CN113415737A - Cantilever beam for changing wheel rolling die - Google Patents
Cantilever beam for changing wheel rolling die Download PDFInfo
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- CN113415737A CN113415737A CN202110714517.7A CN202110714517A CN113415737A CN 113415737 A CN113415737 A CN 113415737A CN 202110714517 A CN202110714517 A CN 202110714517A CN 113415737 A CN113415737 A CN 113415737A
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- die
- support arm
- filling
- supporting arm
- main shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/14—Particular arrangements for handling and holding in place complete dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
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- Mechanical Engineering (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
A cantilever beam for wheel roll-type die change, comprising: the lifting mechanism, the upright post assemblies which are vertically arranged and the bearing beam connected with the upright post assemblies; the upright post assembly and the bearing beam form a cantilever beam structure integrally; the fixed end of the bearing beam is vertically and fixedly connected with the upright post assembly, the free end of the bearing beam is positioned above the roll forming machine, and the hoisting mechanism drives the lifting hook to move along the length direction of the bearing beam; the lifting hook is used for being connected with a machine table main shaft of the roll forming machine; the upright post assembly is provided with a die-filling supporting arm, the fixed end of the die-filling supporting arm is connected with the upright post assembly, and the free end of the die-filling supporting arm is used for extending into or leaving the rolling die; the free end of the die-filling support arm is of a stepped shaft structure, and the free end of the die-filling support arm is provided with a stage for being connected with a lifting hook. The cantilever beam for storing and installing the rolling die is provided by the invention, so that the function of smoothly pushing the rolling die to the lifting hook from a storage position is fulfilled.
Description
Technical Field
The invention relates to the field of wheel equipment, in particular to a cantilever beam for changing a wheel rolling die.
Background
Adopt the overhead traveling crane cooperation to transport and change when passenger car steel wheel rim roll type mould changes frock, the roll type mould retooling time of one set or three sets of roll type machines is long, influences equipment mobility and production efficiency. Because the overhead traveling crane is generally built at the factory building top, and with the ground working distance overlength, need visual going on, so direction altitude control on perpendicular ground is difficult, and the type of the wire rope handling of overhead traveling crane is rolled and is also difficult to realize centering in front and back, left and right sides and the aspect of height with the roll forming machine main shaft moreover, is unfavorable for the quick accurate change of mould, just has great operation potential safety hazard.
The replacement work of the rolling die is generally that large-scale hoisting equipment such as a crown block and the like is directly transferred to the rolling die machine from the storage position of the rolling die, and is lifted down from the rolling die machine during die unloading. The crown block is generally provided with a ring-shaped flexible belt at the bottom, so that a rolling die is lifted to a machine table main shaft, and the end screw thread of the main shaft of the rolling die is easily damaged by improper operation. Especially, when the three roll forming machines are replaced on the whole line, the distance of the running line of the crown blocks in the factory building is long, the crown blocks can be replaced one by one, the die replacement work is very strong in dependence on the crown blocks, and in addition, the crown blocks are not suitable for being arranged above the roll forming machines in all the factory buildings. Therefore, an intermediate device capable of storing the rolling die is needed, the crown block only needs to transport the rolling die to the intermediate device, the intermediate device can transport the rolling die to the rolling machine from the intermediate device, the dependence of die changing of the rolling machine on the crown block is reduced, and the intermediate device can be operated to realize autonomous die changing.
Although various small-sized hoisting devices are available on the market as compared with an overhead traveling crane, and the design of an intermediate facility for storing the roll type mold is difficult, it is difficult to transfer the roll type mold from the intermediate facility to the hoisting device. Otherwise, the type of the lifting device is changed, and the die changing efficiency is not further improved.
The lifting hook capable of being lifted by the lifting device is developed, and is used for enabling the rolling die to be lapped on the machine table main shaft from the lifting hook. As shown in fig. 1, the hook includes a hanger main shaft 5, and the hanger main shaft 5 includes a convex portion 53, a bridge portion 52, a hanger main shaft portion 51, and a support bracket.
