CN101269781B - Industrial production sling safety system and security protection method - Google Patents
Industrial production sling safety system and security protection method Download PDFInfo
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- CN101269781B CN101269781B CN2008100250355A CN200810025035A CN101269781B CN 101269781 B CN101269781 B CN 101269781B CN 2008100250355 A CN2008100250355 A CN 2008100250355A CN 200810025035 A CN200810025035 A CN 200810025035A CN 101269781 B CN101269781 B CN 101269781B
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Abstract
The invention discloses an industrial production lifting tool safety protection system, which comprises a pneumatic balancer (1), a clamping cylinder (11) and a main air supply (15), wherein, the pneumatic balancer is used for the elevation and the subsidence of a lifting tool; the clamping cylinder is used for tightly holding a workpiece; the main air supply is used for the drive and the control; the safety protection system is provided with a lifting tool elevation-subsidence control air circuit (16), a workpiece clamping air circuit (17), an elevation-subsidence and clamping interlocking air circuit (18) and an air-break protection air circuit (19), and each of the air circuits is communicated with the main air supply (15) by the same air circuit. The invention also relates to a safety protection method adopted by the industrial production lifting tool safety protection system. By adopting the technical proposal, a production lifting tool used in industrial production especially automobile industrial production realizes mutually correlative multiple safety protection, the safety protection system has the advantages of simple and reasonable structure and convenient and reliable operation, and the safety performance of the system is guaranteed and accidents of incorrect manipulation, air break, air leakage, etc. are stopped to happen.
Description
Technical field
The invention belongs to industrial Equipment Technology field, relate to the production tooling of the transhipment workpiece in its production process, more particularly, the present invention relates to a kind of industrial production sling safety system.The method for security protection that the present invention also provides described industrial production sling safety system to be adopted.
Background technology
At present, in the flow production line that is welded of automobile manufacturing enterprise, use suspender to carry out the operations such as transfer, packing, lifting of workpiece.In order to make the suspender equipment availability better satisfy manufacturing technique requirent and productive temp, producer generally all adopts cylinder to come the driving device structure as propulsion source mostly, realizes the clamping of suspender and unclamps, and workpiece is risen or descend.The general mode of electromagnetic control valve that adopts is carried out sequence of operation control and safety protection control.
The mode that adopts cylinder to drive, but better operational space can not only be provided, can also more effectively utilize cylinder drive link mechanism, avoid the anchor clamps problems such as interference of parts on every side.But along with the quickening of productive temp, operating personal is not concentrated because of tired, paralysis cause energy sometimes, and the maloperation phenomenon happens occasionally; In addition, because the long-term use of equipment, gas circuit control element and tracheae loss meeting are died, gas leak phenomenon, cause the gas circuit control fails.If adopt the mode of solenoid control, the structure of control system, circuit and controlling parts are more complicated, increase the probability of generation systems fault.In case the fault of suspender takes place, can cause workpiece to come off, the serious person and device security accident finally take place, make an extremely bad impression.
Summary of the invention
Problem to be solved by this invention provides a kind of industrial production sling safety system; its objective is and make industrial production sling utilize same source of the gas; in pneumatic control system, realize being mutually related multiple safety guard-safeguard, stop maloperation, die, the generation of accident such as gas leakage.
To achieve these goals, the technical scheme taked of the present invention is:
This industrial production sling safety system that is provided; described suspender is a pneumatic actuation; comprise the air counterbalance device that is used for the suspender lifting, be used for the clamping cylinder that workpiece tightly holds and be used to the gas source that drives and control; it is characterized in that: described safety system is established suspender lifting control gas circuit, work-holding control gas circuit, lifting and the clamping interlocking gas circuit and the protection gas circuit of dying, and above-mentioned each gas circuit is communicated with gas source by same gas circuit.
The structure of the industrial production sling safety system described in the present invention can also further adopt following optimized technical scheme, makes it produce better effect.
