CN207723437U - Filter screen placing clamp for aluminum-alloy wheel casting die - Google Patents

Abstract

The utility model is related to aluminum-alloy wheel casting fields, particularly for the filter screen placing clamp of aluminum-alloy wheel casting die.During low pressure casting method casting wheel, filter screen is placed generally at cast gate to remove the field trash contained by molten aluminum, generally use manual operations, inconvenient when placing filter screen, is not easy to be aligned, put just.The utility model includes handle, clamp arm, arc pawl；There are two clamp arm tools, and arc pawl is located at clamp arm front end, and the arc of two arc pawls of two clamp arm front ends is opposite；Pointed tooth or perpendicular tooth are equipped on the inside of the arc pawl.Filter screen is clamped by designing, using special fixture in the utility model, easily it can accurately, be by rights placed at cast gate, filter screen will not bias, and round mouth portion can be bonded completely with cast gate edge, there is no gap, molten aluminum is made all to flow through filter screen filtration.

Description

Filter screen placing clamp for aluminum-alloy wheel casting die

Technical field

It is specifically a kind of for aluminum-alloy wheel casting die the utility model is related to aluminum-alloy wheel casting field Filter screen places auxiliary device.

Background technology

The casting process of aluminum-alloy wheel has low pressure casting method, gravitation casting method, pressure casting method, squeeze casting method etc., Its mesolow（Differential pressure）Casting is bottom filling filling, fills that type is more steady, and the pressure during filling velocity and solidification can root It is adjusted according to the characteristics of casting and casting mold, is used in combination program to control, reduces artificial subjective factor.Low pressure casting method technique is steady Fixed, cast gate plays riser simultaneously, and stock utilization is high, and molten aluminum solidifies under pressure, cast structure densification, mechanical performance It is good, there is high elongation percentage, casting is mingled with, stomata, pin hole, it is loose the defects of it is few, qualification rate is high, therefore is widely answered With.

During low pressure casting method casting wheel, since there are field trashes in molten aluminum, not only to the fatigability of wheel Energy, impact flexibility, elongation percentage produce strong influence, also reduce melt flow, deteriorate casting character, workpiece is made easily to open It splits, directly affects the security performance of wheel.Field trash in molten aluminum is involved in casting, and brown or ash are had after machined smart car The defects of slag point of black, the casting of slag inclusion point can form point, pin hole in postorder processing, directly affect product appearance, Performance.Therefore, the field trash contained by molten aluminum should be filtered out in Mold Filling Process, generally by placing iron wire filtering at cast gate Net, foam ceramic filter or cylindrical fiber filter screen etc., to remove the field trash contained by molten aluminum.Above-mentioned filter screen is logical when placing Frequently with manual operations, fitting is not tight, dangerous high, inconvenient, especially hemispherical iron wire filter screen, and spherical is outer Wire side grasps difficult, is not easy to be aligned, put just, causes to filter insufficient, cannot effectively filter out the impurity in raw material.

Invention content

The purpose of this utility model is：A kind of filter screen placing clamp for aluminum-alloy wheel casting die is developed, It is simple in structure, easy to use, can filter screen be quickly and accurately placed into designated position.

Used technical solution is to solve above-mentioned technical problem：Filter screen for aluminum-alloy wheel casting die is put Set fixture, it is characterised in that：

Including handle, clamp arm, arc pawl；

There are two clamp arm tools, and arc pawl is located at clamp arm front end, and the arc of two arc pawls of two clamp arm front ends is opposite；

There are handle two support arms, two support arm one end to combine, and the other end is connect with the other end of two clamp arm respectively.

Pointed tooth or perpendicular tooth are equipped on the inside of the arc pawl.

Circle centre position of the pointed tooth towards arc pawl.

The longitudinal section at the pointed tooth tip is in obtuse angle.

Two support arm one end of the handle are fixedly connected, and the other end opens；Two support arms are made of elastic material.

The support arm of the clamp arm and handle is hinged.

The clamp arm is vertical with arc pawl.

The handle is openable and closable scissor shape, and scissor shape handle is laterally or longitudinally placed；Scissor shape handle tail end is equipped with Finger ring, for holding and controlling handle opening-closing.

The utility model has the beneficial effects that：Filter screen is clamped by designing, using special fixture, it is convenient to will It is accurate, is by rights placed at cast gate, and filter screen will not bias, and round mouth portion can be bonded completely with cast gate edge, not had Gap makes molten aluminum all flow through filter screen filtration.

Description of the drawings

Fig. 1 is the structural schematic diagram of the utility model embodiment one；

Fig. 2 is arc pawl in the utility model embodiment one（Pointed tooth or perpendicular tooth）Structural schematic diagram；

Fig. 3 is the structural schematic diagram of the utility model embodiment two；

Fig. 4 is the structural schematic diagram that clamp arm is hinged with support arm in Fig. 3 the utility model embodiments two；

Fig. 5 is the structural schematic diagram of the utility model embodiment three.

Wherein：1 handle, 2 clamp arm, 3 arc pawls, 4 pointed tooths, 5 finger rings.

