阅读说明：本技术 一种铝合金轮毂智能铸造单元用耐高温工装 (High temperature resistant frock is used to aluminum alloy wheel hub intelligence casting unit ) 是由 余益民 徐福孙 张晓峰 憨钊华 刘伟 候钦成 于 2021-07-10 设计创作，主要内容包括：一种铝合金轮毂智能铸造单元用耐高温工装,涉及铝合金轮毂铸造领域,设有安装梁,安装梁上设有支撑柱,支撑柱上设有支撑滑杆,支撑滑杆上设有左夹持臂和右夹持臂,左夹持臂和右夹持臂之间设有夹持油缸,左夹持臂和右夹持臂上分别设有左弹性夹片和右弹性夹片,左弹性夹片上经轴承设有左前夹持滑轮和左后夹持滑轮,右弹性夹片上经轴承设有右前夹持滑轮和右后夹持滑轮；安装梁后侧中部设有机械臂连接座；左前夹持滑轮、左后夹持滑轮、右前夹持滑轮和右后夹持滑轮上设有隔热腔,隔热腔内设有相变材料。本发明具有结构简单、夹持稳定、耐高温、使用寿命长等优点。(A high-temperature-resistant tool for an intelligent aluminum alloy hub casting unit relates to the field of aluminum alloy hub casting, and is provided with an installation beam, wherein a support column is arranged on the installation beam, a support slide rod is arranged on the support column, a left clamping arm and a right clamping arm are arranged on the support slide rod, a clamping oil cylinder is arranged between the left clamping arm and the right clamping arm, a left elastic clamping piece and a right elastic clamping piece are respectively arranged on the left clamping arm and the right clamping arm, a left front clamping pulley and a left rear clamping pulley are arranged on the left elastic clamping piece through a bearing, and a right front clamping pulley and a right rear clamping pulley are arranged on the right elastic clamping piece through a bearing; the middle part of the rear side of the mounting beam is provided with a mechanical arm connecting seat; and a heat insulation cavity is arranged on the left front clamping pulley, the left rear clamping pulley, the right front clamping pulley and the right rear clamping pulley, and a phase change material is arranged in the heat insulation cavity. The invention has the advantages of simple structure, stable clamping, high temperature resistance, long service life and the like.)

1. A high-temperature resistant tool for an intelligent aluminum alloy hub casting unit is provided with a mounting beam and is characterized in that support columns are respectively arranged at the left end and the right end of the front side of the mounting beam, a support slide bar is arranged at the front part of the two support columns, a left clamping arm and a right clamping arm which can freely slide left and right on the support slide bar are arranged on the support slide bar, a guide chute is arranged at the front side of the mounting beam, a guide wheel which is positioned in the guide chute and can freely slide left and right is arranged at the rear end of the left clamping arm and the right clamping arm respectively, a clamping oil cylinder is arranged between the left clamping arm and the right clamping arm between the mounting beam and the support slide bar, an arc-shaped left elastic clamping piece and an arc-shaped right elastic clamping piece are respectively arranged on the opposite sides of the front parts and the rear parts of the left clamping arm and the right clamping piece, a left front clamping pulley and a left rear clamping pulley are respectively arranged on the front end and the rear end of the right side of the left elastic clamping piece through bearings, the front end and the rear end of the left side of the right elastic clamping piece are respectively provided with a right front clamping pulley and a right rear clamping pulley through bearings, and the left front clamping pulley, the left rear clamping pulley, the right front clamping pulley and the right rear clamping pulley are positioned on the same circle; the middle part of the rear side of the mounting beam is provided with a mechanical arm connecting seat; the left clamping seat is arranged on the front end part and the rear end part on the right side of the left elastic clamping piece respectively, the connecting sliding hole is arranged on the right side of the left clamping seat, a buffer connecting pin capable of freely sliding left and right is arranged in the connecting sliding hole, a buffer pressure spring is arranged between the left end of the buffer connecting pin and the bottom wall of the connecting sliding hole, and two ends of the buffer pressure spring are fixedly connected with the left end of the buffer connecting pin and the bottom wall of the connecting sliding hole respectively; the right end part of the buffer connecting pin is provided with a pulley mounting seat, and the left front clamping pulley and the left rear clamping pulley are respectively mounted on the pulley mounting seat through bearings; the front end part and the rear end part of the left side of the right elastic clamping piece are respectively provided with a right clamping seat, the left side of the right clamping seat is provided with a connecting sliding hole, a buffer connecting pin capable of freely sliding left and right is arranged in the connecting sliding hole, a buffer pressure spring is arranged between the right end of the buffer connecting pin and the bottom wall of the connecting sliding hole, and two ends of the buffer pressure spring are respectively fixedly connected with the right end of the buffer connecting pin and the bottom wall of the connecting sliding hole; a pulley mounting seat is arranged at the left end part of the buffer connecting pin, and the right front clamping pulley and the right rear clamping pulley are respectively mounted on the pulley mounting seat through bearings; and the left front clamping pulley, the left rear clamping pulley, the right front clamping pulley and the right rear clamping pulley are provided with heat insulation cavities, and phase change materials are arranged in the heat insulation cavities.