The lifting appliance main shaft 5 extends into the through hole of the rolling mould from the end of the convex part 53, the rolling mould is supported by the lifting appliance main shaft part 51, one end of the lifting appliance main shaft part 51 is blocked by the supporting frame, and the top of the supporting frame is connected with the lifting device. The spreader spindle is formed by transversely and vertically cutting the end of a horizontally disposed cylinder to form an incomplete cylinder at the end, which is used as the lap joint 52. As shown in fig. 3, the lap joint portion 52 is lapped on the step section 62 of the machine main shaft, so that the height of the rolling mold supported by the spreader main shaft 5 is the same as the height of the rolling mold supported by the machine main shaft. The stage 62 is formed by extending the main body 61 of the main shaft of the machine table of the locking roll mold. The protruding part 53 is extended into the tool withdrawal groove of the machining table stage 62 of the machine table spindle, so that the machine table spindle can hook the protruding part 23, and the axial displacement or the separation of the machine table spindle and the protruding part is prevented, and the operation safety is prevented from being influenced.
In addition, a lifting appliance main shaft of the lifting hook is sleeved with a machine table main shaft, and the lifting appliance main shaft is a circular ring and sleeved on a table stage at the end part of the machine table main shaft. For example, the application number is CN201420661860.5, the application date is 2014, 11 and 17, and the name is Chinese utility model patent of rim rolling die-changing tool. When the connecting sleeve is used, the connecting sleeve and a similar lifting appliance main shaft are screwed onto a main shaft of a roll forming machine, the rolling die is lifted by the lifting hook, then the lifting hook is inserted into the connecting sleeve and fixed by the connecting pin, the height of the lifting hook is adjusted, finally the rolling die is pushed onto the main shaft of the roll forming machine, the connecting sleeve is removed, and then the rolling die is fixed on the main shaft by the nut
The lifting hook is in a structure that the end part of the machine table main shaft is a stepped shaft, so that the lifting hook is connected with the machine table main shaft in various forms, and the intermediate equipment for storing the rolling die can be provided.
Disclosure of Invention
The invention provides a cantilever beam for changing a wheel rolling die to solve the problems.
In order to achieve the purposes of shortening the die change time and reducing the design requirement of a crown block, the invention adopts the following specific technical scheme:
a cantilever beam that wheel roll type mould retooling was used for support the lifting hook and shift roll type mould, includes: the lifting mechanism, the upright post assemblies which are vertically arranged and the bearing beam which is connected with the upright post assemblies;
the upright post assembly and the bearing beam form a cantilever beam structure integrally;
the fixed end of the bearing beam is vertically and fixedly connected with the upright post assembly, and the free end of the bearing beam is positioned above the roll forming machine;
the hoisting mechanism moves along the bearing beam and is used for hoisting the lifting hook;
the upright post assembly is provided with a die-filling supporting arm, the fixed end of the die-filling supporting arm is connected with the upright post assembly, and the free end of the die-filling supporting arm is used for extending into or leaving the rolling die;
the free end of the die-filling support arm is of a stepped shaft structure, the free end of the die-filling support arm comprises a support arm step which extends outwards from the support arm main body, and the support arm step is used for being connected with the lifting hook.
Further, the hoisting mechanism is an electric hoist, and a lifting hook head of the electric hoist is connected with the lifting hook.
Furthermore, the die-filling support arm is used for being sleeved inside the lifting hook, and the end part of the support arm stage is provided with threads.
Further, the die-filling supporting arm is used for being lapped at the bottom of a hanger main shaft of the lifting hook;
a tool withdrawal groove is arranged between the support arm stage and the support arm main body and used for clamping the lifting hook;
the outer surface of the support arm stand stage overlaps the bottom of the overlapping portion of the hook.
Further, the outer diameter of the support arm stage is smaller than the inner diameter of the overlapping part of the support arm stage and the lifting hook.
