CN208437604U - Gear forming fixed equipment - Google Patents

Abstract

The utility model relates to Gear Processing fields, specifically disclose a kind of gear forming fixed equipment, including rack, fixed mechanism and support component, feeding-passage is fixed in rack, support component includes support chip, and support cylinder is fixed in rack, is equipped with reset spring in support cylinder；Fixed mechanism includes water inlet water pump, effluent water pump and fixed cylinder, water inlet water pump and effluent water pump are connected to fixed cylinder, water inlet switch and effluent switch are fixed in rack, water inlet switch and effluent switch can make to work into water water pump and effluent water pump after being pressed respectively；The piston rod of two fixed cylinders is fixed with left cavity plate and right cavity plate respectively.The fixed equipment of this programme can reduce gear destruction.

Description

Gear forming fixed equipment

Technical field

The utility model relates to Gear Processing field more particularly to gear extrusion forming fields.

Background technique

Gear is a kind of typical driving parts, is indispensable part in all kinds of mechanical equipments, and traditional gear is raw Production method mainly includes machining and Plastic Forming processing two major classes, but existing industrial production is still with machining It is main.There are many disadvantages for " subtracting material " gear working method of this removal excess metal material, such as manufacturing procedure complexity, needs Number of devices is more, stock utilization is low；And since metallic fiber is cut off in cutting process, so that the gear produced Reliability and durability have a greatly reduced quality, seriously affected the performance of product.

There is gear cold-extruded platen press later, and overcame above-mentioned disadvantage.Cold extrusion is exactly that metal blank is placed on cold-extruded In compression mold cavities, at room temperature, pressure is applied to blank by punch-pin fixed on press machine, metal blank is made to generate plastic deformation And the processing method that part is made.Blank can be forced to generate plastic deformation when extruding, cold extrusion is chipless or few chip part One of processing technology.

Such as the Chinese patent that notification number is CN206936039U, a kind of gear cold extrusion die, including upper die holder are disclosed And lower die holder, upper die holder bottom are equipped with dismountable seaming chuck, through-hole are equipped at lower die holder center, lower die holder is equipped with split type The lower cavity die of structure, the lower cavity die include left cavity plate and right cavity plate, and lower die holder is equipped with the location hole of several ring shapes setting, left Cavity plate and right cavity plate are fixed on lower die holder by positioning pin, left cavity plate and right cavity plate cooperatively form upper plenum, hollow cavity and under Cavity, upper plenum are back taper, and interior to be equipped with guide sleeve, which is that through-hole is equipped at back taper and center, in hollow cavity Equipped with tooth mould, inserted with push-down head moving up and down and mandril in lower cavity, which connects across lower die holder extension end There is dismountable pushing block, the lower cavity die, push-down head and seaming chuck are same central axis.When processing gear, blank is placed After in guide sleeve, mandril and push-down head play a supporting role to blank, then move downward upper die holder and seaming chuck, upper pressure Head presses downward to blank in tooth mould, forms blank, then makes mandril upward sliding, gear is released from tooth mould.

But in actual production process, after blank is pushed downwardly into tooth mould by seaming chuck, plastic deformation, molding occur for blank Gear side wall contacted with tooth mould and lower cavity die, when mandril pushes up gear, gear relative to tooth mould and lower cavity die to Upper sliding, gear side wall are prone to wear.And mandril is when releasing gear energetically, under thrust of the mandril to gear, gear with The contact position of mandril is easily deformed.Secondly, in extrusion process, gear surface still will appear a small amount of spine, gear relative to In tooth mould and lower cavity die sliding process, spine is easily snapped off, and is fallen in gear and tooth mould or between lower cavity die, and in gear Scratch is formed in gear surface relative in tooth mould and lower cavity die sliding process.Abrasion, deformation and scratch can all be unfavorable for gear Sale.

Utility model content

The purpose of this utility model is to provide a kind of fixed devices of gear forming for reducing gear destruction.

