T-shaped bolt hot forging forming die
By designing a hot forging die for T-bolts, the problems of high equipment cost and excessive product coaxiality in the cold heading process were solved, enabling efficient and high-precision T-bolt production, reducing scrap rate and extending the service life of the die.
Patent Information
- Application Number
- CN202423006509.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-06
AI Technical Summary
The existing cold heading process suffers from high equipment costs, excessive product coaxiality, low production efficiency, high scrap rate, and serious problems with equipment precision and mold installation and debugging when forming T-bolts with large deformation ratios.
A hot forging die for T-bolts was designed, including components such as an upper template, a lower die sleeve, a forming upper punch, and a lower cavity die. The die is securely connected to the press slide through the die shank, ensuring precise operation of the die at high temperatures. The tight fit between the upper and lower die sleeves enables efficient and high-precision plastic deformation. Combined with the design of the ejector punch, it enables rapid unloading and replacement of the die's vulnerable parts.
It enables efficient and precise production of T-bolts, reduces scrap rate, extends mold life, and improves production efficiency and mold reliability.
Smart Images
Figure CN223465500U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mould technical field especially relates to a T type bolt hot forging forming die. BACKGROUND
[0002] The forming die is a kind of tool widely used in industrial production, by exerting external action such as pressure, temperature to raw material, makes raw material occur plastic deformation or flow, to obtain the spare part with specific shape, size and performance, forming die is various, including forging die, stamping die, injection mould etc., plays an important role under the fastening condition in mechanical manufacturing, automobile industry, aerospace and many other fields.
[0003] T type bolt hot forging forming die as a specific type in forming die, is specially used to manufacture T type bolt, utilizes the characteristic that metal plasticity enhances under high temperature, places heated metal blank in die cavity, by the relative movement of upper die and lower die, exerts huge pressure to blank, makes it occur plastic deformation according to the shape of die cavity, finally forms the shape of T type bolt, can make T type bolt obtain higher strength and good mechanical properties.
[0004] The existing cold heading process is operated at normal temperature to metal material to form bolt, avoids the consumption of heating energy in hot forging process and the problem of metal oxidation possibly caused by high temperature, but since cold heading process completely relies on plastic deformation of material at normal temperature in forming process, for T type bolt with large deformation ratio, especially bolt with special head size, the required equipment tonnage is larger, not only increases equipment cost, but also causes product coaxiality to be out of tolerance and scrap rate to rise in production process due to equipment precision and die installation and debugging problems, and frequent debugging and inspection also reduce production efficiency. UTILITY MODEL CONTENTS
[0005] In order to make up for the above shortcomings, the utility model provides a T type bolt hot forging forming die, aims at improving the problem in the prior art that since cold heading process completely relies on plastic deformation of material at normal temperature in forming process, for T type bolt with large deformation ratio, not only increases equipment cost, but also causes product coaxiality to be out of tolerance in production process due to equipment precision and die installation and debugging.
[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a T type bolt hot forging forming die, including upper die plate and lower die sleeve, the top of upper die plate is fixedly installed with die handle, the bottom of upper die plate is fixedly connected with forming upper punch, the outside of forming upper punch is clamped with upper die sleeve, the inside of lower die sleeve is equipped with lower cavity die, the inside bottom end of lower cavity die is equipped with lower concave die, the bottom of lower die sleeve is threadedly connected with scale female, the inside of scale female is provided with ejector punch.
[0007] As a further description of the above technical solutions:
[0008] The upper die plate is provided with mounting holes at the top four corners, and the mounting holes are equal in size.
[0009] As a further description of the above technical solutions:
[0010] The upper die plate has a square structure and a thickness greater than one-tenth of its width.
[0011] As a further description of the above technical solutions:
[0012] The working end of the upper punch has high precision size and surface quality, and the material of the upper punch has high hardness.
[0013] As a further description of the above technical solutions:
[0014] The upper die sleeve has a sleeve structure, and the inner diameter of the upper die sleeve is matched with the outer diameter of the upper punch.
[0015] As a further description of the above technical solutions:
[0016] The lower cavity die is installed at the lower part of the mold, and the material of the lower cavity die has high strength.
[0017] As a further description of the above technical solutions:
[0018] The lower die sleeve has a sleeve structure, and the inside of the lower die sleeve is sleeved outside the lower cavity die.