Furthermore, the upright post assembly comprises an upright post shaft, a rotating sleeve sleeved outside the upright post shaft and the die-filling support arm;
the fixed end of the die-filling supporting arm is fixedly connected with the rotating sleeve, and the free end of the die-filling supporting arm is used for extending into or leaving the shaft hole of the rolling die;
the rotary sleeve can rotate relative to the axis of the stand column shaft and rotates to a first position, and the die-filling support arm faces the machine table main shaft and is parallel to the machine table main shaft.
Furthermore, the upright post assembly comprises an upright post shaft, a rotating sleeve sleeved outside the upright post shaft, the die-filling supporting arm and the die-unloading supporting arm;
the die loading supporting arm and the die unloading supporting arm are positioned on the same horizontal line;
the fixed end of the die-filling supporting arm is fixedly connected with the rotating sleeve, and the free end of the die-filling supporting arm is used for extending into or leaving the shaft hole of the rolling die; the die loading supporting arm is in mirror symmetry with the rotating sleeve to form the die unloading supporting arm;
the rotating sleeve can rotate relative to the axis of the upright post shaft;
when the rotary sleeve rotates to a first position, the die-filling support arm is parallel to the machine table main shaft and faces the machine table main shaft;
when the rotary sleeve rotates to the second position, the die-filling support arm is parallel to the machine table main shaft, and the die-filling support arm is far away from the machine table main shaft.
Furthermore, the stand assembly still includes pin puller, be provided with on the surface of stand axle with pin puller cooperation use pulls out the pinhole.
Furthermore, when the rotating sleeve at the first position rotates relative to the stand column shaft by a first preset angle, the die-filling support arm is not parallel to the machine table main shaft.
Further, the upright post assembly comprises two die loading supporting arms and two die unloading supporting arms;
the two die-filling supporting arms are positioned on the same vertical line.
Further, the upright post assembly is detachably connected with the bearing beam.
The invention can obtain the following technical effects:
(1) the running line of the crown block is reduced, and the design requirement on the crown block is reduced. For the condition that the upper part of the roll forming machine is not suitable for erecting the running line of the crown block, the cantilever beam can be arranged near the roll forming machine, and the crown block is in charge of conveying the roll forming die to the cantilever beam.
(2) The die change time is shortened, the die-filling supporting arm for storing the rolling die is provided, and the production efficiency is improved. During the operation of the first rolling mold, the second rolling mold may be first transported to the mold-holding support arm by using a tool such as a crown block. In addition, the crown block can only change the die one by one, and the time is very spent on the whole line change of the three roll forming machines. Through the design of cantilever beam earlier, can correspond a cantilever beam by every roll forming machine, three cantilever beams can carry out retooling work simultaneously. The replaced rolling die is transported to the die filling supporting arm to be stored, and the die filling supporting arm can be withdrawn from the cantilever beam by using equipment such as a crown block, a forklift and the like by utilizing non-production time, so that the production efficiency is further improved.
(3) The die-filling supporting arm can be in lap joint with the lifting hook, and the rolling die is convenient to rapidly and horizontally push.
Drawings
FIG. 1 is a front view of a hook;
FIG. 2 is a schematic side view of a lapping connection between a hanger main shaft and a machine table main shaft of a lifting hook;
FIG. 3 is a schematic cross-sectional view at C-C of FIG. 2;
FIG. 4 is a side view schematic of the spreader spindle;
FIG. 5 is a schematic diagram of a front view of a cantilever beam according to an embodiment of the present invention;
FIG. 6 is a schematic top view of a cantilever beam according to an embodiment of the present invention;
FIG. 7 is a schematic perspective view of a cantilever beam according to an embodiment of the present invention;
FIG. 8 is a schematic structural view of a column assembly according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a side view of a spreader spindle and a die-filling support arm in lap joint according to an embodiment of the invention;
FIG. 10 is a schematic cross-sectional view taken at D-D of FIG. 9;
fig. 11 is a schematic side view of a spreader spindle and a die-filling support arm overlapping structure according to yet another embodiment of the invention.