The detailed technology scheme of suspender lifting control gas circuit:
In the suspender lifting control gas circuit described in the above scheme, if rising button, the gentle dynamic blancer air intake control valve of decline button, when the air cavity of described air counterbalance device is in working position by air counterbalance device air intake control valve from the gas source air inlet, air counterbalance device air intake control valve makes the air cavity air inlet of air counterbalance device by the rising push button control, is made the air cavity throttling exhaust of air counterbalance device by the decline push button control.
Further, described air counterbalance device air intake control valve is a working position by air operated control, the normality position two position three-way valve by spring reset; Described rising button and decline button are working position by push button control, the normality position two position three-way valve by spring reset.
The gas circuit annexation of described suspender lifting control gas circuit is:
The working position of the air cavity of air counterbalance device, decline button, rising button, air counterbalance device air intake control valve connects successively by gas circuit;
The decline button is when the normality position, and the air cavity of air counterbalance device communicates with the rising button, and when working position, the air cavity of air counterbalance device communicates with throttling exhausr port on the decline button;
The rising button is when the normality position, and the gas port sealing that communicates with the decline button when working position, makes the gas circuit of decline button communicate with the working position of air counterbalance device air intake control valve;
Air counterbalance device air intake control valve makes towards the gas circuit sealing of the air cavity of air counterbalance device when the normality position, when working position, the gas source gas circuit is communicated with the air cavity of air counterbalance device.
The detailed technology scheme of work-holding control gas circuit:
In the work-holding control gas circuit described in the above scheme, establish and clamp button, release button and two five-way valves of double air controlled, make two five-way valves of double air controlled be in the clamping working position by clamping push button control, and then make the clamping air cavity that clamps cylinder from the gas source air inlet; By release button control two five-way valves of double air controlled are in and unclamp working position, so make clamp cylinder unclamp air cavity from the gas source air inlet.
Lifting and the detailed technology scheme that clamps the interlocking gas circuit:
Lifting described in the above scheme is interlocked with clamping in the gas circuit, if pressure opening and closing valve, its structure is a two-position five-way valve, its working position is communicated with the air cavity of air counterbalance device by the throttling governing valve, its normality position is resetted by adjustable springs, and the control gas circuit of described clamping button and release button realizes being switched on or switched off by pressure opening and closing valve and gas source.
The detailed technology scheme of the protection gas circuit of dying:
The protection gas circuit of dying described in the above scheme is to establish draught excluder on the gas circuit of the clamping air cavity that clamps cylinder and two five-way valves of double air controlled; described draught excluder is for being controlled the boiler check valve of its reverse-conducting by outside control mouth; its forward is for clamping the air cavity airintake direction; it oppositely is the direction of non-return direction for the clamping air cavity exhaust of clamping cylinder, and its outside control mouth is communicated with the gas circuit of unclamping air cavity that clamps cylinder.
Further, described clamping button, release button are working position by push button control, the normality position two position three-way valve by spring reset, when pressure opening and closing valve is in the normal state the position when being adjustable spring reset, clamp the gas circuit connection of button and release button and gas source.
When described pressure opening and closing valve was in state that adjustable spring resets and described clamping button and is in working position, the clamping working position of two five-way valves of the gas circuit of gas source and double air controlled communicated;
Perhaps when described pressure opening and closing valve was in state that adjustable spring resets and described release button and is in working position, the working position that unclamps of two five-way valves of the gas circuit of gas source and double air controlled communicated.
Described safety system is established pressure indicator light, when described pressure opening and closing valve is in working position, clamps button and release button and gas source gas circuit and disconnects, and the gas circuit of described pressure indicator light communicates with the gas source gas circuit by pressure opening and closing valve.
