CN112209213A - Novel passenger car body stretch-draw covering hoisting device - Google Patents
Novel passenger car body stretch-draw covering hoisting device Download PDFInfo
- Publication number
- CN112209213A CN112209213A CN201910629455.2A CN201910629455A CN112209213A CN 112209213 A CN112209213 A CN 112209213A CN 201910629455 A CN201910629455 A CN 201910629455A CN 112209213 A CN112209213 A CN 112209213A
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- car body
- skin
- passenger car
- electromagnetic
- lifting device
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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
- B66C1/04—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 magnetic means
- B66C1/06—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 magnetic means electromagnetic
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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
- B66C1/04—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 magnetic means
- B66C1/06—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 magnetic means electromagnetic
- B66C1/08—Circuits therefor
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention relates to a novel passenger car body stretching skin lifting device which comprises a main bearing cross beam (1) used for moving through an operation travelling crane, a hanger cross beam (3), a lifting hook (4) and a plurality of electromagnetic suckers (2) used for adsorbing a car body skin (5), wherein the hanger cross beam (3) is fixed at the top of the main bearing cross beam (1), the lifting hook (4) is fixed at the center of the top of the hanger cross beam (3), hook holes of the lifting hook (4) are formed in the operation travelling crane, the electromagnetic suckers (2) are uniformly distributed on the side wall of the main bearing cross beam (1), the electromagnetic suckers (2) are controlled by the same electromagnetic sucker controller circuit, and the electromagnetic sucker controller circuit comprises a rectifying circuit, a control circuit and a protection circuit. Compared with the prior art, the invention has the advantages of simple operation, cost saving, labor saving, occupied space saving, accurate positioning and the like.
Description
Technical Field
The invention relates to the technical field of passenger car body skin installation, in particular to a novel passenger car body tension skin hoisting device.
Background
With the increasing maturity of the current domestic passenger car technology, the welding workshops of the current host computer factories are all provided with large skin automatic stretching devices, so that the semi-automatic welding of the vehicle body skin welding station is realized, and the welding process is more convenient and more accurate than the previous welding process. But the current automatic stretching equipment for stretching the skin of the car body is expensive and occupies a large area. For some small and medium-sized passenger car enterprises, the equipment cost required to be borne is very high, the occupied production line area is large, professional technicians are required to operate the equipment, and the construction cost, the required input labor and the required input fund are very high. Therefore, the traditional manual tensioning process is adopted in the welding stations of the body skins of a plurality of enterprises at present.
The conventional passenger car/bus has large body skin size, the length is different from 7 to 13 meters, and some can even reach about 13 to 15 meters. In the traditional welding process of the vehicle body skin at the present stage, the vehicle body skin needs to be lifted by a plurality of staff (generally 4-6 persons are needed), and meanwhile, attention is paid to the fact that the skin cannot be deformed. After the skin of the vehicle body is aligned, one end of the skin is welded firstly, after the skin is welded firmly, the whole skin of the vehicle body is tensioned by a tensioning machine, and then the other end of the skin is welded. By adopting the operation mode, a large amount of workpiece adjusting time is needed when the vehicle body skin is welded, more workers need to be occupied, workers are easy to hurt, the positioning process can account for 40% -50% of the whole machining process, obvious errors are easy to occur in clamping and positioning, the rejection rate is high, and the efficiency is very low. Because the appearance of the vehicle body skin is large, the height of the vehicle body skin is high, the distance from the ground is about 2-3 meters, the skin is easy to deform and form creases in the manual lifting process of the skin, irreversible quality defects are generated on the surface flatness of the skin, a series of problems such as inaccurate positioning, poor welding quality, looseness of the skin and the like are easy to occur, and therefore a simple, easy-to-use and low-cost vehicle body skin lifting device is urgently needed to be designed and developed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a novel passenger car body tension skin lifting device which is simple and easy to use and has lower cost.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a novel passenger train automobile body stretch-draw covering lifts by crane device, the device include main bearing crossbeam, gallows crossbeam, lifting hook and be used for adsorbing a plurality of electromagnet of automobile body covering that are used for carrying out the removal through the operation driving, the gallows crossbeam fix the top at main bearing crossbeam, the lifting hook fix the top central point department of putting at the gallows crossbeam, the hook hole of lifting hook locate the operation driving on, a plurality of electromagnet equipartitions are on the lateral wall of main bearing crossbeam, a plurality of electromagnet adopt same electromagnet control ware circuit control, a plurality of electromagnet's shell ground connection.