Wherein the reference numerals include: the lifting mechanism 1, the lifting tool spindle 5, the machine main spindle body 61, the step section 62, the lifting tool spindle part 51, the lapping part 52, the convex part 53, the column assembly 2, the column spindle 20, the rotary sleeve 21, the die-filling support arm 22, the support arm stage 221, the die-filling support arm body 222, the die-unloading support arm 23, the pin puller 24 and the bearing beam 3.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention.
A cantilever beam for changing a wheel rolling die is characterized in that a front view structure of the cantilever beam is shown in figure 5, a top view structure of the cantilever beam is shown in figure 6, and a three-dimensional structure of the cantilever beam is shown in figure 7. As shown in fig. 5, 6 and 7, the cantilever beam mainly comprises a vertical column assembly 2 and a load-bearing beam 3 vertically connected with the fixed column assembly 2. The upright post assembly 2 and the bearing beam 3 integrally form a cantilever beam structure. The other end of the bearing beam 3 is positioned above the roll forming machine, and the hoisting mechanism 1 drives the lifting hook to move along the length direction of the bearing beam 3. Therefore, the rolling die can be transported to the upright post assembly 2 from the initial storage place of the rolling die through the crown block, after the hoisting mechanism 1 receives the rolling die, the hoisting mechanism 1 drives the rolling die to move to the main shaft of the machine table for connection, and finally the die is molded. Because the hoisting mechanism 1 drives the lifting hook to move along the length direction of the bearing beam 3, the design of the cantilever beam shortens the moving distance of the large hoisting mechanism of the crown block. The hoisting mechanism 1 can be vertically stretched, so that the lifting hook can be conveniently driven to avoid obstacles near the roll forming machine.
The free end of the die-filling support arm 22 is of a stepped shaft structure, and the free end of the die-filling support arm 22 is provided with a support arm stage 221 for connection with a hook. Because the free end of the machine table main shaft is of a stepped shaft structure, the connection between the machine table main shaft and the lifting hook in various forms can be realized, and the die-filling support arm 22 is also designed into the structure of the free end of the machine table main shaft. Facilitating the transfer of the hook between the die-filling support arm 22 and the machine table spindle.
Preferably, the hoisting mechanism 1 is an electric hoist, and a lifting hook head of the electric hoist is connected with a lifting hook. The electric hoist is small in structure, sensitive in movement and higher in precision. The lifting hook head can also rotate freely, and can drive the lifting hook fixedly connected with the lifting hook head to rotate freely. The electric hoist can move on the bearing beam 3; when the motion control button is released, the electric hoist can be locked at any position. The electric hoist has a fast and slow moving function, can adopt a fast function in the process of the previous lap joint position, can adopt a slow function when the lap joint is needed, and can adopt a braking function when the lap joint is completed. It is easy to think that, when hoisting machine constructs 1 for the electric hoist, the structure of carrier bar 3 is the rail structure that uses with the cooperation of electric hoist, and it is the prior art of machinery to realize the removal of electric hoist, and it is no longer repeated here.
In a preferred embodiment of the invention, the lifting hook is sleeved outside the main shaft of the machine table, and the connection of the lifting hook and the main shaft of the machine table is completed by the formation of a sleeve joint. The die-filling support arm 22 is sleeved inside the hook, and the end part of the support arm stage 221 is provided with threads. That is, the free end of the mold supporting arm 22 and the free end of the machine spindle have the same structure and size, and particularly, the diameters of the machine spindle main body 61 and the mold supporting arm main body 222 are the same, and the diameter and length of the step section 62 of the machine spindle and the supporting arm stage 221 are the same, and a hollow connecting sleeve is sleeved on the supporting arm stage 221.
More specifically, some connecting sleeve end portions are provided with internal threads for performing thread fixing positions with external threads of the step section 62 of the machine table main shaft, and the supporting arm table stage 221 is also provided with threads for positioning the die-filling supporting arm 22 and a lifting hook of the connecting sleeve structure.
In a preferred embodiment of the invention, the hook is connected with the main shaft of the machine platform in an overlapping mode. The die-filling supporting arm 22 is used for being lapped at the bottom of a hanger main shaft 5 of a lifting hook; a tool withdrawal slot is provided between the support arm stage 221 and the support arm body 222 for catching the hook.