2. The high-temperature-resistant tool for the intelligent aluminum alloy hub casting unit according to claim 1, wherein the left clamping arm and the right clamping arm are respectively provided with a linear bearing arranged in the left-right direction, and the support slide rod freely slides left and right in the linear bearings arranged on the left clamping arm and the right clamping arm.

3. The high-temperature-resistant tool for the intelligent aluminum alloy hub casting unit according to claim 1 or 2, wherein an oil cylinder seat is arranged in the middle of the front side of the mounting beam, the clamping oil cylinder is a double-piston type double-rod oil cylinder, a cylinder barrel of the double-piston type double-rod oil cylinder is fixedly mounted on the oil cylinder seat, and the end parts of two piston rods of the double-piston type double-rod oil cylinder are respectively connected with the left clamping arm and the right clamping arm.

4. The high-temperature-resistant tool for the intelligent aluminum alloy hub casting unit according to claim 3, wherein a hydraulic slewing bearing is arranged between the middle part of the rear side of the mounting beam and the mechanical arm connecting seat.

Technical Field

The invention relates to the field of tools for casting aluminum alloy hubs, in particular to a high-temperature-resistant tool for an intelligent aluminum alloy hub casting unit, which is simple in structure, stable in clamping and long in service life.

Background

As people know, with the development and progress of society, the automation degree of industrial production is higher and higher, and the industrial automation solves the limitation caused by a plurality of manual production. Current automobile aluminum alloy wheel hub uses the centre gripping frock with the fixed back of aluminum alloy wheel hub blank centre gripping of cast molding's high temperature, transports and carries out cooling in the cooling trough in the casting process, and aluminum alloy wheel hub after the cooling just can further detection, finishing processing. Current aluminum alloy wheel hub's intelligent casting unit includes six degree of freedom arms and centre gripping frock, and the structure of centre gripping frock is: the hub clamping device is provided with four vertically arranged cylindrical clamping arms, the four clamping arms are connected with a driving device, and the driving device drives the four clamping arms to horizontally move so as to clamp and release the hub; the lower part of the clamping arm is provided with a clamping pulley matched with the wheel hub rim through a bearing. Because the working environment of a casting workshop is severe, high temperature, dust, collision and abrasion in the use process and the like easily cause that the clamping points of the four clamping pulleys are not concentric and are not on a circle, a hub is easy to deviate and incline or even slide off due to uneven stress, a bearing between the clamping pulley and the clamping arm is easy to damage under the repeated high-temperature action, and the service life is short.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides the high-temperature-resistant tool for the intelligent aluminum alloy hub casting unit, which is simple in structure, is in elastic contact with a hub, is stable in clamping, and has a low bearing working temperature and a long service life.

