bottom of the bottom contact plate 21 are provided with uniformly distributed penetrating holes 24 which are penetrated with the limiting sliding holes 22, the front and back of the fixing ring 23 are penetrated and rotationally connected with bolts 25 which are penetrated and threadedly connected with the connecting rod 3.

[0029] Please refer to the accompanying drawings Figure 3 and the accompanying drawings Figure 5 The top of the punch 1 is fixedly connected with four fixing rods 10 which are penetrated in the penetrating holes 24.

[0030] Please refer to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 The top of the mounting sleeve 4 is fixedly connected with mounting threads 5.

[0031] Please refer to the accompanying drawings Figure 2 The inner wall of the mounting sleeve 4 is fixedly connected with buffer springs 6 at the top, the bottom end of the buffer springs 6 is fixedly connected with the connecting rod 3, the connecting rod 3 is penetrated and slidingly connected with the mounting sleeve 4, the outer top of the connecting rod 3 is fixedly connected with a limiting ring 7, the bottom of the limiting ring 7 is fixedly connected with rubber pads 8.

[0032] In this embodiment, after the punch 1 and the connecting rod 3 are connected, the penetrating holes 24 are aligned with the fixing rods 10 and are moved downward, so that the bottom contact plate 21 is in contact with the punch 1 and is rotated, so that the bottom of the fixing rod 10 enters the limiting sliding hole 22, and the threaded hole on the fixing ring 23 is aligned with the threaded hole on the connecting rod 3, and the bolt 25 can be screwed into the threaded hole, thereby increasing the connecting strength between the punch 1 and the connecting rod 3, and in the use process of the punch, the buffer springs 6 can buffer the impact force received by the punch 1 and the connecting rod 3, and reset after the stamping is completed, and the rubber pads 8 are arranged to reduce the impact force generated by the collision between the connecting rod 3 and the mounting sleeve 4 during the resetting.

[0033] The working principle and use process of the utility model: first when need to disassemble punch 1, insert movable pressure rod 112 into first pressure rod 111, convenient to press, when press first pressure rod 111, because the contact surface of first pressure rod 111 and second pressure rod 117 is chamfered, can better contact with second pressure rod 117, second pressure rod 117 is extruded by first pressure rod 111 and moves downward, ejector block 113 is extruded by second pressure rod 117 and extends outward from the inside of plug-in block 9, thereby ejecting block 121 from the slot 91, after losing the clamping of block 121, punch 1 is separated from plug-in block 9, and quickly falls off from connecting rod 3, after disassembly, ejector spring 115 drives elastic block 114 to eject second pressure rod 117 upward, convenient to ejector block 113 reversely extruding second pressure rod 117 and resetting;

[0034] When installing, only need to insert plug-in block 9 into punch 1, block 121 is pressed into the inside of punch 1 by plug-in block 9, after the alignment of slot 91 and block 121, block 121 is quickly inserted into slot 91 by the elasticity of reset spring 122, and second pressure rod 117 is reset by the extrusion of block 121, realizing quick installation;

[0035] When installing reinforcing assembly 2, after the connection of punch 1 and connecting rod 3 is completed, make through hole 24 align with fixed rod 10 and move downward, so that bottom contact plate 21 contacts punch 1 and rotates, so that the bottom of fixed rod 10 enters into limiting sliding hole 22, and the screw hole on fixed ring 23 aligns with the screw hole on connecting rod, bolt 25 is screwed into the screw hole, increasing the connecting strength between punch 1 and connecting rod 3;

[0036] In the use process of punch, the impact force received by punch 1 and connecting rod 3 can be buffered by the setting of buffer spring 6, and reset after stamping is completed, and the setting of rubber pad 8 reduces the impact force generated by the collision of connecting rod 3 with mounting sleeve 4 when resetting.

Claims

1. A powder metallurgy die with a punch (1), a reinforcing assembly (2), a connecting rod (3) and a mounting sleeve (4), characterized in that, The inside of the punch (1) is provided with a clamping assembly (12), the top of the punch (1) is provided with a connecting rod (3), the punch (1) and the connecting rod (3) are connected with a reinforcing assembly (2), the top of the connecting rod (3) is connected with a mounting sleeve (4), the bottom of the connecting rod (3) is provided with an insertion block (9), and the left and right sides of the insertion block (9) are provided with insertion grooves (91). The inside of the connecting rod (3) is provided with an ejection assembly (11), the ejection assembly (11) comprises a first pressing rod (111) and a second pressing rod (117) penetrating and slidingly connected with the connecting rod (3), the right side of the first pressing rod (111) is provided with a movable pressing rod (112) penetrating and slidingly connected, and the left and right sides of the insertion block (9) are provided with an ejection block (113) penetrating and slidingly connected, and the ejection block (113) penetrates the insertion groove (91). The front and rear sides of the ejection block (113) are fixedly connected with limit plates (116), the second pressing rod (117) penetrates and slidingly connects with the connecting rod (3) and the insertion block (9), the inner wall of the insertion block (9) is provided with an elastic block (114) penetrating and slidingly connected, and the elastic block (114) and the insertion block (9) are fixedly connected with an ejection spring (115).

2. A powder metallurgy die for easy replacement of a punch according to claim 1, characterized in that: The reinforcing assembly (2) comprises a fixed ring (23), the fixed ring (23) penetrates and rotationally connects with the connecting rod (3), the bottom of the fixed ring (23) is fixedly connected with a bottom contact plate (21), the top and bottom of the bottom contact plate (21) are provided with uniformly distributed limit sliding holes (22), the top and bottom of the bottom contact plate (21) are provided with uniformly distributed penetrating holes (24), the penetrating holes (24) penetrate the limit sliding holes (22), the front and rear sides of the fixed ring (23) are provided with bolts (25) penetrating and rotationally connected, and the bolts (25) penetrate and threadedly connect with the connecting rod (3).

3. A powder metallurgy die for easy replacement of a punch as defined in claim 1, characterized in that: The top of the punch (1) is fixedly connected with four fixed rods (10), and the fixed rods (10) penetrate the penetrating holes (24).

4. A powder metallurgy die for easy replacement of a punch as defined in claim 1, characterized in that: The top of the mounting sleeve (4) is fixedly connected with a mounting thread (5).

5. A powder metallurgy die for easy replacement of a punch as defined in claim 1, characterized in that: The inner wall of the mounting sleeve (4) is fixedly connected with a buffer spring (6) at the top, and the bottom end of the buffer spring (6) is fixedly connected with the connecting rod (3), the connecting rod (3) penetrates and slidingly connects with the mounting sleeve (4), the top of the outer portion of the connecting rod (3) is fixedly connected with a limit ring (7), and the bottom of the limit ring (7) is fixedly connected with a rubber pad (8).

6. A powder metallurgy die for easy replacement of a punch as defined in claim 1, characterized in that: The clamping assembly (12) comprises a clamping block (121), the clamping block (121) penetrates and slidingly connects with the punch (1), and the clamping block (121) penetrates and slidingly connects with the insertion groove (91), and the clamping block (121) and the punch (1) are fixedly connected with a reset spring (122).

7. A powder metallurgy die for easy replacement of a punch as defined in claim 6, characterized in that: The top right side and the bottom left and right sides of the second pressing rod (117) are provided with chamfers, one end of the ejection block (113) adjacent to the second pressing rod (117) is provided with a chamfer, and the top of the side opposite to the reset spring (122) of the clamping block (121) is provided with a chamfer.

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