The hook in the lap joint mode sequentially comprises a hanger main shaft part 51, a lap joint part 52 and a convex part 53. The outer diameters of the three parts are the same, but the inner diameter of the bridging part 52 is larger than that of the hanger main shaft part 51, and the inner diameter of the protruding part 53 is larger than that of the bridging part 52. The overlapping part 52 and the protruding part 53 are both incomplete cylindrical surfaces and can be overlapped on the main shaft of the machine table. The outer diameter of the support arm stage 221 is greater than the outer diameter of the relief groove and less than the outer diameter of the molded support arm body 222. Thus, when the molded support arm 22 and hook are overlapped, the support arm stand stage 221 is placed in the groove formed in the inner surface of the overlapping portion 52. The top surface of the support arm stand stage 221 is adapted to overlap the bottom surface of the overlapping portion 52. Because the top surface of the die-filling supporting arm 22 supports the rolling die through contact, the top surface of the hanger main shaft 5 also supports the rolling die through contact, and the vertexes of the outer surfaces of the die-filling supporting arm 22 and the hanger main shaft, which are farthest away from the ground, are all on the same horizontal plane, that is, the top surfaces of the die-filling supporting arm 22 and the hanger main shaft are horizontally aligned, so that the rolling die is horizontally passed through the die-filling supporting arm 22 and the hanger main shaft 5, and the rolling die is pushed onto the hanger main shaft 5 from the die-filling supporting arm 22. The tool withdrawal groove of the die-loading support arm 22 is used for accommodating the convex part 53, and the widths of the two parts are matched. When the roll-type die is transferred from between the hanger main shaft 5 and the die-filling support arm 22 in this way, the hanger main shaft 5 is not easily detached from the die-filling support arm 22.
When in use, the hoisting mechanism 1 enables the lifting hook to be lapped or sleeved with the die-filling supporting arm 22, and the external force is applied to horizontally transfer the rolling die from the die-filling supporting arm to the lifting hook; then the lifting hook rotates 180 degrees, so that the rolling die faces to the main shaft of the machine table, the lifting hook is in lap joint or socket joint with the main shaft of the machine table, and the rolling die is horizontally moved to the main shaft of the machine table from the lifting hook by applying external force. The hoisting mechanism 1 in the field is connected with a lifting hook by adopting a chain or a rope-shaped object, so that the lifting hook can be manually rotated by 180 degrees; it is also easy to think that the rotatable hook head which is commonly used in the field of hoisting mechanisms can be adopted to connect the hook; or the lifting hook is directly driven to rotate by the lifting mechanism, so that the lap joint part or the sleeve joint part can be connected with the machine main shaft or the die-filling supporting arm.
Preferably, when the axis of the spreader spindle 5 and the axis of the die-loading support arm 22 are overlapped, the high point is located on the same horizontal line, as shown in fig. 11, the outer diameter of the die-loading support arm 22 is equal to the outer diameter of the spreader spindle 5, and the outer diameter of the support arm stage 221 is equal to the inner diameter of the overlapping portion 52. The two have more area overlap joint, support more steadily.
Preferably, when the cantilever beam and the hook are overlapped, the axis of the spreader main shaft 5 is lower than the axis of the die-filling support arm 22, as shown in fig. 9 and 10, the outer diameter of the support arm stage 221 is smaller than the inner diameter of the overlapping part 52, and the distance from the axis of the spreader main shaft 5 to the top surface of the die-filling support arm 22 is equal to the distance from the axis of the spreader main shaft 5 to the top surface of the spreader main shaft 5. The diameter of the lifting appliance main shaft 5 is large, so that the bearing capacity is large, and the lifting hook is more beneficial to supporting the rolling die.
Preferably, a support rod is arranged between the other end of the carrier beam 3 and the top of the roll forming machine, and the support rod is fixedly connected with the carrier beam. The design is that the bearing beam 3 is supported by the roll forming machine, the stress of the bearing beam 3 can be reduced, and the cantilever beam is more stable. In order to improve the supporting capability of the bearing beam 3, the other end of the bearing beam 3 close to the roll forming machine can be vertically and fixedly connected with a grounded strut, and the height of the strut can be reduced by using the support rod arranged on the roll forming machine, so that the cost is saved.