Preferably, the hanger beam comprises an integrally formed inclined support part and a transverse plate support part, the inclined support parts are symmetrically arranged at two ends of the transverse plate support part, and the lifting hook is fixed at the top center of the transverse plate support part.
Preferably, the inclined supporting part and the transverse plate supporting part are fixed on the top of the main bearing cross beam through a fixing bracket.
Preferably, the electromagnetic chuck controller circuit comprises a rectifying circuit, a control circuit and a protection circuit, wherein one end of the rectifying circuit is connected with an alternating voltage 380V, the other end of the rectifying circuit is connected with the control circuit, the control circuit is connected with a coil of the electromagnetic chuck, and the protection circuit is connected with the coil of the electromagnetic chuck.
Preferably, the rectification circuit comprises a transformer and a bridge rectifier, the alternating voltage 380V is connected with the transformer and the bridge rectifier in sequence, and the bridge rectifier is connected with the control circuit.
Preferably, control circuit include power master switch, the button magnetizes, the demagnetization button, first contactor and second contactor, power master switch and the button that magnetizes, demagnetization button, first contactor are connected respectively, the main contact parallel connection of the button and first contactor magnetize, demagnetization button and the two pairs of main contact parallel connection of second contactor, first contactor and second contactor respectively with each electromagnet's coil parallel connection.
Preferably, the protection circuit comprises a discharge resistor, a capacitor and an under-voltage relay, the discharge resistor and the capacitor are connected in series and then connected in parallel with the coils of the electromagnetic chucks, the normally closed contact of the under-voltage relay is connected in parallel with the direct current power supply of the coils of the electromagnetic chucks, and the movable contact of the under-voltage relay is connected in series with the control circuit of the traveling motor.
Preferably, the length of the main load-bearing cross beam is 0.5-1 meter longer than that of the vehicle body skin.
Preferably, the included angle between the inclined supporting part and the horizontal plane is 13-19 degrees.
Preferably, the number of the electromagnetic chucks is 6-9.
Compared with the prior art, the invention has the following advantages:
(1) the vehicle body stretching skin lifting device is simple in structure, can be realized only by the main cross beam, the hanger cross beam, the electromagnetic chuck controller and the lifting hook, can be automatically welded and assembled for enterprises with poor technical conditions, solves the problem that large-scale automation equipment is expensive in capital, and greatly saves cost;
(2) the vehicle body stretching skin lifting device realizes the suction and discharge of the workpiece by electrifying/powering off the electromagnetic chuck, and realizes the movement and positioning of the workpiece by the movement of the travelling crane, thereby realizing the convenient, quick and easy-to-use vehicle body skin lifting device, being quick and labor-saving, only needing 1-2 manual operations in the whole process, having small danger coefficient and high efficiency;
(3) the car body stretching skin lifting device realizes the suction and discharge of a workpiece by electrifying/powering off the electromagnetic chuck, realizes the movement and positioning of the workpiece by the movement of the travelling crane, ensures that the car body skin is positioned more quickly, reduces manpower and material resources, improves the welding quality, does not need to carry out very professional training on operators, does not need too professional knowledge for the operators, is quick to operate, can be quickly put into production, and brings benefits for enterprises;
(4) the electromagnetic chuck is controlled by the electromagnetic chuck controller, the electric control powerful chuck has a quick positioning function, a button is simply pressed, and clamping or releasing of a workpiece can be completed within 0.3 second, so that the production efficiency can be greatly improved, in addition, the suction force of the common powerful chuck is weak and is not uniformly distributed, the requirement of processing operation of a large workpiece cannot be met, the electric control powerful chuck has strong holding force which can maximally reach 16kg/cm2The magnetic force distribution is uniform and adjustable, and the device can be suitable for machining, rough machining and finish machining of various large-scale workpieces by a strong force machine;
(5) the device has small floor area and flexible use, can be placed at the corner of a logistics area when not used, can save a large amount of floor area compared with large-scale automatic skin tensioning equipment, and solves the problems of small production line area and small staff operation space of small and medium-sized enterprises;
(6) the electromagnetic chuck can be continuously used by controlling the electromagnetic chuck by using the electromagnetic chuck controller, and no fault occurs and no maintenance is needed even if the electromagnetic chuck continuously works for more than 20 hours every day; the phenomenon that the suction force is reduced can occur when the ordinary sucker permanent magnet is used for about half a year, the electromagnetic sucker can only work for hours every day, equipment is prone to failure, and internal parts need to be frequently replaced and maintained;
(7) the electromagnetic chuck controller circuit is provided with an undervoltage relay KUD, a normally closed contact of the undervoltage relay KUD is connected with a direct current power supply of an electromagnetic chuck coil in parallel, a movable contact of the undervoltage relay KUD is connected with a control circuit of a traveling motor in series, if the electromagnetic chuck cannot firmly suck a workpiece, KUD is released, the traveling motor stops rotating and cannot work, and production safety is further guaranteed.