In order to realize the goal of the invention identical with technique scheme, the method for security protection that the present invention also provides the industrial production sling safety system described in the above technical scheme to be adopted, concrete technical scheme is:
The air cavity of described air counterbalance device is set and is prevented the critical air pressure of maloperation, this system is in the rising of suspender or in the process before dropping to workpiece contact frock clamp, the air cavity internal gas pressure of air counterbalance device is higher than this critical air pressure, described work-holding control gas circuit is in by the lock state, be that work-holding control gas circuit is subjected to lifting and the restriction that clamps the interlocking gas circuit, the operation that can not clamp and unclamp makes work-holding control gas circuit remain on the work-holding state;
After the air cavity internal gas pressure that suspender drops to workpiece contact frock clamp, air counterbalance device equals to be lower than this critical air pressure, described work-holding control gas circuit is in operable state, be that work-holding control gas circuit no longer is subjected to lifting and the restriction that clamps the interlocking gas circuit, the operation that can clamp and unclamp makes work-holding control gas circuit realize the clamping of workpiece or the operation of unclamping.
In order to realize the goal of the invention identical with technique scheme; the present invention also provides the method for security protection that is adopted in the industrial production sling safety system described in the above technical scheme; relate generally to the method for security protection of its protection gas circuit of dying, concrete technical scheme is:
When normal and work-holding control gas circuit is not lockable when described gas source and system, clamps cylinder and can do to clamp motion; Or described clamping cylinder unclamps air cavity and is in high pressure conditions, and the gas circuit reverse-conducting of draught excluder clamps the motion that cylinder can be done to unclamp;
When described gas source stopped air feed or gas circuit suddenly and takes place to leak, described when unclamping the air cavity decompression, the gas circuit of draught excluder was oppositely ended, and clamps the motion that cylinder can't be done to unclamp.
The present invention adopts technique scheme; make that employed suspender utilizes same source of the gas in commercial production, particularly auto-industry production; in pneumatic power and control system, realize being mutually related multiple safety guard-safeguard; its safety system simple and reasonable for structure; easy to operate, reliable; guaranteed the safety performance of system, stopped maloperation, die, the generation of accident such as gas leakage.
Description of drawings
Below expressed content of the accompanying drawing of this specification sheets and the mark among the figure are made brief description:
Fig. 1 is a structural representation of the present invention.
Be labeled as among the figure: 1, air counterbalance device; 2, throttling governing valve; 3, air counterbalance device air intake control valve, 4, pressure opening and closing valve, 5, the rising button; 6, decline button; 7, clamp button, 8, release button, 9, two five-way valves of double air controlled; 10, pneumatic triple piece; 11, clamp cylinder, 12, draught excluder, 13, pressure indicator light; 14, steel rope; 15, gas source, 16, suspender lifting control gas circuit, 17, work-holding control gas circuit; 18, lifting and clamping interlocking gas circuit, 19, the protection gas circuit of dying.
The specific embodiment
Contrast accompanying drawing below, by description to embodiment, to effect and principle of work, the manufacturing process of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and manipulate method etc., be described in further detail, inventive concept of the present invention, technical scheme had more complete, accurate and deep understanding to help those skilled in the art.
The of the present invention structure expressed as Fig. 1; the present invention is a kind of industrial production sling safety system; described suspender is that pneumatic actuator system drives, and comprises the air counterbalance device 1 that is used for the suspender lifting, is used for the clamping cylinder 11 that workpiece tightly holds and is used to the gas source 15 that drives and control.Establish pneumatic triple piece 10 in the gas source 15 and the power gas circuit of suspender with controlling on the gas circuit bonded assembly gas circuit.Three linked piece is meant water-separating gas filter, reducing valve and oil sprayer in the pneumatic triple piece, is that collection decompression, oil removing, water, filtering function are the combined pneumatic element of one.High pressure gas come out through after the long pipe runs from compressor, all to use before entering control element such as solenoid directional control valve with air operated control, pneumatic valve, cylinder, wind turbine instrument and power element, so as oil removing, dewater, dedusting, avoid causing rubber seal, the wearing and tearing of metal piece generation burn into the gas device.When suspender rose, gas source 15 was an air feed in the air cavity to the steel cylinder of air counterbalance device 1, and the ball screw that is installed in air counterbalance device 1 opposite side is rotated, and drove steel rope 14 and suspension hook and moved up; When the air cavity of air counterbalance device 1 carries out the throttling exhaust under the effect of the control of control system and gravity, suspender descends.