Preferably, the load beam 3 and the column assembly 2 are of a two-body structure. The upright post assembly 2 is fixed on the ground through foundation bolts, one end of the bearing beam 3 is supported on the upright post assembly 2, and the quick-change connecting structure is adopted between the upright post assembly and the bearing beam for detachable connection like screws. The other end of the carrier beam 3 is supported on the main body frame of the roll forming machine through the supporting rod, and during equipment maintenance, the carrier beam 3, the supporting rod and the hoisting mechanism 1 can be integrally disassembled, and transportation is facilitated.
In a preferred embodiment of the invention, fig. 8 shows the structure of the column assembly 2, and as shown in fig. 8, the column assembly 2 comprises a column shaft 20, a rotating sleeve 21 sleeved outside the column shaft 20 and a mold-loading supporting arm 22; the fixed end of the die-filling supporting arm 22 is fixedly connected with the rotary sleeve 21, and the free end of the die-filling supporting arm 22 is used for extending into or leaving the shaft hole of the rolling die. The rotating sleeve 21 is rotatable relative to the axis of the column shaft 20 and rotates to a first position, the die-filling support arm 22 faces the machine main shaft and is parallel to the machine main shaft, and then the electric hoist starts to work. More specifically, when the rotary sleeve 21 rotates to the second position, the die-loading supporting arm 22 rotates to a position far away from the carrier beam 3, and at this time, the die-loading supporting arm 22 is limited by the carrier beam 3 when the die-loading supporting arm is at the first position, and the second position is more convenient for more operating spaces to receive external rolling dies. The design of first position, the removal of the position about being convenient for only being responsible for of lifting hook is along bearing beam 3 ascending removal in addition, compares the board main shaft and staggers with die-filling support arm 22 and compares, can guarantee fast that the rolling die all moves on same vertical face from die-filling support arm 22 to board main shaft motion in-process, reduces the unnecessary motion of lifting hook, improves production efficiency.
It is contemplated that the post shaft 20 may be integral or segmented. Two bearings are sleeved on the upright shaft 20 and used for rotatably supporting two ends of the rotating sleeve 21. The use of bearings to effect rotation between two parts is well known in the mechanical arts and will not be described in detail herein. Rotatory cover 21 is rotatory relative to stand axle 20, and rotatory cover 21 length is less than stand axle 20, and not whole stand assembly 2 is rotatory, can reduce the weight of the part that needs the rotation, has the support of bearing in addition for it is easier during rotatory die filling support arm 22, only needs the manpower can easily rotate die filling support arm 22.
In a preferred embodiment of the invention, the column assembly 2 further comprises a die-loading supporting arm 22 and a die-unloading supporting arm 23 which are positioned on the same horizontal line; the fixed end of the die-filling supporting arm 22 is fixedly connected with the rotating sleeve 21, and the free end of the die-filling supporting arm 22 is used for extending into or leaving the shaft hole of the rolling die; the die-loading support arms 22 are mirror-symmetrical about the rotary sleeve 21 to form the die-unloading support arms 23. The unloading support arm 23 and the loading support arm 22 are distributed on both sides of the rotary sleeve 21 in the radial direction.
And the mold loading supporting arm 22 and the mold unloading supporting arm 23 are designed simultaneously, so that the first rolling mold on the mold loading supporting arm 22 is positioned at the first position to prepare for the upper mold. The die-filling support arm 22 is parallel to the machine main shaft, and the die-filling support arm 22 faces the machine main shaft; and the unloading supporting arm 23 is positioned at the outer side of the cantilever beam and can simultaneously receive a second external rolling die, so that the die changing efficiency is improved. When the rotary sleeve 21 rotates to the second position, the die-filling support arm 22 is parallel to the machine main shaft, and the die-filling support arm 22 is far away from the machine main shaft, the rolling die on the die-filling support arm 22 can be ready to be moved down, and the rolling die on the die-unloading support arm 23 starts the next cycle. Therefore, the cantilever beam improves the production efficiency.
