CN207288774U - Five or six gear shift bar resigning slot type forging molds - Google Patents

Abstract

The utility model belongs to mold design technical field, more particularly to five or six gear shift bar resigning slot type forging molds.Including upper die and lower die, the die cavity of extrusion forming is useful in upper die and lower die, die cavity includes output axocoel, input axocoel and shift fork chamber, output axocoel, shift fork chamber are sequentially connected with input axocoel, the shift fork chamber is equipped with the first recessing groove with output axocoel junction, shift fork chamber is equipped with the second recessing groove with input axocoel junction, and the first recessing groove, the second recessing groove are circular groove.Recessing groove design in this programme, finished size after reference product later stage mechanical processing, in the plane of fork body, to pitch body with axis body junction as starting point, an arc groove is done, effectively institute's made allowance unit is separated with axis structure in forging stock design by fork body, so can be in Milling Machining formula, avoid milling cutter from directly touching axis, destroy axial plane, while can preferably remove the burr at turning position.

Description

Five or six gear shift bar resigning slot type forging molds

Technical field

The utility model belongs to mold design technical field, more particularly to five or six gear shift bar resigning slot type forging molds.

Background technology

In the prior art, five or six gear shift bars belong to long axis products, and axis body diameter is smaller and length is longer, and in major axis Between the fork body at position be to extend a very long part to outside axis body, from the point of view of unitary construction, belong to the special-shaped product of comparison.Forging Make in technique, due to the major axis relation of product, usually select the round steel close to axis body diameter to be used as blank, using processing simultaneously Extrusion billet middle part, be allowed to deformation extension method come reach fork body region shaping.Need to utilize milling after the completion of forging Car is processed, when Milling Machining fork plane is to bottom, since fork body and axis body junction position form angle, milling Knife blade touches angle position, will completely attach to axis structure and can not avoid, it is impossible to the iron of effective venting milling Bits and burr, cause to terminate the substantial amounts of burr residual of mouth.Product beauty is not only influenced, but also the burr removal difficulty of angle is opposite It is larger.

Utility model content

The technical problem that the utility model solves be carry out after the completion of the forging of existing five or six gear shift bar Milling Machining due to Fork body forms angle with axis body junction position, and edge of milling cutter touches angle position, will completely attach to axis body knot Structure and can not avoid, it is impossible to the iron filings and burr of effective venting milling.

In order to solve the above-mentioned technical problem, the utility model provides following technical solution:Five or six gear shift bar resigning slot types Forging mold, including upper die and lower die, are useful for the die cavity of extrusion forming in upper die and lower die, die cavity include output axocoel, Axocoel and shift fork chamber are inputted, output axocoel, shift fork chamber are sequentially connected with input axocoel, the shift fork chamber and output axocoel junction Equipped with the first recessing groove, shift fork chamber is equipped with the second recessing groove with input axocoel junction, and the first recessing groove, the second recessing groove are Circular groove.

Using above-mentioned technical proposal, in the utility model, the recessing groove design in this programme, reference product later stage machinery plus Finished size after work, in the plane of fork body, to pitch body with axis body junction as starting point, does an arc groove, effectively Will fork body forging stock design in institute's made allowance unit separated with axis structure, so can avoid milling cutter in Milling Machining formula Axis is directly touched, destroys axial plane, while can preferably remove the burr at turning position.The structure of recessing groove is relatively easy, Cheap, saving cost of manufacture is brought to mould processing；Recessing groove can effectively separate the company of jag body surplus unit and axis structure Connect, facilitate following process, solve a large amount of burr leftover problems after the processing of the position.

Further, the radius of first recessing groove is 2mm~4mm, the radius of the second recessing groove for 3mm~ 5mm, can so ensure the size of the fork body post-production after extruding extension, can also more preferable deburring.

Further, first recessing groove, the depth bounds of the second recessing groove are 0.6mm~1mm, easy to pitch the burr of body Rejecting.

Brief description of the drawings

The utility model is described in further detail with reference to the accompanying drawings and detailed description：

Fig. 1 is structure front view in embodiment in five or six gear shift bar resigning slot type forging molds

Fig. 2 is recessing groove structure front view in embodiment in five or six gear shift bar resigning slot type forging molds.

Embodiment

Embodiment 1

As shown in Figure 1, 2：Five or six gear shift bar resigning slot type forging molds, including upper die and lower die, in upper die and lower die The die cavity of extrusion forming is useful for, die cavity includes output axocoel 1, input axocoel 2 and shift fork chamber 3, output axocoel 1, shift fork chamber 3 Sequentially connected with input axocoel 2, it is characterised in that the shift fork chamber 3 is equipped with the first recessing groove 4 with 1 junction of output axocoel, dials Fork chamber 3 is equipped with the second recessing groove 5 with 2 junction of input axocoel, and the first recessing groove 4, the second recessing groove 5 are circular groove. The radius of first recessing groove 4 is 2mm~4mm, and the radius of the second recessing groove 5 is 3mm~5mm.Described first Recessing groove 4, the depth bounds of the second recessing groove 5 are 0.6mm~1mm.

During work, the recessing groove in this programme designs, the finished size after reference product later stage mechanical processing, in fork body In plane, to pitch body with axis body junction as starting point, an arc groove is done, is effectively stayed fork body in forging stock design Surplus unit is separated with axis structure, so in Milling Machining formula milling cutter can be avoided directly to touch axis, be destroyed axial plane, together When can preferably remove the burr at turning position.The structure of recessing groove is relatively easy, and cheap, saving system is brought to mould processing Make cost；Recessing groove can effectively separate the connection of jag body surplus unit and axis structure, facilitate following process, solve the portion A large amount of burr leftover problems after the processing of position.The radius of first recessing groove 4 is 2mm~4mm, the second recessing groove 5 Radius is 3mm~5mm, can so ensure the size of the fork body post-production after extruding extension, can also be preferably clear Flash removed.First recessing groove 4, the depth bounds of the second recessing groove 5 are 0.6mm~1mm, easy to pitch picking for the burr of body Remove.

Above-described is only the preferred embodiment of the utility model, it is noted that for those skilled in the art For, on the premise of the utility model structure is not departed from, several modifications and improvements can also be made, these should also be considered as this The protection domain of utility model, these are all without the effect and practical applicability for influencing the utility model implementation.

Claims (3)

1. five or six gear shift bar resigning slot type forging molds, including upper die and lower die, it is useful for being squeezed into upper die and lower die The die cavity of type, die cavity include output axocoel, input axocoel and shift fork chamber, and output axocoel, shift fork chamber are sequentially connected with input axocoel, It is characterized in that, the shift fork chamber is equipped with the first recessing groove with output axocoel junction, shift fork chamber is set with input axocoel junction There is the second recessing groove, the first recessing groove, the second recessing groove are circular groove.

2. five or six gear shift bar resigning slot type forging mold according to claim 1, it is characterised in that first recessing groove Radius be 2mm~4mm, the radius of the second recessing groove is 3mm~5mm.

3. five or six gear shift bar resigning slot type forging mold according to claim 1, it is characterised in that described first steps down Groove, the depth bounds of the second recessing groove are 0.6mm~1mm.