In order to solve the problem that in the present known technology described in this specification sheets background technology, exists and to overcome its defective; be achieved as follows goal of the invention: make industrial production sling utilize same source of the gas; in pneumatic control system, realize being mutually related multiple safety guard-safeguard; stop maloperation, die, the generation of accident such as gas leakage, the overall technological scheme that the present invention takes is:
As shown in Figure 1; this industrial production sling safety system provided by the present invention; if suspender lifting control gas circuit 16, work-holding control gas circuit 17, lifting and clamping interlocking gas circuit 18 and the protection gas circuit 19 of dying, above-mentioned each gas circuit is communicated with gas source 15 by same gas circuit.
Adopt the safer failure-free control setup that technique scheme provided to realize making manufacturing line packing suspender except possessing the functions such as clamping of lifting, decline and workpiece; also possess the maloperation and the protective effect of dying, and they are integrated into a control system.Owing to adopted pure pneumatic structure, the structure that makes control system more simply, more reasonable, easy to operate, reliable, guaranteed the safety performance of system, stopped maloperation, died, the generation of accident such as gas leakage.
The present invention realizes the maltilevel security protection in order to realize and further improve its structure better, and technical scheme proposed by the invention in the specific implementation can also be on the basis of above-described inventive concept, the specific embodiment below adopting:
One, the composition structure and the components and parts thereof of suspender lifting control gas circuit 16:
In the suspender lifting control gas circuit 16 described in the above scheme, if rising button 5, decline button 6 gentle dynamic blancer air intake control valves 3, when the air cavity of described air counterbalance device 1 is in working position by air counterbalance device air intake control valve 3 from gas source 15 air inlets, air counterbalance device air intake control valve 3 is controlled the air cavity air inlet that makes air counterbalance device 1 by rising button 5, is made the air cavity throttling exhaust of air counterbalance device 1 by 6 controls of decline button.
Said structure makes the lifting of suspender provide control needed power by gas source 15, realizes the break-make of lifting gas circuits by air counterbalance device air intake control valve 3, realize suspender ascending, descending, stop.Functional requirement reaches: during by rising button 5, suspender rises; During by decline button 6, suspender descends; Rising button 5 and decline button 6 all not according to, when promptly all being in the normal state, suspender hovers at an arbitrary position.
Two, the concrete structure of air counterbalance device air intake control valve 3, rising button 5 and decline button 6:
Air counterbalance device air intake control valve 3 described in the embodiment one is a working position by air operated control, the normality position two position three-way valve by spring reset; Described rising button 5 and decline button 6 are working position by push button control, the normality position two position three-way valve by spring reset.
Present embodiment has solved the version of above-mentioned three pneumatic control components.Its structure is the two-position three-way valve of spring reset, and is simple in structure, and commonality is good.Particularly rise button 5 and decline button 6 are actually two pneumatic valves, adopt the form of button, directly realize the control to gas circuit, and the minimizing controlling unit improves its reliability.
Three, the gas circuit annexation of described suspender lifting control gas circuit 16 is:
The working position of the air cavity of the air counterbalance device 1 described in above-mentioned two embodiment, decline button 6, rising button 5, air counterbalance device air intake control valve 3 connects successively by gas circuit;
Decline button 6 is when the normality position, and the air cavity of air counterbalance device 1 communicates with rising button 5, and when working position, the air cavity of air counterbalance device 1 communicates with throttling exhausr port on the decline button 6;
Rising button 5 is when the normality position, and the gas port sealing that communicates with decline button 6 when working position, makes the gas circuit of decline button 6 communicate with the working position of air counterbalance device air intake control valve 3;
Air counterbalance device air intake control valve 3 makes towards the gas circuit sealing of the air cavity of air counterbalance device 1 when the normality position, when working position, gas source 15 gas circuits is communicated with the air cavity of air counterbalance device 1.