Preferably, the mast assembly 2 comprises two die-loading support arms 22 in the same vertical line and two corresponding die-unloading support arms 23 in the same vertical line. Since the roll type mold includes an upper mold and a lower mold, two mold supporting arms 22 arranged up and down one for placing the upper mold and one for placing the lower mold. The corresponding machine table main shaft also comprises an upper machine table main shaft and a lower machine table main shaft.
In a preferred embodiment of the present invention, when the rotating sleeve 21 in the first position rotates relative to the column shaft 20 by a first predetermined angle, the mold supporting arm 22 is not parallel to the main axis of the machine. The rotating sleeve 21 at the first position is positioned at the inner side of the cantilever beam; the rotating sleeve continues to rotate 180 degrees, and the rotating sleeve 21 is positioned on the outer side of the cantilever beam, so that the external rolling die is conveniently received. It is easily tripped by the formwork support arms 22 located on the outer side of the cantilever beam if a person passes along the safety channel arranged in the vertical carrier beam 3. Therefore, a first preset angle is designed, so that the die-filling support arms 22 are arranged at an angle relative to the main shaft of the machine, the extension lines of the die-filling support arms 22 and the carrier beams 3 are staggered, and personnel are not easy to trip over the die-filling support arms 22 positioned on the outer sides of the cantilever beams when passing through a safety channel vertical to the carrier beams 3.
Preferably, the rotating sleeve 21 can rotate 360 ° around the column shaft 20, and the four positions of 0 °, 90 °, 180 °, and 270 ° are provided on the column shaft 20 to position the rotating sleeve 21. The 0 deg. limit corresponds to the pattern-fill support arm 22 in the first position. Such 90 deg. and 270 deg. stops enable the formwork support arm 22 to be perpendicular to the carrier beam 3, increasing the safety of the safe passage for personnel along the vertical carrier beam 3. The positioning of the rotational position of the rotary sleeve 21 can be found in the conventional technical means in the mechanical field, or as follows, the technical solution of the rotary sleeve 21 with four rotational positions is exemplified.
In a preferred embodiment of the present invention, as shown in fig. 10, the column assembly 2 further includes a pin puller 24, and the outer surface of the column shaft 20 is provided with a pin pulling hole for cooperating with the pin puller 24. The pin extractor 24 functions to position the rotational position of the rotary sleeve 21. Specifically, the column shaft 20 is a hollow structure, four pin pulling holes are uniformly distributed on the periphery of the column shaft, a through hole is formed in the side wall of the rotary sleeve 21, and when the through hole corresponds to the pin pulling hole at different positions, the pin pulling device 24 is inserted to position the rotary sleeve 21 at different rotary positions.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and should not be taken as limiting the invention. Variations, modifications, substitutions and alterations of the above-described embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.
The above embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (11)
1. The utility model provides a wheel rolls cantilever beam that type mould retooling was used for supporting the lifting hook and shifting and roll type mould, its characterized in that includes: the lifting device comprises a lifting mechanism (1), a vertical column assembly (2) which is vertically arranged, and a bearing beam (3) which is connected with the vertical column assembly (2);
the upright post assembly (2) and the bearing beam (3) form a cantilever beam structure integrally;
the fixed end of the bearing beam (3) is vertically and fixedly connected with the upright post assembly (2), and the free end of the bearing beam (3) is positioned above the roll forming machine;
the hoisting mechanism (1) moves along the bearing beam (3) and is used for hoisting the lifting hook;
a die-filling supporting arm (22) is arranged on the upright post assembly (2), the fixed end of the die-filling supporting arm (22) is connected with the upright post assembly (2), and the free end of the die-filling supporting arm (22) is used for extending into or leaving the rolling die;
the free end of the die-filling support arm (22) is of a stepped shaft structure, the free end of the die-filling support arm (22) comprises a support arm platform stage (221) extending outwards from a support arm main body (222), and the support arm platform stage (221) is used for being connected with the lifting hook.