Gear forming fixed equipment that achieve the above purpose, the technical solution of the present invention is:, including rack, fixation Mechanism and support component, the feeding-passage being fixed in the rack above lower cavity die, the support component includes several Gap distribution and it is hinged on the support chip on feeding-passage in a ring, piston rod is fixed in the rack through feeding-passage side Wall and the support cylinder to offset with support chip lower part, be equipped in the support cylinder both ends be separately fixed at support cylinder inner wall and Support the reset spring on cylinder piston；The fixed mechanism include the water inlet water pump being each attached in rack, effluent water pump and Two fixation cylinders being fixed on the rack, the water inlet water pump and effluent water pump are connected to fixed cylinder, in the rack It is fixed with the piston two sides for being located at support cylinder and water inlet switch and effluent switch that the piston of cylinder is pressed can be supported, The water inlet switch and effluent switch can make to work into water water pump and effluent water pump after being pressed respectively；The work of two fixed cylinders Stopper rod is fixed with left cavity plate and right cavity plate respectively.

The principle of this programme is as follows:

Supporting the piston of cylinder can slide under the action of reset spring to outside support cylinder, support the piston rod of cylinder It is skidded off out of support cylinder, pushes support chip reversion, since support chip is distributed on lower cavity die in a ring, several support chip rotations The shape of similar funnel can be formed afterwards, and after blank is placed on support above, blank is supported the supporting role of piece, Bu Huiluo Enter in lower cavity die.

When blank relative to support chip to fall when, support chip by blank pressure act on, support chip is relative to charging Channel rotation, last support chip are affixed with feeding-passage inner wall, and blank can cross support chip and fall in feeding-passage.Due to branch The piston rod of support cylinder offsets with support chip lower part, so supporting the piston rod of cylinder to be supported piece during support chip rotates forward In push-in support cylinder, the piston of cylinder is supported to press water inlet switch, makes to start to work into water water pump.Water pump intake to fixed gas Water-filling in cylinder slides the piston of fixed cylinder to outside fixed cylinder, and left cavity plate and right cavity plate are slided to direction close to each other, Last blank is fallen into upper plenum from feeding-passage.

Blank is squeezed into gear, and after seaming chuck leaves feeding-passage, support chip is no longer influenced by the blocking of seaming chuck, The piston of support cylinder resets under the action of reset spring, and the piston of cylinder is supported to loosen water inlet switch, press effluent switch, Water inlet air pump, which stops working, goes out air and water pump starts to work, the water discharge in fixed cylinder, and left cavity plate and right cavity plate are to being located remotely from each other Direction sliding, left cavity plate and right cavity plate are separated with gear.

This programme has the beneficial effect that:

(1) Gear Processing is completed, and after the upward out feeding-passage of seaming chuck, supports the piston reset of cylinder, supports gas The piston of cylinder loosens water inlet switch, presses effluent switch, effluent water pump work, and left cavity plate and right cavity plate are to the side being located remotely from each other Sliding, gear separates with tooth mould and fixed block automatically, when taking out gear gear will not with tooth mould or with left cavity plate and right cavity plate Friction, can be to avoid gear wear.It falls between gear and tooth mould, can keep away secondly, can also avoid friction that burr is made to fracture Exempt from burr and leave scratch in gear surface, the sale of gear will not be caused to hinder.

(2) before Gear Processing, support chip tilts under the impetus of the piston of support cylinder, at this time support component class Like infundibulate, and support chip lower end is located in feeding-passage, so the section of support component top in the horizontal direction is greater than recessed The section of mold cavity in the horizontal direction, by blank be placed on support component top ratio be placed directly in it is more square in left cavity plate and right cavity plate Just, it is possible to realize quick feeding.