Drawings
FIG. 1 is a schematic exterior view of a body skin of a conventional passenger/bus;
FIG. 2 is a schematic diagram of the structure of the apparatus of the present invention;
FIG. 3 is a schematic structural view of the device of the present invention in an operating state;
FIG. 4 is a schematic diagram of the connection side view structure of the electromagnetic chuck and the vehicle body skin of the device of the present invention in the working state;
FIG. 5 is a diagram showing the structure of the electromagnetic chuck controller circuit in the apparatus of the present invention;
the reference numbers in the figures indicate:
1. the lifting device comprises a main bearing beam, 2, an electromagnetic chuck, 3, a hanger beam, 4, a lifting hook, 5, a vehicle body skin, 6, a fixed support, 301, an inclined support part, 302 and a transverse plate support part.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
The invention develops and designs a novel passenger car body tension skin hoisting device with an electromagnetic chuck on the basis of the traditional car body skin welding process. A novel passenger car body tensioning skin lifting device is shown in a structural diagram in figure 2 and comprises a main bearing beam 1, an electromagnetic chuck 2, a hanger beam 3 and a lifting hook 4.
The main bearing beam 1 is connected with the lifting hook 4 through the hanger beam 3, the plurality of electromagnetic suckers 2 are uniformly distributed on the main bearing beam 1 to form an integral frame, the workpieces are sucked and placed through the power-on/power-off of the electromagnetic suckers 2, and the workpieces are moved and positioned through the movement of a travelling crane, so that the convenient, quick and easy-to-use automobile body skin lifting device is realized. The hanger beam 3 is used for providing the function of an auxiliary connecting frame and comprises inclined supporting parts 301 and transverse plate supporting parts 302, the inclined supporting parts 301 are symmetrically arranged at two ends of the transverse plate supporting parts 302, the inclined supporting parts 301 and the transverse plate supporting parts 302 are integrally formed, and the included angle between the inclined supporting parts 301 and the horizontal plane is 13-19 degrees. The inclined support part 301 and the cross plate support part 302 are fixed on the main load-bearing cross beam 1 through the fixing bracket 6. The hook 4 is fixed to the top of the cross plate support 302. The hook hole of the hook 4 is arranged on the operation travelling crane. A plurality of electromagnetic chucks 2 are uniformly distributed on the side wall of the main bearing beam 1, and the electromagnetic chucks 2 are controlled by an electromagnetic chuck controller. Preferably, the number of the electromagnetic chucks 2 is 6-9.
Preferably, the length of the main load-bearing cross beam 1 is longer than the length of the vehicle body skin by 0.5-1 meter.
As shown in figure 3, when the automobile body stretching device works, firstly, an automobile body skin is erected on the side, a plurality of electromagnetic chucks 2 are aligned with the upper end of the automobile body skin and then are connected with a power supply, the plurality of electromagnetic chucks 2 generate magnetic force simultaneously (in order to ensure the synchronism of the electromagnetic chucks, the electromagnetic chucks of the automobile body stretching device are controlled by the same electromagnetic chuck controller, at the moment, the electromagnetic chucks 2 suck and fix the automobile body skin 5 on a main bearing cross beam 1 (shown in figures 3 and 4), a crane is operated to move a lifting hook 4 upwards, at the moment, a lifting device lifts a workpiece, the crane is moved leftwards and rightwards, so that the automobile body skin is attached to an automobile body framework and aligned with a skin welding position, at the moment, the automobile body skin can be accurately positioned, then the skin stretching welding can.
The electromagnetic chuck controller of the invention has the working principle that: the alternating voltage 380V is reduced by a transformer, rectified by a rectifier to become 110V direct current, enters the sucker through the electromagnetic sucker control system, the sucker is magnetized at the moment, and a reverse voltage circuit is connected during demagnetization to control the electromagnetic sucker to achieve the demagnetization function.