2. The cantilever beam for the die change of the wheel rolling die as claimed in claim 1, wherein the hoisting mechanism (1) is an electric hoist, and a lifting hook head of the electric hoist is connected with the lifting hook.
3. Cantilever beam for the retooling of rollerized wheel molds according to claim 1, characterized in that the modelled support arm (22) is designed to be sleeved inside the hook, the end of the support arm stage (221) being threaded.
4. The cantilever beam for the retooling of the wheel rolling die, according to claim 1, wherein the die-loading supporting arm (22) is adapted to overlap the bottom of the hanger main shaft (5) of the lifting hook;
a tool withdrawal groove is arranged between the support arm stage (221) and the support arm main body (222) and is used for clamping the lifting hook;
the outer surface of the support arm stand stage (221) overlaps the bottom of the overlapping portion (52) of the hook.
5. The outrigger beam for wheel roll mold exchange of claim 4 wherein the outer diameter of the outrigger stage (221) is less than or equal to the inner diameter of the overlapping portion (52) of the hook.
6. The cantilever beam for the die change of the wheel rolling die as claimed in claim 1, wherein the column assembly (2) comprises a column shaft (20), a rotating sleeve (21) sleeved outside the column shaft (20) and the die-filling supporting arm (22);
the rotary sleeve (21) can rotate relative to the axis of the upright post shaft (20), and when the rotary sleeve rotates to a first position, the die-filling support arm (22) faces the machine table main shaft and is parallel to the machine table main shaft.
7. The cantilever beam for the die change of the wheel rolling die as claimed in claim 1, wherein the column assembly (2) comprises a column shaft (20), a rotating sleeve (21) sleeved outside the column shaft (20), the die loading supporting arm (22) and the die unloading supporting arm (23);
the die loading supporting arm (22) and the die unloading supporting arm (23) are positioned on the same horizontal line;
the fixed end of the die unloading supporting arm (23) is fixedly connected with the rotating sleeve (21), and the free end of the die unloading supporting arm (23) is used for extending into or leaving the rolling die; the mould unloading supporting arm (23) and the mould loading supporting arm (22) are arranged in mirror symmetry with respect to the rotary sleeve (21);
the rotating sleeve (21) can rotate relative to the axis of the upright post shaft (20);
when the rotary sleeve (21) rotates to a first position, the die-filling support arm (22) is parallel to the machine table main shaft, and the die-filling support arm (22) faces the machine table main shaft;
when the rotary sleeve (21) rotates to the second position, the die-filling support arm (22) is parallel to the machine table main shaft, and the die-filling support arm (22) is far away from the machine table main shaft.
8. Cantilever beam for the retooling of the rollforming moulds for vehicle wheels, according to claim 6 or 7, wherein the column assembly (2) further comprises a pin puller (24), and the outer surface of the column shaft (20) is provided with a pin pulling hole cooperating with the pin puller (24).
9. Cantilever according to claim 6 or 7, wherein, when the rotating sleeve (21) in the first position is rotated by a first predetermined angle with respect to the upright shaft (20), the supporting arm (22) for loading the mould is not parallel to the main axis of the machine.
10. The cantilever beam for die change of the wheel rolling die, according to claim 6, wherein the pillar assembly (2) comprises two of the die-loading supporting arms (22) and two of the die-unloading supporting arms (23);
the two die-filling supporting arms (22) are positioned on the same vertical line.
11. Cantilever beam for the retooling of the rollerized wheel molds of claim 6 or 7, wherein the mast assembly (2) and the carrier beam (3) are removably connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110714517.7A CN113415737B (en) | 2021-06-25 | 2021-06-25 | Cantilever beam for changing wheel rolling die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110714517.7A CN113415737B (en) | 2021-06-25 | 2021-06-25 | Cantilever beam for changing wheel rolling die |
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| CN113415737A true CN113415737A (en) | 2021-09-21 |
| CN113415737B CN113415737B (en) | 2022-08-12 |
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| Publication number | Publication date |
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| CN113415737B (en) | 2022-08-12 |
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