In conjunction with the embodiments one, the concrete structure that provided of embodiment two and embodiment three, the principle of work and the mode of operation of suspender lifting control gas circuit 16:
When pressing rising button 5, the air counterbalance device air intake control valve 3 that is installed on the air counterbalance device 1 is connected, gas source 15 is air feed in air counterbalance device 1 steel cylinder is above-mentioned air cavity, and the ball screw that is installed in air counterbalance device 1 opposite side is rotated, and drives steel rope 14 and suspension hook and moves up;
When unclamping rising button 5, the return-air gas circuit of the air cavity of air counterbalance device 1 all is in closed state, the pressure that the high pressure gas that store in the air counterbalance device 1 produce acts on the power F1 on the piston rod, acts on power F2 balance on the piston (direction of F1 and F2 in Fig. 1 mark) with weight by steel rope 14.Therefore short of leakage, weight can be parked in this height and position and maintain static; (at this moment, decline button 6 also is in releasing orientation.)
When pressing decline button 6, the gas circuit of air counterbalance device air intake control valve 3 disconnects, weight acts on power F2 on the piston greater than F1 by steel rope 14, make the high pressure gas that store in the air counterbalance device 1 realize the throttling exhaust by the throttling exhausr port of decline button 6, piston moves in air counterbalance device 1, and suspender is slowly descended;
When unclamping decline button 6, situation is with aforementioned to unclamp rising button 5 identical;
When pressing rising button 5 and decline button 6 simultaneously, identical when it is controlled effect and only presses decline button 6.
Four, the concrete structure of work-holding control gas circuit 17:
Aforesaid overall technological scheme of the present invention, in its described work-holding control gas circuit 17, if clamp button 7, release button 8 and two five-way valves 9 of double air controlled, make two five-way valves 9 of double air controlled be in the clamping working position by clamping button 7 controls, and then make the clamping air cavity that clamps cylinder 11 from gas source 15 air inlets; By release button 8 control two five-way valves 9 of double air controlled are in and unclamp working position, so make clamp cylinder 11 unclamp air cavity from gas source 15 air inlets.
The action of the workpiece clamping mechanism of suspender clamps two control mouths that button 7 and release button 8 are controlled this change-over valve respectively by 9 controls of a double air controlled switch valve with two-position and five-pass, makes this valve commutation, realizes clamping the clamping of cylinder 11 and unclamping action.The power of its clamping and the control effort of clamping and release provide by gas source 15.
Five, the technical scheme of the detailed structure of lifting and clamping interlocking gas circuit 18:
In aforesaid overall technological scheme of the present invention, in its described lifting and the clamping interlocking gas circuit 18, establish pressure opening and closing valve 4, its structure is a two-position five-way valve, its working position is communicated with the air cavity of air counterbalance device 1 by throttling governing valve 2, and promptly pressure opening and closing valve 4 is from the number of winning the confidence of air counterbalance device; Described pressure opening and closing valve 4 normality positions are resetted by adjustable springs, and the control gas circuit of described clamping button 7 and release button 8 realizes being switched on or switched off by pressure opening and closing valve 4 and gas source 15.
The adoptable in use model of pressure opening and closing valve 4 is XT92-51-X2.
The principle of work of said structure:
Pressure opening and closing valve 4 detects the pressure of air counterbalance device interior 1.The directed force F 2 ' of weight on air counterbalance device 1 inner carrier according to suspender when unloaded, the critical pressure F1 ' of setting pressure switch motion (F1 ' and the direction of F2 ' is as shown in fig. 1).Have only and work as by decline button 6, make workpiece contact frock clamp, differential pressure in the air counterbalance device 1 is to F1 ' (promptly clamping and release being carried out the critical air pressure of release) or lower, pressure opening and closing valve 4 commutates under the effect of adjustable spring, be in the normal state the position be the spring reset state, clamping button 7 and release button 8 could connect with gas source 15, clamps button 7 and release button 8 and just works.