[0019] As a further description of the above technical solutions:
[0020] The shape and size of the ejector punch are designed according to the structure of the mold cavity and the shape of the workpiece, and the material of the ejector punch is high-strength and high-wear-resistant material.
[0021] The utility model has the advantages of the following:
[0022] 1、The utility model discloses a mold handle is stably connected with the pressure machine sliding block, and the power of the pressure machine is accurately transmitted to the upper die plate, so that the mold accurately runs under the driving of the pressure machine, the stability and accuracy of the T-shaped bolt hot forging forming process are guaranteed, the upper die sleeve is used for protecting and guiding the upper punch, and the close cooperation between the mold parts is utilized to make the bolt blank plastic deformation under high temperature, complete the bolt head forming, realize efficient and high-precision production, reduce the scrap rate, and the mold structure design ensures that the parts can bear impact friction, prolongs the service life, and improves the overall reliability. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 A perspective view of a T-shaped bolt hot forging forming die is provided for the utility model;
[0024] Figure 2 A sectional view of a T-shaped bolt hot forging forming die is provided for the utility model;
[0025] Figure 3 A bottom structure schematic view of a male die fixing plate in a T-shaped bolt hot forging forming die is provided for the utility model;
[0026] Figure 4 A partial structure schematic view of a T-shaped bolt hot forging forming die is provided for the utility model;
[0027] Figure 5 A top view of a stripper plate in a T-shaped bolt hot forging forming die is provided for the utility model.
[0028] Legend:
[0029] 1, die handle; 2, upper die plate; 3, forming upper punch; 4, upper die sleeve; 5, lower cavity die; 6, lower die sleeve; 7, lower concave die; 8, scale mother; 9, ejector punch; 10, mounting hole. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0031] Reference Figures 1-5The utility model provides an embodiment: a kind of T bolt hot forging forming die, including upper die plate (2) and lower die sleeve (6), the top of upper die plate (2) is fixedly installed with die handle (1), die handle (1) can be stably connected with the die and the pressure machine slider, so that the die can accurately receive the power of pressure machine, guarantee the accuracy of subsequent processing, upper die plate (2) bottom is fixedly connected with forming upper punch (3), and upper die plate (2) provides solid support basis for forming upper punch (3), ensure that it is stable and does not deform in movement, forming upper punch (3) is directly acted on heating blank, and it is made to plastic deformation to shape bolt shape, forming upper punch (3) is clamped with upper die sleeve (4) outside, and upper die sleeve (4) is protected and guided effect to forming upper punch (3), reduce its wear and tear and guarantee movement direction precision, to further improve forming precision, lower die sleeve (6) is internally provided with lower cavity die (5), and lower cavity die (5) has the cavity that is adapted to the head of T bolt, can guide blank accurate deformation, obtain accurate head shape, lower cavity die (5) internally bottom end is provided with lower cavity die (7), and lower cavity die (7) is cooperated with forming upper punch (3), and the shape of bolt head bottom is finely shaped, ensure that product quality meets the standard, and lower die sleeve (6) bottom is screw-connected with scale female (8), scale female (8) is fixed lower die sleeve (6) again and can be measured and adjusted component position when installation debugging, guarantee die overall precision, ensure product consistency, scale female (8) is internally provided with ejector punch (9), and when forming upper punch (3) backstroke, ejector punch (9) moves upward, and forming bolt is ejected from lower cavity die (5), convenient to unload, so that the die quickly enters next working cycle, improve production efficiency, realize high-efficiency accurate production, simultaneously also convenient for die installation debugging maintenance and spare part replacement, enhance the reliability of die and service life.
[0032] Referring to Figure 1 and Figure 2The upper die plate (2) of the T-shaped bolt hot forging forming die is provided with mounting holes (10) at the top four corners, and the mounting holes (10) are equal in size, which enables the upper die plate (2) to be accurately and stably connected with the die handle (1) through the mounting holes (10), ensures that the pressure transmitted by the die handle (1) is uniformly distributed on the upper die plate (2) during work, prevents the die from being damaged or affecting the forming precision due to unstable connection or uneven stress, the shape of the upper die plate (2) is a square structure, and the thickness is greater than one tenth of the width, the square structure is convenient for positioning and operation of the die during installation and use, and the sufficient thickness can provide a solid support foundation for the entire upper die part, enhance the anti-deformation ability of the upper die plate (2) when bearing the stamping pressure, and ensure the stability and durability of the die, the working end of the forming upper punch (3) adopts high-precision size and surface quality, so that the shape and size precision of the bolt head can reach a high standard when stamping the heated bolt blank, reducing the scrap rate and improving the product quality, the material of the forming upper punch (3) has high hardness characteristics, which makes it not easy to wear during repeated stamping process, and can maintain the shape and size precision of the working end for a long time, thereby ensuring the service life of the die and the stability of the forming quality, reducing the maintenance cost and replacement frequency of the die.
