CN217474745U - Trimming die - Google Patents

Abstract

The utility model discloses a side cut mould, which comprises a die body, inlay the blade on the mould body and insert, the blade is inserted including the fixed part of embedding mould body and the cutting edge portion of expenditure mould body, the blade is inserted and is encircleed and set up in the mould body, and the blade is inserted and is connected mould body formation blade through-hole, and the blade that the blade was inserted is vertically contact surface, and the outer fringe face that the blade was inserted is the arc transition. The utility model discloses a blade is inserted and is to the further improvement of blade structure, has solved the blade life-span and has reached the quick renovation of blade for blade after wearing and tearing can the rapid processing drop into use again.

Description

Trimming die

Technical Field

The utility model relates to a side cut mould relates to the technical field of metal apparatus processing.

Background

At present, the tradition forges the cut off die and adopts integral blade design, and whole material adopts 5CrNiMo, or the body adopts 45 steel, and 5CrNiMo of blade welding to guarantee side cut effect and side cut life-span, reduce whole material cost simultaneously. The prior art has the following defects: the service life of the whole cutting edge is not good, after 1000 and 2000 products are cut, the cutting edge is worn greatly and cannot be used, and the cutting edge can only be welded and then renewed on a machining center. Secondly, the processing before, during, after and after welding in the welding process is time-consuming and can be finished generally in 3-5 days. The material selectivity of the trimming die in the prior art is low, the material which meets the economical efficiency and adapts to the hardness of the cutting edge insert is difficult to select, the material selection and hardness of the cutting edge insert need to be proper, the hardness is too high, the brittleness is high, and the cutting edge insert is easy to crack and lose efficacy. The cutting edge part with too low hardness is easy to wear, the trimming part of the product is not completely cut, and meanwhile, the renovation speed of the integral cutting edge design of the existing trimming module is slow, and the service performance is poor.

The invention patent application with the application number of CN201610707662.1 discloses a technology for forging a straight-tooth gear, which comprises a first step of forging a first gear blank; secondly, obtaining a second gear blank; thirdly, obtaining a third gear blank; fourthly, obtaining a finished gear blank; the invention also discloses a set of straight-tooth gear forging dies, which comprise a gear blank die, a primary forging die, a finish forging die and a drawing die. The process has the advantages of being matched with the die: the speed is high, the gear is heated and forged at one time, and the long machining process of the gear hobbing machine can be completed in a short time of a few minutes through the forging process of two sets of dies, namely a primary forging die and a final forging die. The steel is saved by 20 percent compared with the cutting processing. Compared with the traditional processing technology, the process saves the external circle turning process and the gear hobbing process, reduces the energy consumption and improves the production efficiency. The forged gear has the advantages of complete and reasonable metallographic structure, high bending strength and long service life. The forged gear solves the undercut problem of large-modulus and small-diameter gears. However, the technical scheme of the process can not solve the problems of short service life of the cutting edge and long turnover time after the cutting edge is worn.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an invention aim at provides a side cut mould to the above-mentioned problem that exists, including the mould body, inlay the blade on the mould body and insert, the blade is inserted including the fixed part and the blade portion of embedding mould body, the blade is inserted and is encircleed and set up in the mould body, and the blade is inserted and is connected the mould body and form the blade through-hole, and the blade of blade is inserted perpendicular contact surface, and the outer fringe face of blade is inserted for the arc transition. The utility model discloses a blade is inserted and is had short-lived and realized renewing fast of blade to the further improvement of blade structure for blade after wearing and tearing can the rapid processing come into operation again, adopts the technical scheme that this application disclosed simultaneously, only needs to fall a plane processing 2-3mm with blade wearing and tearing face, get rid of completely wearing and tearing the R angle that causes can, accomplish the work of renewing of blade wearing and tearing face in 30-40 minutes.

The utility model adopts the technical scheme as follows:

the utility model discloses a side cut mould, which comprises a die body, inlay the blade on the mould body and insert, the blade inserts including the fixed part of embedding mould body and the blade portion of expenditure mould body, the blade is inserted and is encircleed and set up in the mould body, and the blade is inserted and is connected mould body formation blade through-hole, and the blade that the blade was inserted is vertically contact surface, and the outer fringe face that the blade was inserted is the arc transition.