If detecting the pressure of air counterbalance device interior 1, pressure opening and closing valve 4 is higher than F1 ', then pressure opening and closing valve 4 is in the adjustable spring confined state, the control gas circuit of described clamping button 7 and release button 8 disconnects by pressure opening and closing valve 4 and gas source 1, it is inoperative to clamp button 7 and release button 8, guaranteed suspender in clamping weight lifting process, can not cause weight to fall, take place major accident because of maloperation.
Six, the die technical scheme of detailed structure of protection gas circuit 19:
In aforesaid overall technological scheme of the present invention; the described protection gas circuit 19 of dying is to establish draught excluder 12 on the gas circuit of the clamping air cavity that clamps cylinder 11 and two five-way valves 9 of double air controlled; described draught excluder 12 is for being controlled the boiler check valve of its reverse-conducting by outside control mouth; its forward is for clamping the air cavity airintake direction; it oppositely is the direction of non-return direction for the clamping air cavity exhaust of clamping cylinder 11, and its outside control mouth is communicated with the gas circuit of unclamping air cavity that clamps cylinder 11.
Seven, clamp the concrete structure of button 7, release button 8:
Further, described clamping button 7, release button 8 are working position by push button control, the normality position two position three-way valve by spring reset, when pressure opening and closing valve 4 is in the normal state the position when being adjustable spring reset, clamp button 7 and release button 8 and connect with the gas circuit of gas source 15.
The advantage of said structure is with embodiment two.
Eight, clamp the concrete structure of button 7, release button 8, present embodiment serves as that realize on the basis with embodiment four, embodiment five and embodiment seven.
When described pressure opening and closing valve 4 was in state that adjustable spring resets and described clamping button 7 and is in working position, the clamping working position of two five-way valves 9 of the gas circuit of gas source 15 and double air controlled communicated;
Perhaps when described pressure opening and closing valve 4 was in state that adjustable spring resets and described release button 8 and is in working position, the working position that unclamps of two five-way valves 9 of the gas circuit of gas source 15 and double air controlled communicated.
Nine, the structure setting and the effect of pressure indicator light 13:
The purpose of present embodiment is a minimizing accident odds.
Described safety system is established pressure indicator light 13; when described pressure opening and closing valve 4 is in working position; clamp button 7 and release button 8 and disconnect with gas source 15 gas circuits, the gas circuit of described pressure indicator light 13 communicates with gas source 15 gas circuits by pressure opening and closing valve 4.
Native system is provided with pressure indicator light 13 and shows its running state, during the equipment crane lifting service, pressure opening and closing valve 4 is in adjustable spring and is compressed the position, and promptly the air cavity pressure of air counterbalance device 1 is higher, the gas circuit of pressure indicator light 13 communicates with main gas circuit 15 by pressure opening and closing valve 4, the electric switch path of pressure indicator light 13, pressure indicator light 13 is bright, the caution operating personal, suspender is in running order, should keep energy to concentrate, carry out proper operation, in case contingency takes place.
Ten, in order to realize the goal of the invention identical with technique scheme, the method for security protection that the industrial production sling safety system described in the above technical scheme is adopted, concrete technical scheme is:
The air cavity of described air counterbalance device 1 is set and is prevented the critical air pressure of maloperation, this system is in the rising of suspender or in the process before dropping to workpiece contact frock clamp, the air cavity internal gas pressure of air counterbalance device 1 is higher than this critical air pressure, described work-holding control gas circuit 17 is in by the lock state, be that work-holding control gas circuit 17 is subjected to lifting and the restriction that clamps interlocking gas circuit 18, the operation that can not clamp and unclamp makes work-holding control gas circuit 17 remain on the work-holding state;
After the air cavity internal gas pressure that suspender drops to workpiece contact frock clamp, air counterbalance device 1 equals to be lower than this critical air pressure, described work-holding control gas circuit 17 is in operable state, be that work-holding control gas circuit 17 no longer is subjected to lifting and the restriction that clamps interlocking gas circuit 18, the operation that can clamp and unclamp makes work-holding control gas circuit 17 realize the clamping of workpiece or the operation of unclamping.