Preferred embodiment one is set in rack as the further improvement to base case there are two fixation hole, left cavity plate and the right side It is equipped with the location hole being aligned with fixation hole on cavity plate, be fixed in the rack while being connected to water inlet water pump and effluent water pump Positioning cylinder and the positioning plate that is fixed on the piston rod of positioning cylinder, be fixed with several pluggable positioning on the positioning plate Locating rod in hole and fixation hole.After water inlet switch is pressed, water inlet water pump while the water-filling into positioning cylinder can make to position Bar is inserted into location hole and fixation hole, so blank is horizontal under the pressure effect of seaming chuck when seaming chuck is pressed down against blank It can play the role of positioning to left cavity plate and right cavity plate and tooth mould, locating rod is squeezed to left cavity plate and right cavity plate, further keep away Exempt from left cavity plate and right cavity plate to far from one Slideslip of blank, guarantees that blank can be squeezed into gear.

Preferred embodiment two is equipped with tapping channel in rack as the further improvement to preferred embodiment one along the vertical direction, The tapping channel is located at below lower cavity die and positioning plate is located at below tapping channel, is fixed with and can protrude into out on the positioning plate Expect in channel and close the sprue of tapping channel.When positioning plate upward sliding, sprue enters in tapping channel, and it is logical to close discharging Road upper end, sprue can play a supporting role to the blank entered between left cavity plate and right cavity plate, also avoid blank logical from discharging Road leakage, after extruding, during positioning plate slide downward, gear can be with sprue slide downward.

Preferred embodiment three, as the further improvement to base case, rack is equipped with several guide grooves, left cavity plate and the right side Female bottom is respectively and fixedly provided with the guide pad being caught in guide groove.Guide groove plays the work of guiding to the sliding of left cavity plate and right cavity plate With avoiding left cavity plate and the sliding of right cavity plate from deviating, guarantee left cavity plate and right cavity plate to after direction sliding close to each other It can be bonded completely.

Preferred embodiment four leads support chip on the side wall of support cylinder as the further improvement to preferred embodiment three Equipped with dovetail groove, the piston rod of the support cylinder is hinged with the dovetails that can be slided along dovetail groove close to rotatable lamella one end.Swallow Tail block can not be skidded off out of dovetail groove, so support the piston of cylinder to contact always with support chip in support chip rotation process, and It is supported piece drive, and the piston rod of cylinder is supported not slide in the horizontal direction on support chip surface, support chip is avoided to occur Skew guarantees that support chip can play a supporting role to blank.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model gear forming fixed equipment embodiment；

Fig. 2 is the A-A of Fig. 1 to sectional view.

Specific embodiment

Utility model will be further described in detail below with reference to the attached drawings and specific embodiments:

Appended drawing reference are as follows: feeding-passage 1, holding tank 11, groove 12, support chip 2, dovetail groove 21, dovetails 22, support gas Cylinder 3, reset spring 31, water inlet switch 32, effluent switch 33, right cavity plate 4, location hole 41, fixed cylinder 5, rack 6, guide groove 61, guide pad 62, positioning plate 7, locating rod 71, sprue 72, positioning cylinder 8.

Gear forming fixed equipment, as depicted in figs. 1 and 2, including rack 6, fixed mechanism and support component, in rack 6 It is welded with feeding-passage 1, support component includes eight equally distributed support chips 2 in a ring, is hinged on charging in the middle part of support chip 2 The top in channel 1, support chip 2 can be rotated relative to lower cavity die 1, and 1 inner wall of feeding-passage is equipped with eight holding tanks 11, support chip 2 lower parts can be fallen into holding tank 11 when rotating to outside feeding-passage 1.It is welded with eight support cylinders 3 in rack 6, supports gas The piston rod of cylinder 3 runs through 1 side wall of feeding-passage.By taking the support chip 2 of the leftmost side and support cylinder 3 as an example, 2 left wall of support chip is set There is dovetail groove 21, the piston rod right end of support cylinder 3 is hinged with the dovetails 22 being caught in dovetail groove 21, so support cylinder 3 Piston rod will not be detached from support chip 2.1 inner wall of feeding-passage is equipped with eight grooves being located in eight holding tanks 11 12, after support chip 2 enters holding tank 11, dovetails 22 are located in groove 12.It supports and is equipped with reset spring 31 in cylinder 3, reset 31 both ends of spring are respectively welded on the inner wall of support cylinder 3 and the piston of support cylinder 3.