Furthermore, the cutting edge through hole is communicated with a through hole platform in the die body, the fixing part of the cutting edge insert is embedded in the die body, and the fixing part of the cutting edge insert is connected with the through hole platform in the die body through a screw, so that the cutting edge insert is connected and fixed with the die body.

Furthermore, the fixing part of the cutting edge insert comprises a first corner and a second corner, the first corner shrinks to form an internally-tangent arc-shaped contact surface, and the outer edge of the second corner forms an arc-shaped transition angle.

Further, the distance between the upper surface and the lower surface of the cutting edge insert is set to be 25-35 mm.

Furthermore, the renovating face-reducing block is sleeved on the cutting edge insert, the renovating face-reducing block is integrally embedded into the upper surface of the cutting edge insert for face-reducing processing, and the face-reducing distance of the renovating face-reducing block is 2-3 mm.

Further, the cutting edge insert is made of H13 material, and the die body is made of Q235 or 45 steel.

The technical effects of the utility model are as follows:

the utility model discloses a side cut mould, the blade life who has effectively solved side cut mould is short, the long problem of blade abrasion back turnover time.

The method comprises the following specific steps:

1. because the material with good red hardness is expensive, the utility model adopts the mode of inlaying the cutting edge, the material size is smaller, and the cost is lower;

2. the cutting edge insert is suitable in material selection and hardness, too high in hardness, large in brittleness and easy to crack and lose efficacy. The cutting edge part with too low hardness is easy to wear, and the trimming part of the product is not completely cut. Through repeated tests and practical use, the H13 material is determined to be adopted, the hardening and tempering hardness interval is HRC48-52, and the refurbishment frequency is 12000 refurbishment times per 8000-;

3. the renovation method is quick and simple: the cutting edge wear surface is only required to be processed by 2-3mm in a face reducing way, the R angle caused by wear is completely removed, the cutting edge is ensured to be sharp, and the renovation time is usually only 30-40 minutes.

Drawings

FIG. 1 is a schematic view of a prior art trimming die;

FIG. 2 is a schematic structural view of the trimming mold of the present invention;

FIG. 3 is an enlarged view of the trimming mold of the present invention at the position B;

FIG. 4 is a schematic structural view of the edge cutting mold according to the present invention in a sharp state;

FIG. 5 is a schematic view of the structure of the cutting die in a worn state;

fig. 6 is a schematic view of the renewing structure of the trimming mold of the present invention.

The labels in the figure are: 1-die body, 2-cutting edge insert, 201-fixing part, 202-cutting edge part, 203-first corner, 204-second corner, 3-cutting edge through hole, 4-through hole platform, 5-screw and 6-renovating face-reducing block.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

In this embodiment, the adopted data is a preferred scheme, but is not used to limit the present invention;

example 1

As shown in fig. 1 to 6, the embodiment provides an edge cutting die, which includes a die body, wherein a cutting edge insert is embedded in the die body, the cutting edge insert includes a fixing portion and a cutting edge portion, the fixing portion and the cutting edge portion are embedded in the die body, the cutting edge insert is circumferentially arranged on the die body, the cutting edge insert is connected with the die body to form a cutting edge through hole, a cutting edge of the cutting edge insert is a vertical contact surface, and an outer edge surface of the cutting edge insert is in arc transition.

In this embodiment, the cutting edge through hole communicates with the through hole platform in the die body, the fixing portion of the cutting edge insert is embedded in the die body, and the fixing portion of the cutting edge insert and the through hole platform in the die body are connected through the screw, so that the cutting edge insert and the die body are connected and fixed. Preferably, in the embodiment, the cutting edge is embedded into a cutting edge part made of a general material by using H13, the material of the die body is Q235 or 45 steel, and the cutting edge insert and the die body are connected by using a plurality of M10 screws.

Furthermore, the H13 material in this embodiment belongs to hot work die steel, and is a steel grade formed by adding the alloy element II on the basis of carbon work steel, and the material has high hardenability and toughness, excellent hot cracking resistance, and good wear resistance; however, the manufacturing cost of the material is high, and in the embodiment, the cutting edge embedding mode is adopted, so that the input cost of the material is low; in addition, the cutting edge is inlaid by H13 material, the hardening and tempering hardness range is HRC48-52 to reach an ideal state, the refurbishment frequency of the worn cutting edge under the hardness is 12000 refurbishment times per 8000-.