The electromagnetic chuck controller circuit of the invention is composed of a rectification circuit, a control circuit, a protection circuit and the like. The rectifier circuit consists of a transformer TC and a bridge rectifier UR and outputs 110V direct current power supply. The control circuit power supply main switch SB1, the magnetizing button SB2, the demagnetizing button SB3, the first contactor KM1 and the second contactor KM2 (as shown in FIG. 5).
The working process comprises a magnetizing process and a demagnetizing process:
(1) and (5) magnetizing. When a magnetizing button SB2(switch button 2) is pressed, the first contactor KM1 is electrified to attract and self-lock, the main contact is closed, the powerful electromagnetic chuck YH coil is electrified, the working chuck is magnetized to generate magnetic force to attract a workpiece, and meanwhile, the auxiliary break contact KM1 is disconnected, so that the KM2 cannot be electrified, and interlocking is realized. After the welding and positioning of the car body skin, when the machined workpiece is taken down, the demagnetization button SB1 is pressed to cut off the direct current power supply on the powerful electromagnetic chuck YH.
Because the sucking disc and the workpiece both have residual magnetism, the electromagnetic sucking disc and the workpiece need to be demagnetized at the moment.
(2) And (5) demagnetizing. When the demagnetization button SB3 is pressed, the coil of the second contactor KM2 is electrified and attracted, the two main contacts of the second contactor KM2 are closed, the strong electromagnetic chuck is electrified with reverse direct current, and the workbench and the workpiece are demagnetized under the excitation of the reverse direct current. In demagnetization, in order to prevent the workbench from being magnetized reversely due to overlong time and suck the workpiece again, the second contactor KM2 adopts inching control.
The electromagnetic chuck controller circuit of the invention is provided with an undervoltage relay KUD. The function of the undervoltage relay: when the voltage of the circuit is insufficient, the suction force generated by the electromagnetic chuck is not large enough, and accidents are likely to happen. In the invention, a normally closed contact of the undervoltage relay KUD is connected with a direct current power supply of the electromagnetic chuck coil in parallel, and a movable contact of the undervoltage relay KUD is connected with a control circuit of a traveling motor in series. If the electromagnetic chuck can not firmly suck the workpiece, KUD is released, and the motor of the traveling crane stops rotating and can not work, thereby ensuring the production safety.
The protection circuit of the electromagnetic chuck controller consists of a discharge resistor R, a capacitor C and an undervoltage relay KUD, wherein the resistor R and the capacitor C have the following functions: the electromagnetic chuck is a large inductor, when the electromagnetic chuck is used for magnetizing and attracting a piece, a large amount of magnetic field energy is stored, and in the moment of separating from a power supply, the two ends of the electromagnetic chuck YH generate large self-induced electromotive force to damage a coil and other electrical elements, so that a discharge loop is formed by a resistor and a capacitor, the characteristic that the voltage on the two sides of the capacitor C cannot change suddenly is utilized, the voltage change on the two ends of the coil of the electromagnetic chuck tends to be slow, and the electromagnetic energy is consumed by the resistor.
Meanwhile, the shell of the electromagnetic chuck is grounded, so that the electromagnetic chuck can be prevented from being creepage and hurting people.
The car body stretching skin hoisting device is simple in structure, and can be automatically welded and assembled for enterprises with poor technical conditions, so that the problem of high capital of large-scale automatic equipment is solved, and the cost is greatly saved; the electromagnetic chuck is powered on/off to suck and release the workpiece, and the workpiece is moved and positioned by the traveling crane, so that the convenient, quick and easy-to-use vehicle body skin lifting device is realized, and the device is simple and convenient to operate, quick, labor-saving and small in occupied area.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and those skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a novel passenger train automobile body stretch-draw covering lifts by crane device, its characterized in that, the device include main bearing crossbeam (1), gallows crossbeam (3), lifting hook (4) and be used for adsorbing a plurality of electromagnet (2) of automobile body covering (5) that move through the operation driving, gallows crossbeam (3) fix at the top of main bearing crossbeam (1), lifting hook (4) fix the top central point department of putting in gallows crossbeam (3), the hook hole of lifting hook (4) locate the operation driving on, a plurality of electromagnet (2) equipartitions are on the lateral wall of main bearing crossbeam (1), a plurality of electromagnet (2) adopt same electromagnet to inhale controller circuit control, the shell ground connection of a plurality of electromagnet (2).