The technical scheme adopted by the invention for solving the defects of the prior art is as follows:

a high-temperature resistant tool for an intelligent aluminum alloy hub casting unit is provided with a mounting beam and is characterized in that support columns are respectively arranged at the left end and the right end of the front side of the mounting beam, a support slide bar is arranged at the front part of the two support columns, a left clamping arm and a right clamping arm which can freely slide left and right on the support slide bar are arranged on the support slide bar, a guide chute is arranged at the front side of the mounting beam, a guide wheel which is positioned in the guide chute and can freely slide left and right is arranged at the rear end of the left clamping arm and the right clamping arm respectively, a clamping oil cylinder is arranged between the left clamping arm and the right clamping arm between the mounting beam and the support slide bar, an arc-shaped left elastic clamping piece and an arc-shaped right elastic clamping piece are respectively arranged on the opposite sides of the front parts and the rear parts of the left clamping arm and the right clamping arm, the concave surfaces of the left elastic clamping piece and the right elastic clamping piece are opposite, a left front clamping pulley and a left rear clamping pulley are respectively arranged on the front end and the rear end of the left side of the right elastic clamping piece through bearings respectively, the left front clamping pulley, the left rear clamping pulley, the right front clamping pulley and the right rear clamping pulley are positioned on the same circle; the middle part of the rear side of the mounting beam is provided with a mechanical arm connecting seat; the left clamping seat is arranged on the front end part and the rear end part on the right side of the left elastic clamping piece respectively, the connecting sliding hole is arranged on the right side of the left clamping seat, a buffer connecting pin capable of freely sliding left and right is arranged in the connecting sliding hole, a buffer pressure spring is arranged between the left end of the buffer connecting pin and the bottom wall of the connecting sliding hole, and two ends of the buffer pressure spring are fixedly connected with the left end of the buffer connecting pin and the bottom wall of the connecting sliding hole respectively; the right end part of the buffer connecting pin is provided with a pulley mounting seat, and the left front clamping pulley and the left rear clamping pulley are respectively mounted on the pulley mounting seat through bearings; the front end part and the rear end part of the left side of the right elastic clamping piece are respectively provided with a right clamping seat, the left side of the right clamping seat is provided with a connecting sliding hole, a buffer connecting pin capable of freely sliding left and right is arranged in the connecting sliding hole, a buffer pressure spring is arranged between the right end of the buffer connecting pin and the bottom wall of the connecting sliding hole, and two ends of the buffer pressure spring are respectively fixedly connected with the right end of the buffer connecting pin and the bottom wall of the connecting sliding hole; a pulley mounting seat is arranged at the left end part of the buffer connecting pin, and the right front clamping pulley and the right rear clamping pulley are respectively mounted on the pulley mounting seat through bearings; and the left front clamping pulley, the left rear clamping pulley, the right front clamping pulley and the right rear clamping pulley are provided with heat insulation cavities, and phase change materials are arranged in the heat insulation cavities.

The left clamping arm and the right clamping arm are respectively provided with a linear bearing arranged in the left-right direction, and the support sliding rod freely slides left and right and penetrates through the linear bearings on the left clamping arm and the right clamping arm. The friction resistance is small, and the operation is smoother.

The middle part of the front side of the mounting beam is provided with an oil cylinder seat, the clamping oil cylinder is a double-piston type double-rod oil cylinder, a cylinder barrel of the double-piston type double-rod oil cylinder is fixedly arranged on the oil cylinder seat, and the end parts of two piston rods of the double-piston type double-rod oil cylinder are respectively connected with the left clamping arm and the right clamping arm. Simple structure, good centering performance and high running precision.

A hydraulic slewing bearing is arranged between the middle part of the rear side of the mounting beam and the mechanical arm connecting seat. The hydraulic slewing bearing can drive the mounting beam to rotate, and the cooling water retained in the aluminum alloy hub blank is poured out, so that the cooling water is prevented from dropping outside the cooling water tank, and the environment is protected.