11, in order to realize the goal of the invention identical with technique scheme; the method for security protection that industrial production sling safety system described in the above technical scheme is adopted; relate generally to the method for security protection of its protection gas circuit of dying, concrete technical scheme is:
The specific implementation method of the structure that said method is in the 6th to be provided.
When normal and work-holding control gas circuit 17 is not lockable when described gas source 15 and system, clamps cylinder 11 and can do to clamp motion; Or described clamping cylinder 11 unclamps air cavity and is in high pressure conditions, and the gas circuit reverse-conducting of draught excluder 12 clamps the motion that cylinder 11 can be done to unclamp;
When described gas source 15 stopped air feed or gas circuit suddenly and takes place to leak, described when unclamping the air cavity decompression, the gas circuit of draught excluder 12 was oppositely ended, and clamps the motion that cylinder 11 can't be done to unclamp.
Controller characteristic curve in the comprehensive technique scheme, with several control system devices superpose, compound and integrate.The present invention adopts technique scheme; make in commercial production, particularly employed production suspender utilizes same source of the gas in the auto-industry production; in pneumatic power and control system, realize being mutually related multiple safety guard-safeguard; its safety system simple and reasonable for structure; easy to operate, reliable; guaranteed the safety performance of system, stopped maloperation, die, the generation of accident such as gas leakage.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or inventive concept of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (9)
1. industrial production sling safety system; described suspender is a pneumatic actuation; comprise the air counterbalance device (1) that is used for the suspender lifting; be used for the clamping cylinder (11) that workpiece tightly holds and be used to the gas source (15) that drives and control; it is characterized in that: described safety system is established suspender lifting control gas circuit (16); work-holding control gas circuit (17); lifting and the clamping interlocking gas circuit (18) and the protection gas circuit (19) of dying; above-mentioned each gas circuit is communicated with gas source (15) by same gas circuit; in the described work-holding control gas circuit (17); if clamp button (7); two five-way valves of release button (8) and double air controlled (9); in gas circuit (18) is interlocked in described lifting with clamping; if pressure opening and closing valve (4); its structure is a two-position five-way valve; its working position is communicated with the air cavity of air counterbalance device (1) by throttling governing valve (2); its normality position is resetted by adjustable springs, and the control gas circuit of described clamping button (7) and release button (8) realizes being switched on or switched off by pressure opening and closing valve (4) and gas source (15).
2. according to the described industrial production sling safety system of claim 1; it is characterized in that: in the described suspender lifting control gas circuit (16); if rising button (5); the gentle dynamic blancer air intake control valve of decline button (6) (3); the air cavity of described air counterbalance device (1) by air counterbalance device air intake control valve (3) when being in working position from gas source (15) air inlet; air counterbalance device air intake control valve (3) is controlled the air cavity air inlet that makes air counterbalance device (1) by rising button (5), is made the air cavity throttling exhaust of air counterbalance device (1) by decline button (6) control.
3. according to the described industrial production sling safety system of claim 1, it is characterized in that: make two five-way valves of double air controlled (9) be in the clamping working position by clamping button (7) control, and then make the clamping air cavity that clamps cylinder (11) from gas source (15) air inlet; By release button (8) control two five-way valves of double air controlled (9) are in and unclamp working position, so make clamp cylinder (11) unclamp air cavity from gas source (15) air inlet.
4. according to the described industrial production sling safety system of claim 3; it is characterized in that: the described protection gas circuit (19) of dying is to establish draught excluder (12) on the gas circuit of the clamping air cavity that clamps cylinder (11) and two five-way valves of double air controlled (9); described draught excluder (12) is for being controlled the boiler check valve of its reverse-conducting by outside control mouth; its forward is for clamping the air cavity airintake direction; it oppositely is the direction of non-return direction for the clamping air cavity exhaust of clamping cylinder (11), and its outside control mouth is communicated with the gas circuit of unclamping air cavity that clamps cylinder (11).
5. according to the described industrial production sling safety system of claim 2, it is characterized in that: described air counterbalance device air intake control valve (3) for working position by air operated control, normality position two position three-way valve by spring reset; Described rising button (5) and decline button (6) are working position by push button control, the normality position two position three-way valve by spring reset.
