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CN-224222491-U - Movable inner positioning mechanism

CN224222491UCN 224222491 UCN224222491 UCN 224222491UCN-224222491-U

Abstract

The movable positioning mechanism comprises a pressing core, a flanging block, a lower forming block, an inner positioning block and a jacking pin, wherein the pressing core and the flanging block are arranged below an upper die holder, the lower forming block is fixed at the top of the lower die holder, the inner positioning block is movably arranged in the lower forming block, the jacking pin is movably arranged in the lower forming block, a first spring is arranged below the inner positioning block in the lower forming block, the inner positioning block can be driven to move upwards through the elastic force of the first spring, a second spring is arranged below the jacking pin in the lower forming block, the jacking pin can be driven to move upwards through the elastic force of the second spring, the inner positioning block can accurately position a workpiece, and the inner positioning block can jack up the workpiece together with the jacking pin. The positioning block can accurately position the workpiece, the positioning block can jack up the workpiece under the action of the first spring, and the positioning block can accurately position the workpiece when the workpiece is jacked up.

Inventors

  • CHENG SHENGQIAN

Assignees

  • 无锡华尔斯科技有限公司

Dates

Publication Date
20260512
Application Date
20250521

Claims (7)

  1. 1. A movable internal positioning mechanism for use in a mold comprising an upper mold base (100) and a lower mold base (200), characterized in that the movable internal positioning mechanism comprises: the material pressing core (600) and the flanging block (700) are arranged below the upper die holder (100); The lower molding block (1200) is fixed at the top of the lower die holder (200); at least two positioning blocks (800) movably arranged in the lower molding block (1200); The ejector pin (1100) is movably arranged in the lower forming block (1200); Wherein, be provided with first spring (900) below interior location piece (800) in lower shaping piece (1200), can drive interior location piece (800) upward movement through the elasticity of first spring (900), be provided with second spring (1000) below liftout round pin (1100) in lower shaping piece (1200), can drive liftout round pin (1100) upward movement through the elasticity of second spring (1000), interior location piece (800) can carry out accurate location to finished piece (1300), and interior location piece (800) can jack-up finished piece (1300) together with liftout round pin (1100).
  2. 2. The movable positioning mechanism as set forth in claim 1, wherein a first limiting block (810) is disposed at the bottom of the positioning block (800), a second limiting block (1110) is disposed at the bottom of the ejector pin (1100), and a first stepped hole (1210) and a second stepped hole (1220) are disposed in the lower molding block (1200).
  3. 3. A movable positioning mechanism according to claim 2, wherein the positioning block (800) is movably disposed in the first stepped hole (1210) and the first stopper (810) is restricted by a step in the first stepped hole (1210).
  4. 4. The movable positioning mechanism as set forth in claim 2, wherein said ejector pin (1100) is movably disposed in a second stepped hole (1220) and limits the second stopper (1110) by a step in the second stepped hole (1220).
  5. 5. A movable positioning mechanism according to any of claims 2-4, characterized in that the first spring (900) is arranged in the first stepped hole (1210) below the first stop block (810), and the second spring (1000) is arranged in the second stepped hole (1220) below the second stop block (1110).
  6. 6. A movable positioning mechanism according to claim 2, wherein a first plug is provided in the first stepped bore (1210) at the bottom of the first spring (900) and a second plug is provided in the second stepped bore (1220) at the bottom of the second spring (1000).
  7. 7. The movable positioning mechanism according to claim 1, further comprising an upper base plate (300), wherein the upper base plate (300) is fixed at the bottom of the upper die holder (100), an upper clamping plate (400) is fixed at the bottom of the upper base plate (300), a squat dead block (500) is fixed in the upper clamping plate (400) at the bottom of the upper base plate (300), a material pressing core (600) is fixed at the bottom of the squat dead block (500), and a flanging block (700) is fixed at the bottom of the upper clamping plate (400).

Description

Movable inner positioning mechanism Technical Field The utility model relates to the technical field of dies, in particular to a movable positioning mechanism. Background In recent years, with the increasing competition of the automobile market, in the direction of developing and researching new types of automobiles, various large automobile manufacturers aim at covering parts and related stamping parts of the automobiles, which are also called as parts, and the requirements on the parts are higher and higher, the parts tend to be complicated and high-strength, and various large mold manufacturers face the technical difficulty. The craftsman designs and arranges the process according to the characteristics of the product, makes the process file of the product, and determines the size of the mould and the number of steps for producing the product. For some parts, the blanking pin is generally used for realizing blanking in the whole-circle flanging process, and positioning is inaccurate when the parts with high positioning requirements are encountered. The existing positioning mechanism can realize stripping by using a material ejection pin when carrying out the whole-circle flanging process on some workpieces, and the stripping mode is not high in positioning precision and is not suitable for the workpieces with high positioning precision requirements. To this end, we propose an active positioning mechanism. Disclosure of utility model The inventor aims at the defects in the prior art, and provides a movable internal positioning mechanism, so that a positioning block can accurately position a workpiece, the positioning block can jack up the workpiece under the action of a first spring, and the workpiece can be accurately positioned when the workpiece is jacked up. The technical scheme adopted by the utility model is as follows: The utility model provides a positioning mechanism in activity for in the mould, the mould includes upper die base and die holder, positioning mechanism includes in the activity: The material pressing core and the flanging block are arranged below the upper die holder; The lower molding block is fixed at the top of the lower die holder; At least two positioning blocks movably arranged in the lower forming block; the ejection pin is movably arranged in the lower forming block; The lower forming block is internally provided with a first spring below the inner positioning block, the inner positioning block can be driven to move upwards through the elastic force of the first spring, the lower forming block is internally provided with a second spring below the ejector pin, the ejector pin can be driven to move upwards through the elastic force of the second spring, the inner positioning block can accurately position a workpiece, and the inner positioning block can jack up the workpiece together with the ejector pin. It is further characterized by: The bottom of the inner positioning block is provided with a first limiting block, the bottom of the ejection pin is provided with a second limiting block, and a first step hole and a second step hole are formed in the lower forming block. The positioning block is movably arranged in the first step hole, and the first limiting block is limited through a step in the first step hole. The ejector pin is movably arranged in the second step hole, and the second limiting block is limited through a step in the second step hole. The first spring is arranged in the first step hole and below the first limiting block, and the second spring is arranged in the second step hole and below the second limiting block. The first step hole is internally provided with a first screw plug at the bottom of the first spring, and the second step hole is internally provided with a second screw plug at the bottom of the second spring. The die comprises an upper die seat, and is characterized by further comprising an upper base plate, wherein the upper base plate is fixed at the bottom of the upper die seat, an upper clamping plate is fixed at the bottom of the upper base plate, a squat block is fixed in the upper clamping plate at the bottom of the upper base plate, a pressing core is fixed at the bottom of the squat block, and a flanging block is fixed at the bottom of the upper clamping plate. The beneficial effects of the utility model are as follows: The positioning block can accurately position the workpiece, the workpiece can be jacked under the action of the first spring, and the workpiece can be accurately positioned when jacked, so that the die space can be reduced, the full-circle flanging precision can be improved, the die cost can be reduced, the die structure can be optimized, and the design of a designer and the assembly of a fitter can be facilitated. Meanwhile, the utility model has the following advantages: (1) The upper die holder is positioned at the highest position, the lower die holder is fixed on a working table of a punch press, a workpiece is place