When the automatic casting transfer robot is used, the mechanical arm connecting seat is connected with an arm of the casting transfer robot, and the clamping oil cylinder is connected with a hydraulic source through the controller. The casting transfer robot is with left front centre gripping pulley, left back centre gripping pulley, right front centre gripping pulley and right back centre gripping pulley remove to the aluminum alloy wheel hub blank periphery of casting fashioned high temperature, centre gripping hydro-cylinder work, drive left centre gripping arm and right centre gripping arm relative motion on supporting the slide bar, left front centre gripping pulley, left back centre gripping pulley, right front centre gripping pulley and right back centre gripping pulley centre gripping are around the aluminum alloy wheel hub blank, left side elasticity clamping piece and right elasticity clamping piece and wheel hub elastic contact, play the buffering, the effect of four centre gripping pulley pinch points of small-range change, the centre gripping is more stable. The structure of left grip slipper, right grip slipper and buffering connecting pin, buffering pressure spring has further improved the changeability of centre gripping pulley, left back centre gripping pulley, right front centre gripping pulley and right back centre gripping pulley and aluminum alloy wheel hub blank contact point before the left side in the use, improves the fault-tolerant rate, and the centre gripping is more stable. After the high-temperature aluminum alloy wheel hub blank is clamped by the left front clamping pulley, the left rear clamping pulley, the right front clamping pulley and the right rear clamping pulley in a matching manner, heat is transferred to the phase-change material, the phase-change material is subjected to phase change and absorbs a large amount of heat, the heat is delayed to be transferred to the bearing, the working temperature of the bearing is reduced, the bearing is protected, and the service life is prolonged. When the left front clamping pulley, the left rear clamping pulley, the right front clamping pulley and the right rear clamping pulley enter cooling water for cooling or natural cooling, the phase change material is subjected to phase change and releases heat.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural diagram of the left clamping seat, the buffer connecting pin, the buffer compression spring, the pulley mounting seat and the left front clamping pulley in the invention.

FIG. 3 is a schematic structural view of the aluminum alloy hub of the present invention in use.

Detailed Description

As shown in figures 1-3, the high temperature resistant tool for the intelligent casting unit of the aluminum alloy hub is provided with a long strip-shaped mounting beam 11, the left and right ends of the front side of the mounting beam 11 are respectively provided with a support column 8 extending forwards, the front parts of the two support columns 8 are provided with a support slide bar 6 which is parallel to the mounting beam 11 and horizontally arranged left and right, the support slide bar 6 is sleeved with a left clamping arm 5 and a right clamping arm which can freely slide left and right on the support slide bar, the front side surface of the mounting beam 11 is provided with a horizontally arranged guide chute 10, the rear ends of the left clamping arm 5 and the right clamping arm are respectively provided with a guide wheel 9 which is positioned in the guide chute and can freely slide left and right, a clamping oil cylinder 12 is arranged between the left clamping arm 5 and the right clamping arm between the mounting beam 11 and the support slide bar 6, the opposite sides of the front parts of the left clamping arm 5 and the right clamping arm are respectively provided with a long strip-shaped, arc-shaped left elastic clamping piece 4 and a right elastic clamping piece, the concave surfaces of the left elastic clamping piece 4 and the right elastic clamping piece are opposite, a left front clamping pulley 1 and a left rear clamping pulley are respectively arranged at the front end and the rear end of the right side of the left elastic clamping piece 4 through bearings, a right front clamping pulley and a right rear clamping pulley are respectively arranged at the front end and the rear end of the left side of the right elastic clamping piece through bearings, and the left front clamping pulley, the left rear clamping pulley, the right front clamping pulley and the right rear clamping pulley are positioned on the same circle of the same horizontal plane; the middle part of the rear side of the mounting beam 11 is provided with a mechanical arm connecting seat 15. The front end part and the rear end part of the right side of the left elastic clamping piece 4 are respectively provided with a left clamping seat 3, the right side of the left clamping seat 3 is provided with a connecting sliding hole, a buffer connecting pin 19 capable of freely sliding left and right is arranged in the connecting sliding hole, a buffer pressure spring 20 is arranged between the left end of the buffer connecting pin 19 and the bottom wall of the connecting sliding hole, and two ends of the buffer pressure spring 20 are respectively fixedly connected with the left end of the buffer connecting pin 19 and the bottom wall of the connecting sliding hole; the right end part of the buffer connecting pin 19 is provided with a pulley mounting seat 2, and the left front clamping pulley 1 and the left rear clamping pulley are respectively mounted on the pulley mounting seat 7 through a bearing 17 and a wheel shaft 18; the front end part and the rear end part of the left side of the right elastic clamping piece are respectively provided with a right clamping seat, the left side of the right clamping seat is provided with a connecting sliding hole, a buffer connecting pin capable of freely sliding left and right is arranged in the connecting sliding hole, a buffer pressure spring is arranged between the right end of the buffer connecting pin and the bottom wall of the connecting sliding hole, and two ends of the buffer pressure spring are respectively fixedly connected with the right end of the buffer connecting pin and the bottom wall of the connecting sliding hole; the left end part of the buffer connecting pin is provided with a pulley mounting seat, and the right front clamping pulley and the right rear clamping pulley are respectively mounted on the pulley mounting seat through bearings. When the clamping points of the left front clamping pulley, the left rear clamping pulley, the right front clamping pulley and the right rear clamping pulley are not concentric and are not on a circle, the left front clamping pulley, the left rear clamping pulley, the right front clamping pulley and the right rear clamping pulley are not uniformly received in the contact clamping process of the hubs, the buffer connecting pins compress the buffer pressure springs, the positions of the clamping pulleys connected with the buffer pressure springs are changed, the clamping forces among the left front clamping pulley, the left rear clamping pulley, the right front clamping pulley and the right rear clamping pulley and the hubs are uniform, the clamping is not prone to deflection, and the clamping is more stable. And the left front clamping pulley, the left rear clamping pulley, the right front clamping pulley and the right rear clamping pulley are provided with heat insulation cavities, and phase change materials 16 are arranged in the heat insulation cavities. After the high-temperature aluminum alloy wheel hub blank is clamped by the left front clamping pulley, the left rear clamping pulley, the right front clamping pulley and the right rear clamping pulley in a matching manner, heat is transferred to the phase change material 16, the phase change material 16 is subjected to phase change and absorbs a large amount of heat, the heat is delayed to be transferred to the bearing, the bearing is protected, and the service life is prolonged. When the left front clamping pulley, the left rear clamping pulley, the right front clamping pulley and the right rear clamping pulley enter cooling water for cooling or natural cooling, the phase change material is subjected to phase change and releases heat.