Example 2

As shown in the figure, this embodiment provides a side cut mould, including the mould body, inlay the cutting edge insert on the mould body, the cutting edge insert includes the fixed part of embedding mould body and the cutting edge portion of spending the mould body, the cutting edge insert encircles and sets up in the mould body, and the cutting edge insert is connected the mould body and is formed the cutting edge through-hole, and the cutting edge of cutting edge insert is the vertically contact surface, and the outer fringe face of cutting edge insert is the arc transition.

In this embodiment, the fixing portion of the cutting edge insert includes a first corner and a second corner, the first corner is contracted to form an internally-tangent arc-shaped contact surface, and an arc-shaped transition angle is formed at an outer edge of the second corner; preferably, the fixing portion of the cutting edge insert is embedded into the die body by 10mm in the embodiment, and in order to better connect the cutting edge insert with the die body, a first corner and a second corner are preferably arranged in the embodiment, and the first corner and the second corner enable the fixing portion to be embedded into the connecting angle in the die body to be flexible transition angles, so that the difficulty in mounting the die and the material loss caused by the embedding of acute angles are avoided.

In the embodiment, the distance between the upper surface and the lower surface of the cutting edge insert is set to be 25-35 mm;

in this embodiment, the cutting edge insert is sleeved with the retreading step-down block, the retreading step-down block is integrally embedded in the upper surface of the cutting edge insert for step-down processing, the step-down distance of the retreading step-down block is 2-3mm, as shown in fig. 4, fig. 4 is a structural schematic diagram that the cutting edge of the cutting edge insert of this embodiment is in a sharp state, the cutting edge in fig. 5 is worn to form an R-angle, and the cutting edge adopting the R-angle cannot be completely removed and cannot be normally used; in this embodiment, preferably, the distance between the upper surface and the lower surface of the cutting edge insert is set to 30mm, as shown in fig. 6, only the cutting edge wear surface needs to be processed by 2-3mm, and the R angle caused by wear is completely removed, and with the cutting edge insert structure disclosed in this embodiment, the time for renewing the cutting edge can be greatly shortened, and only 30-40 minutes is needed to complete the renewing.

Claims (6)

1. The utility model provides a side cut mould, includes mould body (1), its characterized in that, inlay cutting edge insert (2) on mould body (1), cutting edge insert (2) are including fixed part (201) and the blade portion (202) of embedding mould body (1), cutting edge insert (2) encircle to set up on mould body (1), and cutting edge insert (2) are connected mould body (1) and are formed cutting edge through-hole (3), and the cutting edge of cutting edge insert (2) is the vertically contact surface, and the outer fringe face of cutting edge insert (2) is the arc transition.

2. The trimming die according to claim 1, wherein the cutting edge through hole (3) communicates with a through hole platform (4) in the die body (1), the fixing portion (201) of the cutting edge insert (2) is embedded in the die body (1), and the fixing portion (201) of the cutting edge insert (2) and the through hole platform (4) in the die body (1) are connected by a screw (5) to fix the cutting edge insert (2) and the die body (1).

3. The trimming die according to claim 2, wherein the fixing portion (201) of the cutting edge insert (2) comprises a first corner (203) and a second corner (204), the first corner (203) is shrunk to form an internally-tangent arc-shaped contact surface, and the outer edge of the second corner (204) forms an arc-shaped transition angle.

4. The trimming die according to claim 1 or 3, wherein the distance between the upper surface and the lower surface of the cutting edge insert (2) is set to 25 to 35 mm.

5. The trimming die according to claim 3, wherein the edge cutting insert (2) is sleeved with a retreading face reducing block (6), the retreading face reducing block (6) is integrally embedded into the upper surface of the edge cutting insert (2) for face reducing processing, and the face reducing distance of the retreading face reducing block (6) is 2-3 mm.

6. The trimming die according to claim 1 or 5, wherein the cutting edge insert (2) is made of H13 material, and the die body (1) is made of Q235 or 45 steel.

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