Fixed mechanism include two fixation cylinders 5 being welded in rack 6, be bolted in rack 6 into Water water pump and effluent water pump, two fixed cylinders 5 are located at 1 left and right sides of feeding-passage, the piston rod difference of fixed cylinder 5 It is welded on left cavity plate and right cavity plate 4.Water inlet water pump and effluent water pump pass through pipeline and are connected to two fixed cylinders 5.It is most left Water inlet switch 32 and effluent switch 33 are equipped in the support cylinder 3 of side, water inlet switch 32 and effluent switch 33 are located at support The left and right sides of the piston of cylinder 3 can press water inlet switch 32 when supporting the piston of cylinder 3 to slide to the left or to the right respectively With effluent switch 33.Water inlet switch 32 and effluent switch 33 in the present embodiment are normal open switch, water inlet switch 32 and water outlet Switch 33 is connected with water inlet water pump and effluent water pump respectively；So after the piston for being supported cylinder 3 is pressed, 32 He of water inlet switch It is in connected state in circuit where effluent switch 33, i.e., intake at this time water pump and effluent water pump start-up operation.Rack 6 Two guide grooves 61 are equipped with, left cavity plate and 4 bottom of right cavity plate are welded with the guide pad 62 being caught in guide groove 61.

Positioning plate 7 and positioning cylinder 8 are equipped with below left cavity plate and right cavity plate 4, positioning cylinder 8 is welded in rack 6, and into Air and water pump and out air and water pump are connected to by pipeline with positioning cylinder 8, and positioning plate 7 is welded on the piston of positioning cylinder 8, left cavity plate It is equipped with location hole 41 along the vertical direction on right cavity plate 4, sets that there are two can be aligned with two location holes 41 respectively in rack 6 Fixation hole is welded with two locating rods 71 on positioning plate 7 along the vertical direction, and two locating rods 71 are located under two fixation holes Side, when 8 upward sliding of positioning cylinder, 7 upward sliding of positioning plate, two locating rods 71 initially pass through two fixation holes respectively, then Across location hole 41.Rack 6 is equipped with the tapping channel for being located at 7 top of positioning plate, is welded with sprue 72, sprue on positioning plate 7 72 are located at below tapping channel, and the outer diameter of sprue 72 is equal to the internal diameter of tapping channel, so blocking up when 7 upward sliding of positioning plate Block 72 can be relative to tapping channel upward sliding, until the roof of sprue 72 and tapping channel top are contour, sprue 72 is closed out Expect channel upper end.

The fixed equipment of the present embodiment is using steps are as follows:

Water inlet water pump is connected to effluent water pump with power supply manually, when initial, supports the piston of cylinder 3 in reset spring 31 Under the action of slided to outside support cylinder 3, the piston rod of support cylinder 3 pushes support chip 2 to rotate, and forms the shape of similar funnel Shape, the distance between 2 lower part of adjacent supports piece is smaller at this time.Then blank is manually placed on support component inner circumferential, blank edge 2 slide downward of support chip, fall on the lower part of support chip 2, and be supported the supporting role of 2 lower part of piece and rest on support group In part.

Then manual control seaming chuck moves downward, and seaming chuck pushes blank to be downwardly into feeding-passage after contacting with blank In 1, thrust of 2 lower end of support chip by blank, support chip 2 is rotated.2 lower part of support chip will support the piston rod of cylinder 3 In push-in support cylinder 3, the piston of support cylinder 3 presses water inlet switch 32, and water inlet water pump is started to work, to fixed 5 He of cylinder It is filled with water in positioning cylinder 8, makes left cavity plate and right cavity plate 4 to far from fixed 5 one Slideslip of cylinder, most rear left cavity plate and right cavity plate 4 are affixed, and constitute cavity, and location hole 41 is aligned with fixation hole.At the same time, the piston rod of positioning cylinder 8 pushes positioning plate 7 upward Sliding, locating rod 71 are sequentially inserted into upwards in fixation hole and location hole 41, and sprue 72 slides up into tapping channel.