Specific implementation mode

Embodiment one：

As shown in Figure 1, the filter screen placing clamp for aluminum-alloy wheel casting die described in the present embodiment, including hand Handle, clamp arm, arc pawl；There are two clamp arm tools, and arc pawl is located at clamp arm front end, the arc phase of two arc pawls of two clamp arm front ends It is right；There are handle two support arms, two support arm one end to combine, and the other end is connect with the other end of two clamp arm respectively.Two support arms combine One end, combination can be any of form, such as riveting, bolt, welding, fitting.

In use, filter screen is first placed on two arc pawl centre positions, hand-held handle is simultaneously clutched, and clamp arm, arc pawl are made It draws close, clamp to filter screen；Then filter screen is placed at the cast gate of mold.

Such as Fig. 2, further, be equipped with to prevent filter screen from being slipped between two arc pawls, on the inside of the arc pawl pointed tooth or Perpendicular tooth, the tooth can clamp in the gap of filter screen, and holding does not make its slippage.The tooth can be multiple points laterally or longitudinally arranged Tooth can also be the perpendicular tooth or any other regular or irregular protrusion, rough surface of arcuately pawl inner wall longitudinal arrangement Deng, effect be to prevent filter screen from slipping.

Further, the circle centre position of the pointed tooth towards arc pawl is in radiation with the center of circle after pointed tooth is clamped into filtering gap The pointed tooth of shape arranged radially and filter screen circumferential surface are perpendicular, its friction between filter screen is minimum when release, will not hook filtering Net causes to place failure.

Further, the longitudinal section at the pointed tooth tip is in obtuse angle.According to as described above, the pointed tooth of obtuse angled cross-section can be kept away Exempt from pointed tooth to be sandwiched in filter screen gap, to trigger filter screen.

Embodiment two：

As shown in Figure 3,4, on the basis of above-described embodiment, two support arm one end of handle described in the present embodiment are fixedly connected, Compression can be used, the mode of fitting keeps two support arm one end strong bonded, other end opening；Two support arms are made of elastic material, Support arm is forced to automatically restore after drawing close, to unclamp filter screen.

Further, the support arm of the clamp arm and handle is hinged.The two is being fixedly connected, hand-held handle end It can only rely on and feel, to judge whether front end arc pawl is bonded with cast gate end face, easily to put filter screen partially；Be compared to clamp arm with The mode that support arm is fixedly connected, the two is connected using articulated manner, then during placing filter screen, need to only exert a force downwards pressing Handle, can movable clamp arm the pressure above it can be balancedly assigned to the both ends of arc pawl, to make filter screen it is proper, It is snugly placed on the end face at cast gate, not will produce gap.

Further, the clamp arm is vertical with arc pawl, when exerting a force downwards to avoid handle, clamp arm is caused to roll.

Embodiment three：

As shown in figure 5, on the basis of above-described embodiment, handle described in the present embodiment is openable and closable scissor shape, scissor shape Handle is laterally or longitudinally placed；Scissor shape handle tail end is equipped with finger ring, for holding and controlling handle opening-closing.In practical application mistake Cheng Zhong, relatively far away from, therefore, above-mentioned handle is generally arranged longer the gate location of the positional distance mold of operator, with side Just filter screen is placed.But the handle increased causes the arm of force long, and the chucking power of front end clamp arm is opposite to be weakened, mistake in placement process Strainer is easy to fall off, and handgrip part is to when Forward, and operator's distance can be made to pour and make a slip of the tongue close, and danger increases.The present embodiment institute It states handle and uses scissor shape, can be exerted a force with handle end, chucking power is relatively large, and entire handle constitutes the extension of arm, side Just placement operation.

Claims (8)

1. the filter screen placing clamp for aluminum-alloy wheel casting die, it is characterised in that：

Including handle, clamp arm, arc pawl；

There are two clamp arm tools, and arc pawl is located at clamp arm front end, and the arc of two arc pawls of two clamp arm front ends is opposite；

There are handle two support arms, two support arm one end to combine, and the other end is connect with the other end of two clamp arm respectively.

2. the filter screen placing clamp according to claim 1 for aluminum-alloy wheel casting die, it is characterised in that：

Pointed tooth or perpendicular tooth are equipped on the inside of the arc pawl.

3. the filter screen placing clamp according to claim 2 for aluminum-alloy wheel casting die, it is characterised in that：

Circle centre position of the pointed tooth towards arc pawl.

4. the filter screen placing clamp according to claim 3 for aluminum-alloy wheel casting die, it is characterised in that：

The longitudinal section at the pointed tooth tip is in obtuse angle.

5. the filter screen placing clamp for aluminum-alloy wheel casting die according to Claims 1-4 any claim Tool, it is characterised in that：

Two support arm one end of the handle are fixedly connected, and the other end opens；Two support arms are made of elastic material.

6. the filter screen placing clamp according to claim 5 for aluminum-alloy wheel casting die, it is characterised in that：

The support arm of the clamp arm and handle is hinged.

7. the filter screen placing clamp according to claim 6 for aluminum-alloy wheel casting die, it is characterised in that：

The clamp arm is vertical with arc pawl.

8. the filter screen placing clamp for aluminum-alloy wheel casting die according to Claims 1-4 any claim Tool, it is characterised in that：

The handle is openable and closable scissor shape, and scissor shape handle is laterally or longitudinally placed；Scissor shape handle tail end is equipped with finger ring, For holding and controlling handle opening-closing.