CN110174258B - Static superheat degree adjustment test equipment of thermal expansion valve - Google Patents
Static superheat degree adjustment test equipment of thermal expansion valve Download PDFInfo
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- CN110174258B CN110174258B CN201910499062.4A CN201910499062A CN110174258B CN 110174258 B CN110174258 B CN 110174258B CN 201910499062 A CN201910499062 A CN 201910499062A CN 110174258 B CN110174258 B CN 110174258B
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
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Abstract
The invention discloses a static superheat degree adjustment test device of a thermal expansion valve, which comprises a rack and a workbench, wherein a first manipulator transmission module, a second manipulator transmission module, a constant temperature tank device and an air storage tank device are sequentially arranged on the rack; the workbench is sequentially arranged in the center of the frame, and is sequentially provided with a feeding conveying module, a power head screwing module, a workpiece pre-pressing module, a workpiece overturning module, a 0-degree pre-cooling module, a 0-degree actuating module, a MOP pre-cooling module, a MOP actuating module, a overturning blanking module, so that the steps of automatic feeding, automatic adjustment, automatic testing, automatic blanking and the like can be simultaneously realized, the integration is high, and the production efficiency and the stability and consistency of product delivery are greatly improved. The invention aims at improving the problems of single detection index, low integration and the like of the existing test equipment. The invention has the advantages of reducing enterprise management cost, improving production test efficiency, improving product quality and the like.
Description
Technical Field
The invention relates to the technical field of detection equipment of a thermal expansion valve, in particular to static superheat degree adjustment test equipment of the thermal expansion valve.
Background
The thermostatic expansion valve is a control element for automatically regulating the flow of refrigerant flowing into the heat exchanger of the air conditioner according to the changes of the pressure of refrigerant at the inlet and outlet of the evaporator and the temperature of refrigerant at the outlet. The air conditioner can play roles in throttling and reducing pressure, regulating flow, keeping a certain degree of superheat, and preventing liquid impact and abnormal overheat in a refrigeration system. The superheat degree from the fully closed state to the starting opening point in the operation process of the thermal expansion valve is called the static superheat degree of the thermal expansion valve. The static superheat degree is used as one of important performance parameters of the thermal expansion valve, and whether the thermal expansion valve can be accurately regulated and detected is a key for ensuring the quality of a thermal expansion valve product. When the traditional adjustment and detection of the static superheat degree of the thermal expansion valve is carried out, the actual production requirement is difficult to meet, and the consistence of the thermal expansion valve product delivery cannot be ensured. At present, partial overheat testing equipment and power head tightening equipment are put into use in production, but because the detection index is single and the integration is low, operators are required to feed and move workpieces manually between the working procedures, and the production efficiency is low. Meanwhile, the manpower cost is high, and the enterprise management difficulty is gradually increased.
Therefore, the invention aims to solve the problems of improving the integration of the static superheat degree adjusting equipment of the thermal expansion valve and improving the testing efficiency, thereby ensuring the improvement of the production efficiency and the product quality, reducing the enterprise management cost, saving the energy and bringing great social and economic benefits to enterprises.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a static superheat degree adjusting and testing device for a thermal expansion valve, so as to solve the technical problems of single detection index, low integration and the like of the testing device in the prior art.
The invention is realized by the following technical scheme: the invention discloses a static superheat degree adjustment test device of a thermal expansion valve, which comprises:
the rack is provided with a first manipulator transmission module, a second manipulator transmission module, a constant temperature tank device and an air storage tank device;
the workbench is arranged in the center of the frame, and is sequentially provided with a feeding conveying module, a power head screwing module, a workpiece pre-pressing module, a workpiece overturning module, a 0-degree pre-cooling module, a 0-degree actuating module, a MOP pre-cooling module, a MOP actuating module and an overturning blanking module;
the feeding and conveying module is used for conveying the workpiece to the power head screwing module, the workpiece prepressing module and the workpiece overturning module respectively;
the power head tightening module is used for detecting and adjusting the assembly consistency of the workpiece;
the workpiece pre-pressing module is used for ventilating and pre-pressing the workpiece after the detection and adjustment of the power head tightening module;
the workpiece overturning module is used for overturning the workpiece after ventilation and prepressing of the workpiece prepressing module;
the 0-degree pre-cooling module is used for adjusting the temperature of the temperature sensing part of the workpiece transferred from the workpiece overturning module;
the 0-degree actuating module is used for maintaining the temperature of the temperature sensing part of the workpiece after the 0-degree precooling module is actuated and adjusting the static superheat value of the workpiece to a fixed value;
the MOP pre-cooling module is used for gasifying the refrigerant medium in the workpiece after the 0-degree actuating module acts;
the MOP actuating module is used for maintaining the temperature of the temperature sensing part of the workpiece after the MOP precooling module is actuated and detecting the leakage value of the workpiece;
the overturning blanking module is used for overturning the qualified test product detected by the MOP actuating module;
the first manipulator transmission module is used for simultaneously carrying the workpieces from the workpiece overturning module to the 0-degree precooling module, the workpieces from the 0-degree precooling module to the 0-degree actuating module and the workpieces from the 0-degree actuating module to the MOP precooling module.