2. A novel passenger car body tensioning skin lifting device as claimed in claim 1, wherein the hanger beam (3) comprises an integrally formed inclined support portion (301) and a transverse plate support portion (302), the inclined support portions (301) are symmetrically arranged at two ends of the transverse plate support portion (302), and the lifting hook (4) is fixed at the top center position of the transverse plate support portion (302).
3. A novel lifting device for tensioning skin of a passenger car body according to claim 2, characterized in that the inclined supporting part (301) and the transverse plate supporting part (302) are fixed on the top of the main bearing cross beam (1) through a fixing bracket (6).
4. The novel lifting device for the tension skin of the passenger car body as claimed in claim 1, wherein the electromagnetic chuck controller circuit comprises a rectifying circuit, a control circuit and a protection circuit, one end of the rectifying circuit is connected with an alternating voltage 380V, the other end of the rectifying circuit is connected with the control circuit, the control circuit is connected with the coil of the electromagnetic chuck (2), and the protection circuit is connected with the coil of the electromagnetic chuck (2).
5. A novel lifting device for tensioning skin of passenger car body according to claim 4, characterized in that the rectification circuit comprises a Transformer (TC) and a bridge rectifier (UR), the AC voltage 380V is connected with the Transformer (TC) and the bridge rectifier (UR) in sequence, and the bridge rectifier (UR) is connected with the control circuit.
6. A novel passenger car body tension skin lifting device as claimed in claim 5, wherein the control circuit comprises a power supply main switch (SB1), a magnetizing button (SB2), a demagnetizing button (SB3), a first contactor (KM1) and a second contactor (KM2), the power supply main switch (SB1) is connected with the magnetizing button (SB2), the demagnetizing button (SB3) and the first contactor (KM1) respectively, the magnetizing button (SB2) is connected with the main contact of the first contactor (KM1) in parallel, the demagnetizing button (SB3) is connected with the two main contacts of the second contactor (KM2) in parallel, and the first contactor (KM1) and the second contactor (KM2) are connected with the coils of the electromagnetic suckers (2) respectively in parallel.
7. A novel passenger car body tensioning skin lifting device according to claim 4, characterized in that the protection circuit comprises a discharge resistor (R), a capacitor (C) and an under-voltage relay (KUD), the discharge resistor (R) and the capacitor (C) are connected in series and then connected in parallel with coils of the electromagnetic suckers (2), a normally closed contact of the under-voltage relay (KUD) is connected in parallel with a direct current power supply of the coils of the electromagnetic suckers (2), and a movable contact of the under-voltage relay (KUD) is connected in series with a control circuit of a driving motor.
8. A novel lifting device for a tensioning skin of a passenger car body as claimed in claim 1, characterized in that the length of the main bearing cross beam (1) is 0.5-1 m longer than that of the skin (5) of the passenger car body.
9. A novel lifting device for tensioning covering of passenger car body according to claim 2, characterized in that the included angle between the inclined supporting part (301) and the horizontal plane is 13-19 °.
10. A novel lifting device for a tensioning skin of a passenger car body as claimed in claim 1, wherein the number of the electromagnetic suckers (2) is 6-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910629455.2A CN112209213A (en) | 2019-07-12 | 2019-07-12 | Novel passenger car body stretch-draw covering hoisting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910629455.2A CN112209213A (en) | 2019-07-12 | 2019-07-12 | Novel passenger car body stretch-draw covering hoisting device |
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| Publication Number | Publication Date |
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| CN112209213A true CN112209213A (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910629455.2A Pending CN112209213A (en) | 2019-07-12 | 2019-07-12 | Novel passenger car body stretch-draw covering hoisting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112977676A (en) * | 2021-03-05 | 2021-06-18 | 奇瑞商用车（安徽）有限公司 | Aluminum side wall skin assembling device and assembling method |
| CN115489611A (en) * | 2022-09-09 | 2022-12-20 | 中国第一汽车股份有限公司 | Method for bonding carbon fiber outer skin and aluminum alloy framework minibus body |
-
2019
- 2019-07-12 CN CN201910629455.2A patent/CN112209213A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112977676A (en) * | 2021-03-05 | 2021-06-18 | 奇瑞商用车（安徽）有限公司 | Aluminum side wall skin assembling device and assembling method |
| CN112977676B (en) * | 2021-03-05 | 2023-10-27 | 奇瑞商用车（安徽）有限公司 | Aluminum side wall skin assembling device and assembling method |
| CN115489611A (en) * | 2022-09-09 | 2022-12-20 | 中国第一汽车股份有限公司 | Method for bonding carbon fiber outer skin and aluminum alloy framework minibus body |
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