6. according to the described industrial production sling safety system of claim 5, it is characterized in that the gas circuit annexation of described suspender lifting control gas circuit (16) is:
The working position of the air cavity of air counterbalance device (1), decline button (6), rising button (5), air counterbalance device air intake control valve (3) connects successively by gas circuit;
Decline button (6) is when the normality position, and the air cavity of air counterbalance device (1) communicates with rising button (5), and when working position, the air cavity of air counterbalance device (1) communicates with throttling exhausr port on the decline button (6);
Rising button (5) is when the normality position, and the gas port sealing that communicates with decline button (6) when working position, makes the gas circuit of decline button (6) communicate with the working position of air counterbalance device air intake control valve (3);
Air counterbalance device air intake control valve (3) makes towards the gas circuit sealing of the air cavity of air counterbalance device (1) when the normality position, when working position, gas source (15) gas circuit is communicated with the air cavity of air counterbalance device (1).
7. according to the described industrial production sling safety system of claim 1; it is characterized in that: described clamping button (7), release button (8) are working position by push button control, the normality position two position three-way valve by spring reset; when pressure opening and closing valve (4) is in the normal state the position when being adjustable spring reset, clamp the gas circuit connection of button (7) and release button (8) and gas source (15).
8. the method for security protection that is adopted according to claim 1 or 2 or 3 or 5 or 6 or 7 described industrial production sling safety systems is characterized in that:
The air cavity of described air counterbalance device (1) is set and is prevented the critical air pressure of maloperation, this system is in the rising of suspender or in the process before dropping to workpiece contact frock clamp, the air cavity internal gas pressure of air counterbalance device (1) is higher than this critical air pressure, described work-holding control gas circuit (17) is in by the lock state, be that work-holding control gas circuit (17) is subjected to lifting and the restriction that clamps interlocking gas circuit (18), the operation that can not clamp and unclamp makes work-holding control gas circuit (17) remain on the work-holding state;
After the air cavity internal gas pressure that suspender drops to workpiece contact frock clamp, air counterbalance device (1) equals to be lower than this critical air pressure, described work-holding control gas circuit (17) is in operable state, be that work-holding control gas circuit (17) no longer is subjected to lifting and the restriction that clamps interlocking gas circuit (18), the operation that can clamp and unclamp makes work-holding control gas circuit (17) realize the clamping of workpiece or the operation of unclamping.
9. the method for security protection that adopted of the protection gas circuit (19) of dying in the method for security protection, particularly this system that is adopted according to the described industrial production sling safety system of claim 4 is characterized in that:
Normal and work-holding control gas circuit (17) clamps cylinder (11) and can do to clamp motion when not being lockable when described gas source (15) and system; Or described clamping cylinder (11) unclamps air cavity and is in high pressure conditions, and the gas circuit reverse-conducting of draught excluder (12) clamps the motion that cylinder (11) can be done to unclamp; When described gas source (15) stopped air feed or gas circuit suddenly and takes place to leak, described when unclamping the air cavity decompression, the gas circuit of draught excluder (12) was oppositely ended, and clamps the motion that cylinder (11) can't be done to unclamp.
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| CN102080676B (en) * | 2009-11-30 | 2013-03-20 | 中原特种车辆有限公司 | Pneumatic safety device |
| CN102641950B (en) * | 2012-04-28 | 2015-02-04 | 常州星宇车灯股份有限公司 | Air pressure clamping anti-misoperation system |
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| CN108788895B (en) * | 2018-07-12 | 2021-02-02 | 奇瑞汽车股份有限公司 | Control method of jacking clamp on skid |
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| CN110486348B (en) * | 2019-09-24 | 2023-09-05 | 洛阳智能农业装备研究院有限公司 | Electrohydraulic valve group of unmanned agricultural machinery |
| CN113753786B (en) * | 2021-08-16 | 2023-01-31 | 四川长虹智能制造技术有限公司 | Pneumatic control automatic balancing device and system |
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