And the second manipulator transmission module is used for simultaneously carrying the work pieces from the MOP precooling module to the MOP actuating module, the work pieces from the MOP actuating module to the overturning blanking module and the work pieces on the overturning blanking module.
Preferably, in order to guarantee the efficiency of work piece transportation and guarantee the product quality of work piece, the material loading transport module includes the material loading supporting seat, the top of material loading supporting seat is provided with the tow chain groove and passes through the material loading translation cylinder of a horizontal fixed plate connection, the material loading translation cylinder is connected with tow chain support and material loading lift cylinder through vertical fixed plate, material loading translation cylinder control tow chain support drives the transport tow chain and moves on the tow chain groove, the material loading cylinder drives the material loading lift cylinder simultaneously and carries out lateral movement, the material loading lift cylinder is reciprocal elevating movement through a mount control sucking disc support, install a plurality of vacuum chuck on the sucking disc support. The one-time action of the feeding conveying module can be connected with a plurality of modules, and the vacuum chuck cannot scratch a workpiece, so that the product quality is ensured.
Preferably, in order to assemble the power head and the valve body of the workpiece in place and improve the adaptability of the power head tightening module, the power head tightening module comprises a first base, wherein a cylinder supporting seat and a top plate supporting seat are symmetrically arranged on two sides of the first base, a power head tightening cylinder is fixed on each cylinder supporting seat, two top plate supporting seats are connected through a connecting rod, a top plate penetrates through the top plate supporting seat, one end of the top plate is connected with the power head tightening cylinder, and the other end of the top plate is connected with a power head jacking claw; the center department of base one still is provided with valve body roating seat and photoelectric sensor, and photoelectric sensor is come shading through setting up the dog that resets on the valve body roating seat and is triggered, and the inside nestification of valve body roating seat has the valve body fixing base, and the valve body fixing base is used for placing vacuum chuck and absorbs the work piece that shifts. In actual work, the valve body fixing seat can be detached and replaced according to workpieces with different specifications.
Preferably, in order to ensure that the components inside the workpiece are assembled in place, the workpiece pre-pressing module comprises a second base, pre-pressing cylinders are symmetrically fixed on two sides of the second base, each pre-pressing cylinder is connected with a second transverse fixing plate, one second transverse fixing plate is fixed with a first valve body clamping block, the other transverse fixing plate is fixed with a second valve body clamping block, a first low-pressure port air blocking plug and a high-pressure port air blocking plug are arranged on the first valve body clamping block, a pre-pressing air inlet pipe orifice, a first evaporator outlet air blocking plug and a first evaporator inlet air blocking plug are arranged on the second valve body clamping block, a first workpiece fixing seat is arranged in the center of the second base, and a first correction support block is connected to the first workpiece fixing seat. Meanwhile, the correction support block has a guiding function, so that the feeding conveying module is prevented from being misplaced or inclined when conveyed to the workpiece fixing seat, manual nursing is omitted, and the production efficiency of the workpiece fixing seat is improved.
Preferably, in order to reduce the shake that the unit head upset produced for its stabilization time is favorable to manipulator transmission module to accurately snatch the work piece and transport, and work piece upset module includes the upset cylinder block, is fixed with the upset cylinder on the upset cylinder block, and the transverse fixing plate three is being connected to the upset cylinder, and the fixed finger cylinder of transverse fixing plate three one side is first, and the fixed balancing piece of opposite side, finger cylinder one snatch the work piece from work piece fixing base two, and the top of work piece fixing base two is provided with sweeps the sign indicating number camera, sweeps the sign indicating number camera and installs at the top of mount three through the linking bridge.
Preferably, in order to improve the testing efficiency, the structure of the 0-degree precooling module and the structure of the MOP precooling module are the same, the 0-degree precooling module comprises a workpiece fixing frame, a plurality of workpiece fixing seats III are placed in the workpiece fixing frame and are fixed on a workbench through connecting plates, round holes are formed in the bottoms of the workpiece fixing seats III, and air blowing pipe orifices I are formed in two sides of the workpiece fixing seats III. The plurality of work pieces are synchronously tested by the arrangement of the plurality of stations, so that the testing efficiency is improved; after the workpiece precooling operation, water drops are reserved on the power head, and the air blowing pipe orifice is arranged to blow off the water drops on the power head and then send the workpiece to the 0-degree actuating module.
Preferably, in order to improve the applicability of the invention, the 0-degree actuating module and the MOP actuating module are provided with the same workpiece fixing device, the workpiece fixing device comprises a workpiece fixing seat four with a round hole at the bottom, actuating cylinder seats are symmetrically fixed on two lateral sides of the workpiece fixing seat four, the actuating cylinder seats are connected through sliding rods and connecting blocks, workpiece fixing seat clamps are arranged on two longitudinal sides of the workpiece fixing seat four, and buckling columns connected above the workpiece fixing seat four are buckled through horizontal buckles above the workpiece fixing seat clamps; the two actuating cylinder seats are connected with actuating cylinders with the same structure, the two actuating cylinders drive a transverse fixing plate IV with the same structure to move on a sliding rod, one transverse fixing plate IV is fixedly provided with a third valve body clamping block, the other transverse fixing plate IV is fixedly provided with a fourth valve body clamping block, the third valve body clamping block is provided with a high-pressure port air inlet pipe orifice, a second pressure port air blocking plug and a high-pressure port air blocking plug, and the fourth valve body clamping block is provided with an evaporator inlet air inlet pipe orifice, an evaporator outlet air blocking plug and an evaporator inlet air blocking plug; and the outer sides of the two connecting blocks are provided with a second air blowing pipe orifice which passes through the connecting blocks, the workpiece fixing seat clamp and the inner wall of the workpiece fixing seat IV. The horizontal buckle is arranged to facilitate the replacement of the workpiece fixing seat clamp, the adaptability to workpieces of different specifications can be improved, water drops are reserved on the power head of the workpiece after the workpiece precooling operation, and the air blowing pipe orifice is arranged to blow away the water drops on the power head and then send the workpiece to the MOP actuating module.
Preferably, in order to enable a simple and convenient translational and lifting movement of the 0 degree actuation module. The 0-degree actuating module comprises an actuating translation cylinder arranged above an actuating cylinder seat, the actuating translation cylinder is connected through a translation cylinder fixing frame, the actuating translation cylinder drives a lifting cylinder fixing frame to do translation movement, the lifting cylinder fixing frame is connected with an actuating lifting cylinder, and the actuating lifting cylinder controls an alternating current servo motor II with a speed reducer II to do lifting movement.
Preferably, in order to be able to overturn the workpiece rapidly, the overturning blanking module comprises a base III, the base III is fixedly provided with a rotary cylinder through a connecting column, and the rotary cylinder drives a finger cylinder II to rotate. The orientation of the power head of the workpiece before overturning is vertically downward, and because the top of the power head is not in a plane shape, the valve body of the workpiece after overturning is vertically downward, and the workpiece can be stably placed on a plane, and meanwhile packaging is facilitated.
Preferably, in order to ensure that the transmission speed of the manipulator transmission module is consistent with the beat of the workpiece detection procedure of the invention, the first manipulator transmission module and the second manipulator transmission module have the same structure, and the first manipulator transmission module comprises a four-axis manipulator which grips the workpiece through a finger cylinder three.
The invention discloses a static superheat degree adjustment test device of a thermal expansion valve, which is compared with the prior art:
according to the invention, a plurality of modules such as power head screwing, 0-degree precooling, 0-degree actuating, MOP precooling and MOP actuating are integrated to replace the conventional single functional equipment, so that the occupied area of the equipment is reduced, and the resource utilization rate is improved;
according to the invention, the modules independently act in parallel, the workpiece circulation is connected through the feeding conveying module, the first manipulator conveying module and the second manipulator conveying module, so that an automatic feeding and discharging function is realized, the problem that workpieces are required to be manually transferred among a plurality of devices in the prior art is solved, and the manual management cost of enterprises is reduced. The invention greatly improves the production efficiency and ensures the stability and consistency of the product delivery. The invention has the advantages of reducing enterprise management cost, improving production test efficiency, improving product quality and the like.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a partial top view of the present invention;
FIG. 3 is a perspective view of a loading conveyor module according to the present invention;
FIG. 4 is a perspective view of a power head tightening module of the present invention;
FIG. 5 is a perspective view of a workpiece pre-compression module of the present invention;
FIG. 6 is a perspective view of a workpiece flipping module of the present invention;
FIG. 7 is a perspective view of a 0 degree pre-cooling module according to the present invention;
FIG. 8 is a perspective view of a MOP actuator module according to the present invention;
FIG. 9 is a partial perspective view of the 0 degree actuation module of the present invention;
FIG. 10 is a perspective view of a roll-over blanking module according to the present invention;
fig. 11 is a perspective view of a first manipulator transfer module according to the present invention.
Detailed Description
The following describes in detail the examples of the present invention, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of protection of the present invention is not limited to the following examples.
Example 1
The embodiment 1 discloses a static superheat degree adjustment test device of a thermal expansion valve, which is shown in fig. 1 and 2 and comprises a frame 1 and a workbench 2, wherein the workbench 2 is fixed in the center of the frame through threads, and a feeding conveying module 3, a power head screwing module 4, a workpiece pre-pressing module 5, a workpiece overturning module 6, a 0-degree pre-cooling module 7, a 0-degree actuating module 8, a MOP pre-cooling module 9, a MOP actuating module 10, an overturning and blanking module 11 and a reject conveying belt 12 are sequentially arranged on the workbench 2; the top of the frame 2 is provided with a first manipulator transmission module 13 and a second manipulator transmission module 14, and the bottom of the frame 2 is provided with a constant temperature tank device 15 and a gas storage tank device 16; the modules independently act, and the invention can regulate and test a plurality of products at one time, and the production beat can reach 10 seconds/time;
the feeding and conveying module 3 is used for conveying the workpiece to the power head screwing module 4, the workpiece prepressing module 5 and the workpiece overturning module 6 respectively; realizing automatic conveying of workpieces at three parts of the power head screwing module 4, the workpiece prepressing module 5 and the workpiece overturning module 6;
the power head tightening module 4 is used for detecting and adjusting the assembly consistency of the workpiece; the device comprises a power head for fixing a thermal expansion valve, and a valve body for rotating the thermal expansion valve, wherein the torque force of the power head and the valve body reaches a certain actuation value to detect and adjust the consistency of assembly; (the thermal expansion valve comprises a power head, a temperature sensing part and a valve body)
The workpiece pre-pressing module 5 is used for ventilating and pre-pressing the adjusted workpiece detected by the power head tightening module 4; the method specifically comprises the steps of plugging an evaporator outlet, an evaporator inlet and a low-pressure port on a valve body, and ventilating and prepressing the valve body through a high-pressure port;
the workpiece overturning module 6 is used for overturning the workpiece after ventilation and prepressing of the workpiece prepressing module 5; the manipulator is convenient to grasp and detect the next procedure;
a 0-degree pre-cooling module 7 for adjusting the temperature of the temperature sensing part of the workpiece transferred from the workpiece turning module 6; specifically, the temperature of a temperature sensing part on a power head is regulated to be stable at a prescribed temperature;
a 0-degree actuating module 8 for maintaining the temperature of the temperature sensing part of the workpiece after the 0-degree precooling module 7 is actuated to be constant and adjusting the static superheat value of the workpiece to a fixed value; the static superheat value can be adjusted to a set value by rotating the adjusting bolt through the servo motor, and the static superheat value can be used for testing the internal leakage value of the valve port;
the MOP (Maxmum Operating Pressure maximum operating pressure) precooling module 9 is used for gasifying the refrigerant medium in the workpiece after the 0-degree actuating module 8 acts; the temperature of the temperature sensing part is regulated to a specified temperature sensing temperature, so that the medium in the power head is gasified completely, and the inside of the power element reaches the maximum working pressure;
the MOP actuating module 10 is used for maintaining the temperature of the temperature sensing part of the workpiece after the MOP precooling module 9 is actuated, and detecting the leakage value of the workpiece; the method specifically comprises the steps of maintaining the temperature of the temperature sensing part unchanged, testing the maximum working pressure, monitoring the filling quantity of the refrigerant medium, detecting whether the filling medium leaks or not, and detecting the leakage value of the balance part;
the overturning blanking module 11 is used for overturning the qualified products after detection by the MOP actuating module 10, so that the workpieces can be conveniently packaged and stored;
the first manipulator transmission module 13 is used for simultaneously carrying the workpieces from the workpiece overturning module 6 to the 0-degree precooling module 7, the workpieces from the 0-degree precooling module 7 to the 0-degree actuating module 8 and the workpieces from the 0-degree actuating module 8 to the MOP precooling module 9. Thereby realizing the automatic transportation of the workpieces around the workpiece overturning module 6, the 0-degree precooling module 7, the 0-degree actuating module 8 and the MOP precooling module 9;
the second manipulator transmission module 14 is used for simultaneously carrying the workpieces from the MOP pre-cooling module 9 to the MOP actuating module 10, the workpieces from the MOP actuating module 10 to the turnover blanking module 11 and the workpieces on the turnover blanking module 11. Thereby realizing automatic carrying of workpieces at three positions of the MOP precooling module 9, the MOP actuating module 10 and the overturning blanking module 11 and sorting qualified products and unqualified products.
As shown in fig. 1, 2 and 3, the feeding conveying module 3 comprises a feeding supporting seat 301, a drag chain groove 302 and a feeding translation cylinder 304 connected through a first transverse fixing plate 303 are arranged above the feeding supporting seat 301, the feeding translation cylinder 304 is connected with a drag chain bracket 306 and a feeding lifting cylinder 307 through a longitudinal fixing plate 305, the drag chain bracket 306 is controlled to drive a carrying drag chain 308 to move on the drag chain groove 302, the feeding lifting cylinder 307 is controlled to transversely move, the feeding lifting cylinder 307 is connected with a sucker bracket 310 through a first fixing frame 309 below the feeding lifting cylinder, 3 vacuum suckers 311 are arranged on the sucker bracket 310 and used for sucking and placing first workpieces 312 on three modules of the power head screwing module 4, the workpiece pre-pressing module 5 and the workpiece overturning module 6, and carrying workpieces between adjacent stations.
As shown in fig. 1, 2 and 4, the power head tightening module 4 comprises a first base 401, two symmetrical positions of the first base 401 are respectively provided with a cylinder supporting seat 402 and a top plate supporting seat 403 with the same structure, two power head clamping cylinders 404 with the same structure are fixed on the two cylinder supporting seats 402, the two top plate supporting seats 403 are connected through a connecting rod 405, a top plate 406 penetrates through the top plate supporting seat 403, one end of the top plate 406 is connected with the power head clamping cylinders 404, and the other end is connected with a power head top claw 407; the center of the first base 401 is also provided with a valve body rotating seat 408 and a photoelectric sensor 409, the photoelectric sensor 409 is triggered by a reset stop block 410 arranged on the valve body rotating seat 408 to realize the rotation and reset of the valve body rotating seat 408 after each adjustment, a valve body fixing seat 411 is nested inside the valve body rotating seat 408 and used for placing a second workpiece 412 sucked and transferred by the vacuum chuck 311, a rotating shaft below the valve body rotating seat 408 penetrates through the first base 401 and is connected with a first gear motor 414 through a coupling 413, an alternating current servo motor 415 connected with the first gear motor 414 provides rotating power, and the rotating power is fixed below the first base 401 through a second fixing frame 416.
As shown in fig. 1, 2 and 5, the workpiece pre-pressing module 5 includes a second base 501, pre-pressing cylinders 502 with the same structure are respectively fixed at symmetrical positions on two sides of the second base 501, the two pre-pressing cylinders 502 are connected with a second transverse fixing plate 503 with the same structure, a first valve body clamping block 504 is fixed on one side of the second transverse fixing plate 503, a second valve body clamping block 505 is fixed on the other side of the second transverse fixing plate, a first low-pressure air blocking plug 506 and a high-pressure air blocking plug 507 are arranged on the first valve body clamping block 504, a pre-pressing air inlet pipe orifice 508, an evaporator outlet air blocking plug 509 and an evaporator inlet air blocking plug 510 are arranged on the second valve body clamping block 505, a first workpiece fixing seat 511 is arranged at the center of the second base 501, and a correction support block 512 is connected on the first workpiece fixing seat 511 for guiding the vacuum suction cup 311 to suck and transfer workpieces to accurately fall, and meanwhile, each air blocking plug and each air blocking plug are convenient for accurately blocking each interface of the valve body. After the workpiece falls into the first workpiece fixing seat 511, the pre-pressing cylinders 502 at two sides drive the valve body clamping blocks to eject out, so that each air blocking plug and the air ventilation plug each interface of the valve body, air is introduced through the pre-pressing air inlet pipe orifice 508, air flows through the first evaporator outlet air ventilation plug 509 and enters the high-pressure interface of the workpiece valve body, and other interfaces of the valve body are blocked by the air blocking plugs, so that the ventilation pre-pressing effect is realized.
As shown in fig. 1, 2 and 6, the workpiece overturning module 6 includes an overturning cylinder seat 601, an overturning cylinder 602 is fixed on the overturning cylinder seat 601, the overturning cylinder 602 is connected with a third transverse fixing plate 603, a first finger cylinder 604 is fixed on one side of the third transverse fixing plate 603, a balance block 605 is fixed on the other side of the third transverse fixing plate 603, the first finger cylinder 604 is used for grabbing a third workpiece 607 from a second workpiece fixing seat 606 to overturn 180 degrees, the first manipulator conveying module 13 is convenient for grabbing and carrying out the next procedure, a code scanning camera 608 is arranged right above the second workpiece fixing seat 606, and the code scanning camera 608 is arranged at the top of a third fixing frame 610 through a connecting bracket 609. After the third workpiece 607 falls into the second workpiece fixing seat 606, the barcode scanning camera 608 firstly reads the barcode on the workpiece, after the completion, the first finger cylinder 604 is closed to grasp the third workpiece 607, and the overturning cylinder 602 drives the first finger cylinder 604 to overturn, so that the third workpiece 607 is overturned, and the first manipulator conveying module 13 is waited to grasp.
As shown in fig. 1, fig. 2 and fig. 7, the structure of the 0-degree pre-cooling module 7 is the same as that of the MOP pre-cooling module 9, the functions are similar, taking the 0-degree pre-cooling module 7 as an example, the 0-degree pre-cooling module 7 comprises a workpiece fixing frame 701, a plurality of workpiece fixing seats three 703 fixed on the workbench 2 through a connecting plate 702 can be placed in the workpiece fixing frame 701, a round hole is formed in the bottom of the workpiece fixing seat three 703, a workpiece power head placed in the workpiece fixing seat three 703 can penetrate through the workbench 2 to the lower side of the workbench 2, a constant temperature tank device 15 is fixed below the workbench 2, and liquid in the constant temperature tank device 15 can be immersed in the bottom of the workpiece fixing seat three 703, so that a temperature sensing part of a workpiece four 704 can be conveniently fully contacted with the liquid of the constant temperature tank device 15, and a blowing pipe orifice one 705 is further arranged at two sides of the workpiece fixing seat three 703 for blowing off liquid drops on the surface of the temperature sensing part after the workpiece pre-cooling is completed.
As shown in fig. 1, 2 and 8, the 0-degree actuating module 8 and the MOP actuating module 10 have the same workpiece fixing device, taking the MOP actuating module 10 as an example, the workpiece fixing device comprises a workpiece fixing seat four 1001 with a round hole at the bottom, so that a workpiece power head placed in the workpiece fixing seat four 1001 can pass through a workbench 2 to the lower part of the workpiece fixing seat, a constant temperature tank device 15 is fixed below the workbench 2, liquid in the constant temperature tank device 15 can be immersed to the bottom of the workpiece fixing seat four 1001, so that a temperature sensing part of a workpiece can be conveniently contacted with the liquid of the constant temperature tank device 15 fully, the temperature sensing part is kept constant, actuating cylinder seats 1004 with the same structure and connected with two connecting blocks 1003 are fixed at two lateral sides of the workpiece fixing seat four 1001, a workpiece fixing seat clamp 1005 is arranged at two longitudinal sides of the workpiece fixing seat four, the workpiece fixing seat 1006 can be buckled on a buckling column 1007 connected with the upper part of the workpiece fixing seat four 1001 through a horizontal buckle 1006, and the workpiece fixing seat 1006 can be taken out by just opening the horizontal buckle 1006, so that workpieces 1005 can be replaced by different sizes; the two actuating cylinder seats 1004 are connected with actuating cylinders 1008 with the same structure, the two actuating cylinders 1008 can drive a transverse fixing plate IV 1009 with the same structure to move on the slide bar 1002, a third valve body clamping block 1010 is fixed on one side of the transverse fixing plate IV 1009, a fourth valve body clamping block 1011 is fixed on the other side of the transverse fixing plate IV, a high-pressure port air inlet pipe orifice 1012, a low-pressure port air blocking plug II 1013 and a high-pressure port air blocking plug 1014 are arranged on the third valve body clamping block 1010, and an evaporator inlet air inlet pipe orifice 1015, an evaporator outlet air inlet pipe orifice 1016, an evaporator outlet air blocking plug II 1017 and an evaporator inlet air blocking 1018 are arranged on the fourth valve body clamping block 1011; the outer sides of the two connecting blocks 1003 are provided with a second air blowing pipe orifice 1019 passing through the inner walls of the connecting blocks 1003, the workpiece fixing seat clamp 1005 and the workpiece fixing seat four 1001, and the second air blowing pipe orifice is used for blowing off liquid drops on the surface of the temperature sensing part after the workpiece test is completed. After the workpiece falls into the workpiece fixing seat IV 1001, the two actuating cylinders 1008 are ejected to drive the transverse fixing plate IV 1009 to move on the slide bar 1002, so that the valve body clamping blocks on the fixing plate clamp the valve body of the workpiece, the air blocking plugs and the air ventilation plugs are plugged into the interfaces of the valve body, and the test and regulation conditions are achieved by changing the air inlet and outlet of the high-pressure air inlet pipe orifice 1012, the evaporator inlet air inlet pipe orifice 1015 and the evaporator outlet air inlet pipe orifice 1016.
As shown in fig. 1, 2 and 9, the 0-degree actuating module 8 comprises an actuating translation cylinder 802 arranged above an actuating cylinder seat 1004 at one side and connected with a translation cylinder fixing frame 801, the actuating translation cylinder 802 drives a lifting cylinder fixing frame 803 to perform translation movement, the lifting cylinder fixing frame 803 is connected with an actuating lifting cylinder 804, and the actuating lifting cylinder 804 controls an alternating current servo motor 806 with a speed reducer II 805 to perform lifting movement, so that an adjusting screw 807 at the bottom end of a workpiece is adjusted by an adjusting screw 807 at the bottom. After the workpiece in the workpiece fixing seat IV 1001 is clamped, the lifting cylinder fixing frame 803 is driven to extend by the actuating translation cylinder 802, then the actuating lifting cylinder 804 on the lifting cylinder fixing frame 803 controls the alternating current servo motor II 806 with the speed reducer II 805 to perform lifting movement, the adjusting screw 807 below the alternating current servo motor II 806 is aligned with the adjusting screw at the bottom end of the workpiece, and the static superheat value of the workpiece is adjusted to a set value by rotating the alternating current servo motor II 806.
As shown in fig. 1, 2 and 10, the overturning blanking module 11 comprises a base three 1101, the base three 1101 is provided with a rotary cylinder 1103 fixed through a connecting column 1102, a finger cylinder two 1104 is fixed on the rotary cylinder 1103, and after the finger cylinder two 1104 is closed to grab a workpiece five 1105, the rotary cylinder 1103 rotates 180 degrees, so that overturning of the workpiece five 1105 is realized.
As shown in fig. 1, 2 and 11, the first manipulator transmission module 12 and the second manipulator transmission module 13 have the same structure, and taking the first manipulator transmission module 12 as an example, the first manipulator transmission module 12 includes a four-axis manipulator 1201, and the four-axis manipulator 1201 grabs the workpiece six 1203 for carrying and transferring through a finger cylinder three 1202 fixed below.
A workpiece which is assembled preliminarily is automatically absorbed and transferred to a power head tightening module 4 by a feeding conveying module 3 to be detected and the torque value between the power head and a valve body is regulated, the workpiece is absorbed and transferred to a workpiece pre-pressing module 5 by the feeding conveying module 3 to be aerated and pre-pressed after the completion of the pre-pressing, the workpiece is absorbed and transferred to a workpiece overturning module 6 by the feeding conveying module 3 to be overturned by 180 degrees, the overturned workpiece is grabbed by a first manipulator conveying module 13 to be put into a 0-degree pre-cooling module 7 to regulate the temperature of a temperature sensing part on the power head of the workpiece, and after the temperature of the temperature sensing part is stabilized at a specified temperature value, the first manipulator conveying module 13 grabs the workpiece to be put into the 0-degree actuating module 8 to regulate the static superheat value of the workpiece, and meanwhile the internal leakage value of a valve port is tested. After the process is finished, the first manipulator transmission module 13 grabs the workpiece and places the workpiece into the MOP pre-cooling module 9, the temperature of the temperature sensing part is increased to the specified temperature sensing temperature, then the second manipulator transmission module 14 grabs the workpiece and places the workpiece into the MOP actuating module 10 for detection, the second manipulator transmission module 14 rejects the unqualified products and places the unqualified products into the conveying belt 12, and the second manipulator transmission module 14 grabs the unqualified products and transfers the unqualified products to the overturning and blanking module 11 for blanking and packaging.
According to the invention, a plurality of modules such as power head screwing, 0-degree precooling, 0-degree actuating, MOP precooling and MOP actuating are integrated to replace the conventional single functional equipment, so that the occupied area of the equipment is reduced, and the resource utilization rate is improved;
the modules independently act in parallel, the workpiece circulation is connected through the feeding conveying module 3, the first manipulator conveying module 13 and the second manipulator conveying module 14, the automatic feeding and discharging functions are realized, the problem that workpieces are required to be manually transferred among a plurality of devices in the prior art is solved, and the manual management cost of enterprises is reduced. The invention greatly improves the production efficiency and ensures the stability and consistency of the product delivery. The invention has the advantages of reducing enterprise management cost, improving production test efficiency, improving product quality and the like.
Claims (10)
1. A thermal expansion valve stationary superheat degree adjustment test device, comprising:
the rack is provided with a first manipulator transmission module, a second manipulator transmission module, a constant temperature tank device and an air storage tank device;
the workbench is arranged in the center of the frame, and is sequentially provided with a feeding conveying module, a power head screwing module, a workpiece pre-pressing module, a workpiece overturning module, a 0-degree pre-cooling module, a 0-degree actuating module, a MOP pre-cooling module, a MOP actuating module and an overturning blanking module;
the feeding conveying module is used for conveying the workpiece to the power head screwing module, the workpiece prepressing module and the workpiece overturning module respectively;
the power head tightening module is used for detecting and adjusting the assembly consistency of the workpiece;
the workpiece pre-pressing module is used for ventilating and pre-pressing the adjusted workpiece detected by the power head tightening module;
the workpiece overturning module is used for overturning the workpiece after ventilation and prepressing of the workpiece prepressing module;
the 0-degree pre-cooling module is used for adjusting the temperature of the temperature sensing part of the workpiece transferred from the workpiece overturning module;
the 0-degree actuating module is used for maintaining the temperature of the temperature sensing part of the workpiece after the 0-degree precooling module is actuated and adjusting the static superheat value of the workpiece to a fixed value;
the MOP pre-cooling module is used for gasifying the refrigerant medium in the workpiece after the 0-degree actuating module acts;
the MOP actuating module is used for maintaining the temperature of the temperature sensing part of the workpiece after the MOP precooling module acts and detecting the leakage value of the workpiece;
the overturning blanking module is used for overturning the qualified test product detected by the MOP actuating module;
the first manipulator transmission module is used for simultaneously carrying the workpiece from the workpiece overturning module to the 0-degree pre-cooling module, the workpiece from the 0-degree pre-cooling module to the 0-degree actuating module and the workpiece from the 0-degree actuating module to the MOP pre-cooling module;
the second manipulator transmission module is used for simultaneously carrying the MOP precooling module to the workpiece of the MOP actuating module, the MOP actuating module to the workpiece of the overturning blanking module and the workpiece on the overturning blanking module.
2. The static superheat degree adjustment test device of a thermal expansion valve according to claim 1, wherein the feeding conveying module comprises a feeding supporting seat, a drag chain groove and a feeding translation cylinder connected through a transverse fixing plate are arranged above the feeding supporting seat, the feeding translation cylinder is connected with a drag chain support and a feeding lifting cylinder through a longitudinal fixing plate, the feeding translation cylinder controls the drag chain support to drive a carrying drag chain to move on the drag chain groove, meanwhile, the feeding translation cylinder drives the feeding lifting cylinder to transversely move, the feeding lifting cylinder controls a sucker support to reciprocate through a fixing frame, and a plurality of vacuum suckers are mounted on the sucker support.
3. The static superheat degree adjustment test device of a thermostatic expansion valve according to claim 2, wherein the power head tightening module comprises a first base, a cylinder supporting seat and a top plate supporting seat are symmetrically arranged on one two sides of the first base, a power head tightening cylinder is fixed on each cylinder supporting seat, the two top plate supporting seats are connected through a connecting rod, a top plate penetrates through the top plate supporting seat, one end of the top plate is connected with the power head tightening cylinder, and the other end of the top plate is connected with a power head pushing claw; the center department of base one still is provided with valve body roating seat and photoelectric sensor, photoelectric sensor is in through setting up reset dog on the valve body roating seat comes the shading to trigger, the inside nested valve body fixing base that has of valve body roating seat, the valve body fixing base is used for placing the work piece that vacuum chuck absorbs the transfer.
4. The static superheat degree adjustment test device of a thermostatic expansion valve according to claim 1, wherein the workpiece pre-pressing module comprises a second base, pre-pressing cylinders are symmetrically fixed on two sides of the second base, each pre-pressing cylinder is connected with a second transverse fixing plate, one second transverse fixing plate is fixedly provided with a first valve body clamping block, the other transverse fixing plate is fixedly provided with a second valve body clamping block, the first valve body clamping block is provided with a first low-pressure port air blocking plug and a high-pressure port air blocking plug, the second valve body clamping block is provided with a pre-pressing air inlet pipe orifice, an evaporator outlet air blocking plug and an evaporator inlet air blocking plug, the center of the second base is provided with a first workpiece fixing seat, and the first workpiece fixing seat is connected with a correction support block.
5. The static superheat degree adjustment test device of a thermal expansion valve according to claim 1, wherein the workpiece overturning module comprises an overturning cylinder seat, an overturning cylinder is fixed on the overturning cylinder seat, the overturning cylinder is connected with a transverse fixing plate III, a finger cylinder I is fixed on one side of the transverse fixing plate III, a balance block is fixed on the other side of the transverse fixing plate III, the finger cylinder I grabs a workpiece from a workpiece fixing seat II, a code scanning camera is arranged above the workpiece fixing seat II, and the code scanning camera is installed on the top of a fixing frame III through a connecting bracket.
6. The static superheat degree adjustment test device of a thermal expansion valve according to claim 1, wherein the 0-degree precooling module and the MOP precooling module have the same structure, the 0-degree precooling module comprises a workpiece fixing frame, a plurality of workpiece fixing seats III are arranged in the workpiece fixing frame, the workpiece fixing seats III are fixed on the workbench through connecting plates, round holes are formed in the bottoms of the workpiece fixing seats III, and air blowing pipe orifices I are formed in two sides of the workpiece fixing seats III.
7. The static superheat degree adjustment test device of a thermostatic expansion valve according to claim 1, wherein the 0-degree actuating module and the MOP actuating module are provided with the same workpiece fixing device, the workpiece fixing device comprises a workpiece fixing seat four with a round hole at the bottom, actuating cylinder seats are symmetrically fixed on two lateral sides of the workpiece fixing seat four, the actuating cylinder seats are connected through a sliding rod and a connecting block, workpiece fixing seat clamps are arranged on two longitudinal sides of the workpiece fixing seat four, and buckling columns connected above the workpiece fixing seat four are buckled through horizontal buckles above the workpiece fixing seat clamps; the two actuating cylinder seats are connected with actuating cylinders with the same structure, the two actuating cylinders drive a transverse fixing plate IV with the same structure to move on the sliding rod, one transverse fixing plate IV is fixedly provided with a third valve body clamping block, the other transverse fixing plate IV is fixedly provided with a fourth valve body clamping block, the third valve body clamping block is provided with a high-pressure air inlet pipe orifice, a low-pressure air blocking plug II and a high-pressure air blocking plug, and the fourth valve body clamping block is provided with an evaporator inlet air inlet pipe orifice, an evaporator outlet air blocking plug II and an evaporator inlet air blocking plug; and the outer sides of the two connecting blocks are provided with a second air blowing pipe orifice which passes through the connecting blocks, the workpiece fixing seat clamp and the inner wall of the workpiece fixing seat IV.
8. The apparatus for testing the static superheat degree adjustment of a thermostatic expansion valve according to claim 7, wherein the 0-degree actuating module comprises an actuating translation cylinder arranged above the actuating cylinder seat, the actuating translation cylinder is connected through a translation cylinder fixing frame, the actuating translation cylinder drives a lifting cylinder fixing frame to perform translational movement, the lifting cylinder fixing frame is connected with an actuating lifting cylinder, and the actuating lifting cylinder controls an alternating current servo motor II with a speed reducer II to perform lifting movement.
9. The device for testing the static superheat degree adjustment of the thermal expansion valve according to claim 1, wherein the overturning blanking module comprises a base III, a rotary cylinder is fixed on the base III through a connecting column, and the rotary cylinder drives a finger cylinder II to rotate.
10. The thermal expansion valve static superheat adjustment test device according to claim 1, wherein said first and second manipulator transfer modules are identical in construction, said first manipulator transfer module comprising a four-axis manipulator which grips a workpiece via a finger cylinder three.
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| CN112756968B (en) * | 2021-01-04 | 2023-05-02 | 浙江中德自控科技股份有限公司 | Ball valve assembly equipment suitable for different specifications |
| CN117054073B (en) * | 2023-05-26 | 2024-04-05 | 北京市公用事业科学研究所有限公司 | Industrial valve pressure detection system |
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