[0033] Referring to Figure 2The upper die sleeve (4) is a sleeve structure that can tightly wrap around the outside of the forming upper punch (3) to provide all-round protection for the forming upper punch (3) to prevent it from being disturbed by lateral forces during work and causing deviation or damage, ensuring the stability of the movement of the forming upper punch (3). The inner diameter of the upper die sleeve (4) is matched with the outer diameter of the forming upper punch (3) to ensure the cooperation accuracy between them, so that the forming upper punch (3) can move smoothly without resistance, reduce friction resistance, improve stamping efficiency, and help maintain the accuracy of the stamping process, thereby improving the product forming quality. The lower cavity die (5) is installed at the lower part of the mold and is in a key forming position, providing an accurate cavity space for the forming of the T-shaped bolt head. The material of the lower cavity die (5) has high strength characteristics, which can withstand the great pressure exerted by the forming upper punch (3) during stamping and the stress generated by metal deformation at high temperature, ensuring that the lower cavity die (5) will not deform or be damaged during long-term use, prolonging the service life of the mold and ensuring the stability and consistency of product forming. The lower die sleeve (6) is a sleeve structure that can effectively wrap and protect the lower cavity die (5) and enhance the overall structural strength of the lower cavity die (5) to prevent it from being damaged by external impact or pressure during work. The inner part of the lower die sleeve (6) is sleeved on the outside of the lower cavity die (5), and the two are tightly matched to provide stable support and positioning for the lower cavity die (5), ensuring the positional accuracy of the lower cavity die (5) during work and helping to improve product forming precision. The shape and size of the ejector punch (9) are designed according to the structure of the mold cavity and the shape of the workpiece, so that it can perfectly fit the mold cavity and the workpiece, fully contact the workpiece during the ejecting process, and uniformly apply force to ensure that the formed workpiece is smoothly ejected from the mold cavity, avoiding workpiece jamming or damage. The material of the ejector punch (9) is high-strength and high-wear-resistant material, which can withstand the impact force and friction force generated by frequent ejecting operations, maintain good working performance for a long time, and is not easy to deform and wear, reducing the replacement frequency of the ejector punch (9) and improving the overall reliability and working efficiency of the mold.
[0034] Working principle: the die handle (1) is stably connected with the external press slide, ensuring that the whole die can accurately operate under the drive of the press, the upper die plate (2) is driven by the press slide to move up and down, the upper die plate (2) is fixedly connected with the upper forming punch (3) at the bottom, and the upper die sleeve (4) clamped outside the upper forming punch (3) plays a role in protecting and guiding the upper forming punch (3), in the die closing process, the upper die sleeve (4) guides the upper forming punch (3) to move downward accurately, ensuring the cooperation precision of the upper forming punch (3) with the lower cavity die (5) and the lower concave die (7), the lower cavity die (5) in the lower die sleeve (6) has a cavity matched with the shape of the head of the T-shaped bolt, when the heated T-shaped bolt blank is placed in the lower cavity die (5), with the downward movement of the upper die plate (2), the upper forming punch (3) gradually enters the lower cavity die (5), and the blank is subjected to pressure, so that the blank is plastically deformed at high temperature, fills the cavity of the lower cavity die (5), and gradually forms the head of the T-shaped bolt, the lower concave die (7) is located at the bottom of the lower cavity die (5) and cooperates with the upper forming punch (3) to accurately form the shape of the bottom of the bolt head, so as to ensure the size and shape accuracy of the bolt head, the scale nut (8) threaded at the bottom of the lower die sleeve (6) not only plays a role in fixing the lower die sleeve (6), but also has a measuring function, during the installation and debugging of the die, the relative positions between the parts of the die can be accurately measured and adjusted through the scale nut (8), so as to ensure the accuracy of the die, meanwhile, the ejector punch (9) arranged in the scale nut (8) plays an important role after the bolt is formed, when the upper forming punch (3) returns, the ejector punch (9) ejects the formed T-shaped bolt from the lower cavity die (5), facilitating the subsequent unloading operation, so that the die can quickly enter the next working cycle, in the whole hot forging forming process, the plastic deformation characteristics of metal at high temperature are utilized to process the T-shaped bolt blank into a finished product meeting the requirements, the structure design of the die ensures that the parts can withstand great impact force and friction force in the repeated stamping process, and the stable working state is maintained, so that the efficient and accurate hot forging forming production of the T-shaped bolt is realized, meanwhile, the installation, debugging, maintenance and replacement of the die are facilitated, and the overall reliability and service life of the die are improved.