The invention is further improved, the left clamping arm 5 and the right clamping arm are respectively provided with a linear bearing 7 arranged in the left-right direction, and a support slide bar 6 freely slides left and right and is arranged in the linear bearings 7 on the left clamping arm and the right clamping arm in a penetrating way; the friction resistance is small, and the operation is smoother. An oil cylinder seat 13 is arranged in the middle of the front side of the mounting beam 11, the clamping oil cylinder 12 is a double-piston type double-rod oil cylinder, a cylinder barrel of the double-piston type double-rod oil cylinder is fixedly arranged on the oil cylinder seat 13, and the end parts of two piston rods of the double-piston type double-rod oil cylinder are respectively connected with a left clamping arm and a right clamping arm; simple structure, good centering performance and high running precision.

The invention is further improved, and a hydraulic slewing bearing 14 is arranged between the middle part of the rear side of the mounting beam 11 and the mechanical arm connecting seat 15. The hydraulic slewing bearing 14 can drive the mounting beam 11 to rotate, so that cooling water remained in the aluminum alloy hub blank is poured out, the cooling water is prevented from dropping outside the cooling water tank, and the environment is protected.

When the automatic casting transfer robot is used, the mechanical arm connecting seat is connected with an arm of the casting transfer robot, and the clamping oil cylinder is connected with a hydraulic source through the controller. The casting transfer robot is with left front centre gripping pulley, left back centre gripping pulley, right front centre gripping pulley and right back centre gripping pulley remove to the aluminum alloy wheel hub blank periphery of casting fashioned high temperature, centre gripping hydro-cylinder work, drive left centre gripping arm and right centre gripping arm relative motion on supporting the slide bar, left front centre gripping pulley, left back centre gripping pulley, right front centre gripping pulley and right back centre gripping pulley centre gripping are around the aluminum alloy wheel hub blank, left side elasticity clamping piece and right elasticity clamping piece and wheel hub elastic contact, play the buffering, the effect of four centre gripping pulley pinch points of small-range change, the centre gripping is more stable. The structure of left grip slipper, right grip slipper and buffering connecting pin, buffering pressure spring has further improved the changeability of centre gripping pulley, left back centre gripping pulley, right front centre gripping pulley and right back centre gripping pulley and aluminum alloy wheel hub blank contact point before the left side in the use, improves the fault-tolerant rate, and the centre gripping is more stable. The phase-change material delays the transmission of high temperature to the bearing, reduces the working temperature of the bearing and prolongs the service life of the bearing. The invention has the advantages of simple structure, elastic contact with the hub, stable clamping, low bearing working temperature, long service life and the like.