Seaming chuck continues slide downward, squeezes blank, blank crosses support chip 2 and falls on left cavity plate and right cavity plate 4 In the cavity of formation, deformation occurs under the extruding of seaming chuck for last blank, and in the tooth being fixed on left cavity plate and right cavity plate Gear is squeezed under the action of mould.Then manual control push-down head skids off feeding-passage 1 upwards, and support chip 2 is no longer influenced by The blocking of pressure head, support cylinder 3 piston can reset, support chip 2 rotate, support cylinder 3 piston loosen water inlet switch 32, Effluent switch 33 is pressed, the water discharge in fixed cylinder 5 and positioning cylinder 8, left cavity plate and right cavity plate 4 break away to far from gear one Dynamic, 7 slide downward of positioning plate, positioning plate 7 and sprue 72 skid off below fixation hole and tapping channel respectively, and gear passes through discharging Channel is dropped out with sprue 72.

Above-described is only preferred embodiments of the present invention, it is noted that for those skilled in the art For, without departing from the concept of the premise utility, several modifications and improvements can also be made, these also should be considered as this The protection scope of utility model, these all will not influence the effect and patent practicability of the utility model implementation.This is practical new Technology, shape, the construction portion of the omitted description of type are well-known technique.

Claims (5)

1. gear forming fixed equipment, which is characterized in that fixed in the rack including rack, fixed mechanism and support component There is the feeding-passage being located above lower cavity die, the support component includes several gap distributions in a ring and is hinged on feeding-passage On support chip, piston rod is fixed in the rack through feeding-passage side wall and the support gas that offsets with support chip lower part Cylinder, the support cylinder is interior to be separately fixed at support cylinder inner wall equipped with both ends and supports the reset spring on cylinder piston；Institute Stating fixed mechanism includes the water inlet water pump, effluent water pump and two fixation cylinders being fixed on the rack being each attached in rack, The water inlet water pump and effluent water pump are connected to fixed cylinder, and the piston for being located at support cylinder is fixed in the rack The water inlet switch and effluent switch that two sides and the piston that can be supported cylinder are pressed, the water inlet switch and effluent switch are pressed After can make to work into water water pump and effluent water pump respectively；The piston rod of two fixed cylinders is solid with left cavity plate and right cavity plate respectively It is fixed.

2. gear forming fixed equipment according to claim 1, which is characterized in that fixed there are two being set in the rack The location hole being aligned with fixation hole is equipped on hole, left cavity plate and right cavity plate, be fixed in the rack and meanwhile with water inlet water pump The positioning cylinder being connected to effluent water pump and the positioning plate being fixed on the piston rod of positioning cylinder are fixed on the positioning plate Locating rod in several pluggable location holes and fixation hole.

3. gear forming fixed equipment according to claim 2, which is characterized in that be equipped with along the vertical direction in the rack Tapping channel, the tapping channel is located at below lower cavity die and positioning plate is located at below tapping channel, fixed on the positioning plate There is the sprue that can protrude into tapping channel and close tapping channel.

4. gear forming fixed equipment according to claim 1, which is characterized in that the rack is equipped with several guiding Slot, left cavity plate and right female bottom are respectively and fixedly provided with the guide pad being caught in guide groove.

5. gear forming fixed equipment according to claim 3 or 4, which is characterized in that the support chip is close to support gas The side wall of cylinder is equipped with dovetail groove, and the piston rod of the support cylinder is hinged with close to rotatable lamella one end can be along dovetail groove sliding Dovetails.