[0035] Finally, it should be pointed out that: the above only describes preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for some technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A hot swage forming die for a T-bolt comprising an upper die plate (2) and a lower die sleeve (6) characterised in that: The top of the upper die plate (2) is fixedly provided with a die handle (1), and the bottom of the upper die plate (2) is fixedly connected with a forming upper punch (3), the outer part of the forming upper punch (3) is clamped with an upper die sleeve (4), the inner part of the lower die sleeve (6) is provided with a lower cavity die (5), the inner bottom end of the lower cavity die (5) is provided with a lower concave die (7), the bottom of the lower die sleeve (6) is threadedly connected with a scale female (8), and the inner part of the scale female (8) is provided with a material ejecting punch (9).
2. The hot heading die for a T-bolt according to claim 1, characterized by: The top of the upper die plate (2) is fixedly provided with a die handle (1), and the bottom of the upper die plate (2) is fixedly connected with a forming upper punch (3), the outer part of the forming upper punch (3) is clamped with an upper die sleeve (4), the inner part of the lower die sleeve (6) is provided with a lower cavity die (5), the inner bottom end of the lower cavity die (5) is provided with a lower concave die (7), the bottom of the lower die sleeve (6) is threadedly connected with a scale female (8), and the inner part of the scale female (8) is provided with a material ejecting punch (9).
3. The T-bolt hot-forging forming die according to claim 1, characterized in that: The top of the upper die plate (2) is fixedly provided with a die handle (1), and the bottom of the upper die plate (2) is fixedly connected with a forming upper punch (3), the outer part of the forming upper punch (3) is clamped with an upper die sleeve (4), the inner part of the lower die sleeve (6) is provided with a lower cavity die (5), the inner bottom end of the lower cavity die (5) is provided with a lower concave die (7), the bottom of the lower die sleeve (6) is threadedly connected with a scale female (8), and the inner part of the scale female (8) is provided with a material ejecting punch (9).
4. The hot heading die for a T-bolt according to claim 1, wherein: The top of the upper die plate (2) is fixedly provided with a die handle (1), and the bottom of the upper die plate (2) is fixedly connected with a forming upper punch (3), the outer part of the forming upper punch (3) is clamped with an upper die sleeve (4), the inner part of the lower die sleeve (6) is provided with a lower cavity die (5), the inner bottom end of the lower cavity die (5) is provided with a lower concave die (7), the bottom of the lower die sleeve (6) is threadedly connected with a scale female (8), and the inner part of the scale female (8) is provided with a material ejecting punch (9).
5. The hot heading die for a T-bolt according to claim 1, wherein: The top of the upper die plate (2) is fixedly provided with a die handle (1), and the bottom of the upper die plate (2) is fixedly connected with a forming upper punch (3), the outer part of the forming upper punch (3) is clamped with an upper die sleeve (4), the inner part of the lower die sleeve (6) is provided with a lower cavity die (5), the inner bottom end of the lower cavity die (5) is provided with a lower concave die (7), the bottom of the lower die sleeve (6) is threadedly connected with a scale female (8), and the inner part of the scale female (8) is provided with a material ejecting punch (9).
6. The hot heading die for a T-bolt according to claim 1, wherein: The top of the upper die plate (2) is fixedly provided with a die handle (1), and the bottom of the upper die plate (2) is fixedly connected with a forming upper punch (3), the outer part of the forming upper punch (3) is clamped with an upper die sleeve (4), the inner part of the lower die sleeve (6) is provided with a lower cavity die (5), the inner bottom end of the lower cavity die ( 7. The hot heading die for a T-bolt according to claim 1, wherein: 8. The hot heading die for a T-bolt according to claim 1, wherein: