CN114290053B - Automatic assembly system and assembly method for multi-way valve - Google Patents
Automatic assembly system and assembly method for multi-way valve Download PDFInfo
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- CN114290053B CN114290053B CN202111682148.4A CN202111682148A CN114290053B CN 114290053 B CN114290053 B CN 114290053B CN 202111682148 A CN202111682148 A CN 202111682148A CN 114290053 B CN114290053 B CN 114290053B
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Abstract
The invention relates to the field of automatic assembly, in particular to a multi-way valve automatic assembly system, which comprises a rotary table, wherein a valve core shaft feeding unit, an oil seal feeding unit and a sealing assembly feeding unit are sequentially arranged on the periphery of the rotary table; the rotary disc is sequentially provided with a feeding and discharging station, a first press-fitting station, a second press-fitting station, an oil seal oiling station, a valve element assembly and sealing assembly mounting station, a valve body buckling station and a NG discharging station on the peripheral outer edge; and the turntables are respectively provided with a field-shaped turnplate jig for the stations. A method of assembling a multi-way valve is also provided. This automatic assembly system of multi-way valve utilizes annular assembly line to make whole assembly line compacter for get the material, assemble and go on simultaneously, improved the assembly efficiency of corresponding process greatly, and guaranteed the qualification rate of multi-way valve, assembly accuracy is high, and the defective rate is low, has saved a large amount of cost of labor.
Description
Technical Field
The invention relates to the field of automatic assembly, in particular to a multi-way valve automatic assembly line.
Background
This scheme is directed at the assembly of a multiway valve, as shown in fig. 1, this multiway valve includes parts such as valve body, case, valve core axle, oil blanket, sealing component, valve gap, and the assembly is finished still needs to test the gas tightness of this multiway valve, and whole assembly process is because the part is little and the assembly is accurate always adopts the manual mode, but along with the promotion of market to this product demand, traditional production mode has not satisfied the production demand.
Disclosure of Invention
First, the technical problem to be solved
In view of the above-mentioned shortcomings and disadvantages of the prior art, the invention provides an automatic assembly system and an assembly method for a multi-way valve, which solve the technical problems of low efficiency, poor precision and high reject ratio of manually assembling the multi-way valve.
(II) technical scheme
In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps:
in a first aspect, an embodiment of the invention provides an automatic assembly system for a multi-way valve, which comprises a rotary table, wherein a valve core shaft feeding unit, an oil seal feeding unit and a sealing assembly feeding unit are sequentially arranged on the periphery of the rotary table;
the rotary table is sequentially provided with a feeding station, a discharging station, a first press-fitting station, a second press-fitting station, an oil seal oiling station, a valve core assembly, a sealing assembly mounting station and a valve body buckling station on the peripheral outer edge; the turntables are respectively provided with a field-shaped turnplate jig corresponding to the stations;
the feeding and discharging station is used for feeding the valve body, the valve core and the valve cover to be assembled onto the turntable and discharging the qualified multi-way valve after the assembly is completed;
the first press-fitting station is used for press-fitting a valve core shaft to a valve core from the feeding and discharging stations to obtain a valve core assembly; the first press-fitting station is arranged corresponding to the valve core shaft feeding unit, and the valve core shaft feeding unit feeds the valve core shaft to the first press-fitting station;
the second press-fitting station is used for press-fitting the oil seal to the valve body from the feeding and discharging stations to obtain a valve body assembly; the second press-fitting station is arranged corresponding to the oil seal feeding unit, and the oil seal feeding unit feeds oil seals to the second press-fitting station;
the oil seal oiling station is used for oiling the valve body assembly which is from the second press-fitting station and is subjected to oil seal press-fitting, and the valve body assembly is subjected to eccentric overturning oiling;
the valve core assembly and sealing assembly mounting station is used for assembling the sealing assembly from the sealing assembly feeding unit, and sequentially mounting the valve core assembly from the first press mounting station and the sealing assembly which is assembled to a valve cover positioned on the turntable jig to obtain a valve cover assembly;
the valve body buckling station is used for buckling a valve body assembly from the oil seal oiling station to a valve cover assembly positioned on the turntable jig so as to obtain the multi-way valve.
In a second aspect, an embodiment of the present invention provides an automatic assembly method for a multi-way valve, including the steps of:
s10, feeding a valve body, a valve core and a valve cover;
s20, turning the turntable to a first press-fitting station to assemble a valve core shaft and a valve core;
s30, turning the turntable to a second press-fitting station to assemble the oil seal and the valve body;
s40, turning the turntable to an oil seal oiling station to carry out oil seal oiling operation of the valve body assembly;
s50, the turntable is rotated to a valve core assembly and sealing assembly installation station, and the valve core assembly and the sealing assembly are installed on the valve cover;
s60, turning the turntable to a valve body buckling station to buckle and assemble the valve body assembly to the valve cover assembly;
s70, turning the turntable to an NG discharging station to discharge defective products;
s80, blanking the qualified multi-way valve after assembly.
(III) beneficial effects
The beneficial effects of the invention are as follows: the multi-way valve automatic assembly system realizes automation in the whole assembly process, makes the whole assembly line more compact by utilizing the annular assembly line, and combines auxiliary positioning devices such as the jig and the like to realize repeated positioning during each stop, so that the positioning precision is high. Meanwhile, the situation that the subsequent assembly is affected by the fact that the valve core assembly is not right in angle is avoided, and the assembly precision is improved.
The valve cover is restrained in all directions by utilizing the tool fixture and the auxiliary clamping structure, and the valve cover is beneficial to buckling of the valve body assembly.
According to the invention, the annular assembly line is arranged, so that material taking and assembly are performed simultaneously, and the assembly efficiency of corresponding procedures is greatly improved.
According to the invention, the detection device is utilized to detect the air tightness of each valve core assembly after assembling the valve core shaft, the valve body assembly after oil sealing and the finished product of the multi-way valve after buckling the valve body assembly, so that the qualification rate of the multi-way valve is ensured, the overall production efficiency is greatly improved, the assembly precision is high, the reject ratio is low, and a large amount of labor cost is saved.
Drawings
FIG. 1 is a schematic diagram illustrating the assembly and disassembly of a multi-way valve according to the present invention;
FIG. 2 is a schematic top view of the automated assembly system for a multi-way valve provided by the present invention;
FIG. 3 is a schematic perspective view of a turntable fixture of the automated assembly system for multi-way valves provided by the present invention;
fig. 4 is a schematic perspective view of a first press-fitting station of the automatic assembly system for the multi-way valve provided by the invention;
FIG. 5 is a schematic perspective view of a second press-fit station of the automated assembly system for multi-way valves provided by the present invention;
FIG. 6 is a schematic perspective view of an oiling station of the automated assembly system for a multi-way valve provided by the present invention;
FIG. 7 is a schematic perspective view of a spool assembly and seal assembly mounting station of the automated multi-way valve assembly system provided by the present invention;
fig. 8 is a schematic perspective view of a valve body fastening station of the automatic assembly system for the multi-way valve.
[ reference numerals description ]
1: a valve body; 2: a valve core; 3: a valve cover; 4: an oil seal; 5: a valve core shaft; 6: a seal ring; 7: a sealing block;
100: a turntable; 110: a turntable jig; 111: a valve body jig; 112: a valve core jig; 113: valve cover jig; 114: a standby jig;
120: a valve core shaft feeding unit; 130: an oil seal feeding unit; 140: a feeding and discharging station; 150: a first press-fitting station; 160: a second press-fitting station; 170: an oil seal oiling station; 180: a spool assembly and seal assembly mounting station; 190: a valve body buckling station; 200: a seal ring feeding unit; 210: a sealing block feeding unit; 220: a first NG discharge station; 230: a second NG discharge station;
151: a valve core transplanting mechanism; 152: the valve core shaft rotates and centers the organization; 153: the valve core shaft flat side positioning mechanism; 154: a valve core shaft carrying mechanism; 155: a valve core shaft pressing mechanism;
161: a valve body carrying mechanism; 162: an oil seal carrying mechanism; 163: an oil seal extending mechanism; 164: an oil seal pressing mechanism;
171: a rotary carrying mechanism; 172: an oiling mechanism;
181: a valve core assembly loading mechanism; 182: a seal assembly transplanter; 183: a seal assembly transfer mechanism; 184: a seal assembly mounting mechanism; 185: a rectangular transfer frame;
191: a valve body assembly handling mechanism; 192: a seal assembly securing mechanism; 193: and the valve core shaft fixing mechanism.
Detailed Description
The invention will be better explained by the following detailed description of the embodiments with reference to the drawings. Wherein references herein to "upper", "lower", "etc. are made with reference to the orientation of fig. 1.
Referring to fig. 1, fig. 1 illustrates the structure of a multi-way valve assembled by the automated multi-way valve assembly system of the present invention. The multi-way valve mainly comprises a valve body 1, a valve core 2 positioned inside the valve body 1 and a valve cover 3 positioned inside the valve body 1. Wherein, the bottom of the valve body 1 is pressed with an oil seal 4; sealing assemblies consisting of sealing rings 6 and sealing blocks 7 are respectively arranged around the valve core 2. In addition, a valve core shaft 5 is also press-fitted inside the valve core 2. The valve core shaft 5 is approximately cylindrical, and flat structures are arranged at the upper end and the lower end of the valve core shaft; similarly, in the valve core 2, corresponding flat structures are arranged at two ends corresponding to the press-mounting position of the valve core shaft 5, so that the valve core shaft can be driven to rotate better when rotating, and no unexpected relative movement is generated between the two structures. As described above, at present, the assembly of the multi-way valve is performed manually by assembling the above components to obtain a multi-way valve, which has low manual assembly efficiency, poor assembly accuracy and high reject ratio. In view of this, the embodiment of the invention provides an automatic assembly system for a multi-way valve, which comprises a turntable 100 capable of rotating clockwise and a turntable jig 110 fixedly arranged above the turntable, wherein a valve core shaft feeding unit 120, an oil seal feeding unit 130 and a sealing component feeding unit are sequentially arranged on the periphery of the turntable 100. The rotary disc 100 is provided with a feeding and discharging station 140, a first press-fitting station 150, a second press-fitting station 160, an oil seal oiling station 170, a valve core component and sealing component mounting station 180, a valve body buckling station 190 and a NG discharging station in sequence on the circumferential outer edge. The sealing assembly feeding unit comprises a sealing ring feeding unit 200 and a sealing block feeding unit 210; the NG discharge station is in turn divided into a first NG discharge station 220 and a second NG discharge station 230. In the present exemplary embodiment, the first NG discharge station 220 will discharge the defective product from the first press-fit station 150 and from the second press-fit station 160, and the second NG discharge station will discharge the defective product from the valve body snap-fit station 190. The valve core shaft feeding unit 120 is arranged corresponding to the first press-fitting station 150 so as to feed the valve core shaft 5 to the first press-fitting station 150; the oil seal feeding unit 130 is arranged corresponding to the second press-fitting station 160 so as to feed the oil seal 4 to the second press-fitting station 160; the seal ring feeding unit 200 and the seal block feeding unit 210 are provided corresponding to the spool assembly and seal assembly mounting station 180 to feed the seal ring 6 and the seal block 7 to the spool assembly and seal assembly mounting station 180, respectively.
When the automatic assembly system of the multi-way valve is started, the turntable 100 rotates clockwise, and the turntable jig 110 fixedly arranged above the turntable 100 sequentially passes through the stations, so that the valve body 1, the valve core 2 and the valve cover 3 arranged on the turntable jig 110 are assembled, and the qualified multi-way valve is obtained. Of course, those skilled in the art will understand that the turntable 100 may also rotate in the counterclockwise direction, and the corresponding arrangement order of the stations and the corresponding arrangement of the feeding units may be adjusted.
In this embodiment, the valve body 1, the valve core 2 and the valve cover 3 to be assembled may be manually placed on the turntable jig 110 at the feeding and discharging stations 140, and then the turntable 100 starts to rotate and sequentially passes through each station by manually opening the multi-way valve automatic assembly system provided in this embodiment. After a 360 degree turn, the assembled and inspected-acceptable multi-way valve will be fed from the feed and discharge station 140.
The turntable 100 rotates to drive the valve body 1, the valve core 2 and the valve cover 3 placed on the turntable jig 110 to first go to the first press-fitting station 150, where press-fitting of the valve core 2 and the valve core shaft 5 from the valve core shaft feeding unit 120 is completed, so as to obtain a valve core assembly. Before press fitting, the valve core 2 is transplanted from the turntable jig 110 to the station jig of the first press fitting station 150, and after the station jig completes press fitting of the valve core shaft, the valve core assembly is transplanted back into the turntable jig 110 to rotate to the next station along with the turntable 100.
The turntable 100 continues to rotate to a second press-fitting station 160, where the oil seal 4 from the oil seal feeding unit 130 is press-fitted with the valve body 1 to obtain a valve body assembly, and similarly, the valve body assembly is transferred from the turntable jig 110 to a station jig of the second press-fitting station 160 before press-fitting, and after press-fitting, the valve body assembly is returned to the turntable jig 110 to be rotated to the next station along with the turntable 100.
At the oil seal oiling station 170, the oil seal 4 of the valve body assembly is oiled, and the oiled valve body assembly is turned 180 degrees and then still placed on the turntable jig 110 and rotated to the next station along with the turntable 100.
Subsequently, two assembly steps are completed at the valve core assembly and seal assembly mounting station 180, namely assembly of the valve core assembly to the valve cover 3 and assembly of the seal assembly to the valve cover 3. The valve core assembly is assembled to the valve cover 3, specifically, the valve core assembly is placed in the valve cover 3 which is located in the turntable fixture 110 and rotates along with the turntable 100. The assembly of the sealing assembly to the valve cover 3, specifically, the sealing ring 6 and the sealing block 7 from the sealing ring feeding unit 200 and the sealing block feeding unit 210, respectively, are assembled into the sealing assembly, and are also placed at the corresponding positions of the valve cover 3 in the turntable jig 110. It should be noted that, the valve cover 3 is always located on the turntable fixture 110 during the whole assembly process, that is, after the valve cover 3 is fed to the turntable 100 at the feeding and discharging station 140, the position and/or the posture of the valve cover 3 do not need to be changed, so that the assembly precision and the assembly efficiency are ensured.
The turntable 100 then continues to rotate, at which point it is positioned on the bonnet 3 of the turntable fixture 110, completing the assembly of the valve core assembly and the seal assembly, to the valve body snap-in station 190. At this station, the valve body assembly, which is also located on the turntable jig 110, will be fastened to the valve cover 3, thereby completing the assembly of the multi-way valve to obtain a finished product.
At this time, the turntable 100 still rotates again, with the multi-way valve on the turntable fixture 110, or possibly the defective valve element assembly from the first press-fitting station 150, or the defective valve element assembly from the second press-fitting station 160, to the first NG discharge station 220, where the defective valve element assembly and the defective valve element assembly are discharged. The carousel 100 continues to rotate to the second NG discharge station 230 where defective multi-way valves from the valve body snap-in station 190 will be discharged. Of course, there may be no defective products, and the turntable 100 may be rotated to the feeding and blanking station 140 to perform blanking of the finished multi-way valve.
The defective product may be from the first press-fitting station 150, the second press-fitting station 160, or the valve body fastening station 190. In the above three stations, a defective product detection mechanism is provided, which may be a pressure sensor in the present exemplary embodiment. The pressure sensor detects the pressure of the assembled valve core assembly, the valve body assembly and the multi-way valve and feeds the pressure back to the controller, the controller compares the received pressure value with a set value, if the pressure value is not within the range of the set value, the controller judges the defective products and sends out instructions to the corresponding operating mechanism of the subsequent station, in the subsequent station, no operation is performed on the defective products, the defective products rotate along with the turntable 100 in the turntable jig 110, and the turntable 100 is rotated to the corresponding NG discharging station to be discharged.
In the process of completely rotating the turntable 100 for one circle, the valve cover 3 is always positioned in the turntable jig 110 after being fed to the turntable jig 110, and no change or adjustment is required to be made to the position or the posture of the valve cover 3, even if the valve core component and the sealing component are mounted on the valve cover 3 or finally the valve body component is buckled to the valve cover 3, the valve cover 3 is completed in the turntable jig 110. The advantage of this arrangement is that the assembly of the valve core assembly to the valve cover 3, and the assembly of the seal assembly to the valve cover 3, which are accomplished at the valve core assembly and seal assembly mounting station 180, are not in a fully secured condition on the valve cover 3, and are most likely to be dislodged from the valve cover 3 by a change in position of the valve cover 3. The valve cover 3 is always kept in the turntable jig 110 in the whole assembly process of the multi-way valve, on one hand, the assembly position of the valve cover 3 can be ensured to be accurate and fixed, and on the other hand, the valve core component and the sealing component assembled to the valve cover 3 cannot be undesirably dropped, so that the assembly efficiency of the multi-way valve is affected, and defective products are caused.
The automatic assembly system of the multi-way valve, provided by the embodiment, is automatically operated in the whole assembly process, so that the automation of the assembly of the multi-way valve is realized, the assembly efficiency is high, and the reject ratio is low. The whole assembly line is more compact by utilizing the annular assembly line; and the feeding, the discharging and the assembling are performed simultaneously, so that the assembling efficiency of corresponding working procedures is greatly improved.
The specific assembly operation of each of the above stations will be described in detail.
As described above, 8 stations are provided at equal intervals along the circumferential outer edge of the turntable 100, and the turntable jig 110 is fixedly provided for each station. In the present embodiment, the turntable jig 110 includes a valve body jig 111, a valve core jig 112, and a valve cover jig 113, which respectively place the valve body 1, the valve core 2, and the valve cover 3, and one standby jig 114; the valve body jig 111, the valve core jig 112, the valve cover jig 113 and the standby jig 114 form a field-shaped turntable jig 110, wherein the valve body jig 111 and the standby jig 114 are adjacently arranged left and right, and a valve body assembly oiled by the oil seal oiling station 170 is eccentrically turned 180 degrees from a state placed in the valve body jig 111 and then placed in the standby jig 114, so as to prepare for the valve body assembly to be buckled on the valve cover assembly. This will be explained in detail below. The turntable 100 is supported by a table below it.
Feeding and blanking station 140
At the loading and unloading station 140, an operator places the valve body 1, the valve core 2 and the valve cover 3 to be assembled on the turntable jig 110 on the station, and correspondingly places the valve body jig 111, the valve core jig 112 and the valve cover jig 113 of the turntable jig 110 respectively. Taking the direction shown in fig. 1 as an example, the valve body 1 is placed on the valve body jig 111 in an inverted state at this time. In the embodiment, the arrangement of all the jigs is beneficial to the accurate positioning of the valve body 1, the valve core 2 and the valve cover 3, and is convenient for assembly operation. The feeding and discharging station 140 is provided with an in-place sensor, which can detect whether the corresponding jig has a corresponding structure to be assembled and the placement position is correct, if the jig is empty or the corresponding structure to be assembled is not placed correctly, the multi-way valve automatic assembly system provided in this embodiment cannot start the assembly work. After the operator finishes loading, the multi-way valve automatic assembly system is started, and in this embodiment, the turntable 100 starts to rotate clockwise.
First press-fitting station 150
The first press-fitting station 150 is used for press-fitting the valve spool 2 and the valve spool shaft 5, and is provided adjacent to the loading and unloading station 140 and the second press-fitting station 160, respectively, on the turntable 100. And corresponding to the first press-fitting station 150, a spool shaft feeding unit 120 is disposed on the outer side of the circumference of the turntable 100, and the spool shaft in a horizontal state is fed to the first press-fitting station 150 by the spool shaft feeding unit 120. As shown in fig. 1, the valve core shaft 5 is press-fitted into the valve core 2 in a vertical state, the valve core shaft 5 is cylindrical as a whole, flat openings are respectively provided at two ends of the valve core shaft 5, and a corresponding flat opening structure is provided in the valve core 2 corresponding to the flat openings, so that when the valve core shaft 5 rotates in the valve core 2, the valve core shaft is ensured to rotate to drive the valve core to rotate better, and relative slip is avoided
The first press-fitting station 150 is provided with a spool transplanting mechanism 151, a spool shaft rotation centering mechanism 152, a spool shaft flat side positioning mechanism 153, a spool shaft carrying mechanism 154, and a spool shaft pressing mechanism 155.
After the valve core 2 fed in the feeding and discharging station 140 rotates to the first press-fitting station 150 along with the turntable 100 in the turntable jig 110, the valve core transplanting mechanism 151 is used for transplanting the valve core 2 from the turntable jig 110 to the station jig of the first press-fitting station 150, and after the valve core shaft 5 is press-fitted to the valve core 2 to form a valve core assembly, the valve core assembly is transplanted back to the turntable jig 110 again.
The valve core shaft 5 in the horizontal state is fed to the first press-fitting station 150 by the valve core shaft feeding unit 120, the valve core shaft carrying mechanism 154 sends the valve core shaft 5 to the valve core shaft rotation correcting mechanism 152, and after the valve core shaft 5 in the horizontal state enters the valve core shaft rotation correcting mechanism 152, the valve core shaft 5 is driven to rotate by the valve core shaft rotation correcting mechanism 152, so that the valve core shaft 5 is rotated from the horizontal state to the vertical state; the valve core shaft 5 in the vertical state is then delivered to the valve core shaft flat side positioning mechanism 153, and the valve core shaft flat side positioning mechanism 153 aligns the position of the valve core shaft 5 in the vertical state, so that the flat position of the end part of the valve core shaft 5 corresponds to the flat position structure inside the valve core 2 to be assembled, and the valve core shaft 5 is conveniently pressed into the valve core 2. Specifically, the flat side positioning mechanism 153 of the valve core shaft is driven by a rotating motor at the bottom of the flat side positioning mechanism 153 of the valve core shaft so as to drive the valve core shaft 5 to rotate around the axis of the flat side positioning mechanism 153 of the valve core shaft, and in the process, a position sensor arranged on the flat side positioning mechanism 153 of the valve core shaft can detect in real time until the valve core shaft 5 rotates in place.
Then, the spool shaft pressing mechanism 155 descends to grasp the spool shaft 5 and ascend back, and after all mechanisms which are located below the spool shaft pressing mechanism 155 and possibly affect the pressing of the spool shaft 5 to the spool 2 retract at this time, the spool shaft pressing mechanism 155 drives the spool shaft 5 to descend to the spool 2 again and press-fit in place, so that the assembly of the spool assembly is completed.
The pressure head of the spool shaft pressing mechanism 155 is provided with a pressure sensor to detect the pressure of the spool assembly obtained after the spool shaft 5 is pressed, and the detected value is fed back to a controller (not shown), and the controller determines whether the detected value is within a set value range, and if not, determines that the detected value is defective, and discharges the detected value from the subsequent NG discharge station.
After the detection is completed, the valve core transplanting mechanism 151 transplanting the valve core assembly to the rotary disc jig 110 from the station jig, and the rotary disc 100 rotates one station again.
If the valve core assembly is determined to be defective, after the valve core assembly is transplanted to the rotary disc jig 110 by the valve core transplanting mechanism 151, the defective valve core assembly only moves along with the turntable 100 to the NG discharging station to be discharged, and besides, the multi-way valve automatic assembly system of the embodiment does not perform any subsequent assembly operation on the defective.
Second press-fitting station 160
The second press-fitting station 160 is used for press-fitting the valve body 1 and the oil seal 4 to obtain a valve body assembly. An oil seal feeding unit 130 is disposed on the outer side of the turntable 100 in the circumferential direction corresponding to the second press-fitting station 160.
The second press-fitting station 160 is provided with a valve body handling mechanism 161, an oil seal handling mechanism 162, an oil seal extending mechanism 163, and an oil seal pressing mechanism 164.
Taking the direction shown in fig. 1 as an example, the valve body 1 to be pressed is inverted on the turntable jig 110, the valve body handling mechanism 161 carries the valve body 1 to be pressed from the turntable jig 110 to the station jig on the second press-fitting station 160 in a manner that the posture of the valve body 1 is not changed, the oil seal 5 is pressed down into the valve body 1 from the upper portion of the valve body 1, and after the press-fitting is completed to obtain the valve body assembly, the valve body handling mechanism 161 carries the valve body assembly again from the station jig of the second press-fitting station 160 in a manner that the posture of the valve body assembly is not changed, and the turntable jig 110 is carried again.
Specifically, the oil seal feeding unit 130 feeds the oil seal 4 to a designated position, which in this embodiment can be understood as a place where the oil seal is temporarily stored on the second press-fitting station 160; then, the oil seal carrying mechanism 162 carries the oil seal 4 to the oil seal extending mechanism 163, the oil seal extending mechanism 163 grabs the oil seal 4 and extends the oil seal 4 to the lower side of the oil seal pressing mechanism 164, the oil seal pressing mechanism 164 descends to string the oil seal 4 and then lifts the string oil seal 4, so that the oil seal extending mechanism 163 is retracted to the initial position, and then the oil seal pressing mechanism 164 descends again with the oil seal 4 and is pressed into the valve body 1 below the oil seal 4 to be pressed and on the station jig, and a valve body assembly is obtained.
Similarly, a pressure sensor is disposed on the pressure head of the oil seal pressing mechanism 164, the valve body assembly obtained after the oil seal is pressed is subjected to pressure detection, the detected value is fed back to a controller (not shown), the controller determines whether the detected value is within a set value range, if not, the detected value is also determined to be defective, after the rotary disc jig 110 is transplanted, the detected value is only rotated along with the rotary disc 100 to a subsequent NG discharge station to be discharged, and no subsequent assembly operation is performed. If the valve body assembly is qualified, the valve body assembly is transplanted to the rotary disc jig 110 and then is transferred to the next station along with the rotary disc 100 for subsequent assembly operation.
Oil seal oiling station 170
The oil seal oiling station 170 is used for oil seal oiling of the valve body 1 from the second press-fitting station 160, which has been completed with oil seal press-fitting. The station is provided with a rotary carrying mechanism 171 and an oiling mechanism 172.
After the valve body component leaves the second press-fitting station 160, the valve body component rotates on the turntable jig 110 along with the turntable 100 to an oil seal oiling station 170, the rotary carrying mechanism 171 grabs the valve body component on the turntable jig 110, and the rotary carrying mechanism 171 rotates to translate the valve body component to a station jig of the oiling mechanism 172; the station jig of the oiling mechanism 172 is driven by a rotating motor to rotate at least 360 degrees and can rotate 720 degrees according to the requirement, so that the valve body assembly placed on the station jig rotates at least one circle relative to the spray head above the valve body assembly, and oil seal oiling is completed. The rotary handling mechanism 171 again grabs the oiled valve body assembly and turns the valve body assembly 180 degrees, placing the valve body assembly in the standby jig 114 on the turntable jig 110 in the direction shown in fig. 1. That is, the valve body 1 or the valve body assembly is placed on the valve body jig 111 of the turntable jig 110 in a posture opposite to the valve body direction shown in fig. 1 when it is on the turntable jig 110 before the oiling operation is performed; after the oiling operation is completed, the valve body assembly is turned 180 degrees, and then placed on the standby jig 114 adjacent to the valve body jig 111 in the left-right direction in the valve body direction shown in fig. 1, and then rotated with the turntable 100 to the next station.
Valve element assembly and seal assembly mounting station 180
At the valve core assembly and seal assembly mounting station 180, the seal assembly from the seal assembly loading unit is assembled first, and the valve core assembly from the first press-fitting station 150 and the assembled seal assembly are mounted to the valve cover 3 on the turntable jig 110 from the loading and unloading station in sequence to obtain a valve cover assembly.
Corresponding to this station, a seal assembly feeding unit is provided on the axially outer side of the turntable 100, and includes a seal ring feeding unit 200 and a seal block feeding unit 210, that is, the seal ring 6 and the seal block 7 are respectively and individually fed to the valve core assembly and the seal assembly mounting station 180, and in the feeding process, the seal ring 6 and the seal block 7 are horizontally placed.
In addition, a spool assembly loading mechanism 181, a seal assembly transplanting mechanism 182, a seal assembly relay mechanism 183, a seal assembly mounting mechanism 184, and a rectangular relay frame 185 are provided at the spool assembly and seal assembly mounting station 180.
At this time, the valve core assembly and the valve cap 3 rotated with the turntable 100 are respectively located on the valve core jig 112 and the valve cap jig 113 of the turntable jig 110. The valve core assembly loading mechanism 181 grabs and places the valve core assembly on the valve core jig 112 in the valve cover 3 on the valve cover jig 113. Meanwhile, the seal assembly transplanting mechanism 182 can grasp the seal ring 6 and the seal block 7 respectively and assemble the seal ring and the seal block, and then place the seal assembly transplanting mechanism in the seal assembly transferring mechanism 183 after the assembly is completed, and the assembled seal assembly is still in a horizontal state at this time. The sealing assembly transferring mechanism 183 is also provided with a rotary clamping cylinder which can turn the sealing assembly in a horizontal state by 90 degrees so that the sealing assembly is in a vertical state as shown in fig. 1, then place it to one side of the rectangular transfer frame 185 in the left-right direction, then grasp the next assembled sealing assembly, turn over, place it to the other side of the rectangular transfer frame 185 in the left-right direction, which has now completed 180 degrees of rotation in the horizontal plane. Subsequently, the seal assembly mounting mechanism 184 grips the pair of seal assemblies and places them on both sides in the left-right direction of the valve cover 3 on the valve cover jig 113. After the seal assembly mounting mechanism 184 grips a pair of seal assemblies in the left-right direction of the rectangular transfer frame 185, the rectangular transfer frame 185 has completed transfer placement of a second set of seal assemblies, at which time the seal assembly mounting mechanism 184 grips the second set of seal assemblies again and rotates it horizontally by 90 degrees, and then places the second set of seal assemblies on the front and rear sides of the valve cover 1, thereby completing placement of seal assemblies on the four sides of the valve cover 3 as shown in fig. 1.
After the above-mentioned valve core assembly is placed and the sealing assembly is placed, the valve cover 3 will still rotate to the next station along with the turntable 100 in the valve cover jig 113. It should be noted that, during the above operation, the valve cover 3 does not change its position or posture throughout, so as to ensure accurate positioning and efficient performance of all assembly processes.
Valve body buckling station 190
The valve body fastening station 190 is used for fastening the valve body assembly obtained through the second press-fitting station 160 to the valve cover 3 obtained through the valve core assembly and sealing assembly mounting station 180, so as to obtain a finished multi-way valve.
The valve body buckling station 190 is provided with a valve body assembly carrying mechanism 191, a sealing assembly fixing mechanism 192 and a valve core shaft fixing mechanism 193; the valve body assembly carrying mechanism 191 carries the valve body assembly to above the valve cover and descends to fasten the valve body assembly to the valve cover 3; before the lowering process starts, firstly, the valve core shaft fixing mechanism 193 fixed on the turntable 100 will fix the valve core shaft 5 at the correct position, specifically, the sealing component fixing mechanism 192 extends out from the left, right, front and back directions of the valve cover 3 to temporarily fix the sealing component, and then drives the clamping jaw to extend out through an extending cylinder to clamp the valve core shaft 5 in the valve core component inside the valve cover 3, so as to correct the pose, and ensure that the valve core shaft 5 is in a vertical state, so that the valve body component can be smoothly buckled. After the pose correction is completed, the clamping jaw is retracted away from the valve core shaft 5 along with the extension cylinder, and the sealing assembly is still fixed on the valve cover 3 by the sealing assembly fixing mechanism 192. The seal assembly fixing mechanism 191 applies forces to the inside of the valve cover 3 in the radial direction of the valve cover 3 from the outside of the valve cover 3, respectively, in the horizontal direction to hold the seal assembly in its corresponding position.
When the valve body assembly starts to descend with the valve body assembly handling mechanism 191 to be engaged, the spool shaft fixing mechanism 193 that fixes the spool shaft 5 is withdrawn in advance while the seal assembly fixing mechanism 192 remains fixed to the seal assembly.
When the valve body assembly is lowered to half the height of the sealing assembly, i.e. the lower end of the valve body assembly already covers about half of the sealing assembly, the sealing assembly fixing mechanism 192 is retracted at this time, so that the valve body assembly can be continuously lowered and buckled in place, and the assembly of the multi-way valve is completed.
The valve body assembly conveying mechanism 191 for driving the valve body assembly to descend and buckling to the valve cover 3 is provided with a pressure sensor on a pressure head thereof so as to detect the pressure of the finished multi-way valve after buckling the valve body assembly, and feeds back the detected value to the controller, and the controller judges whether the detected value is within a set value range or not, and if the detected value is not within the set value range, the detected value is judged to be a defective product and is discharged from a subsequent NG discharging station.
NG discharging station
The NG discharge station is used to discharge off-spec spool assemblies from the first press-fit station 150, off-spec valve body assemblies from the second press-fit station 160, and off-spec multi-way valves from the valve body snap-fit station 190; the above-described reject valve cartridge assembly, valve body assembly, and multi-way valve may be collectively referred to as reject.
The NG discharge stations include a first NG discharge station 220 and a second NG discharge station 230 disposed in sequence along the circumferential outer edge of the turntable 100. Wherein the first NG discharge station is disposed adjacent to the valve body snap-in station 190 for discharging the failed valve cartridge assembly and the failed valve body assembly. The second NG discharge station is used to discharge the reject multiport valve.
After the second NG discharging station 230, the turntable 100 continues to rotate to the feeding and discharging station 140 to complete one turn of rotation and one set of assembly process, and at this time, the multi-way valve still placed on the valve cover jig 113 of the turntable jig 110 is a qualified product, and the operator takes the multi-way valve off from the feeding and discharging station 140 and places the valve body 1, the valve core 2 and the valve cover 3 to be assembled in the next round, so as to start the automatic assembly of a new round.
This automatic assembly system of multiway valve, whole assembly process has realized automaticly, utilize annular assembly line to make whole assembly line compacter, and material loading and unloading station 140 are provided with the sensor that targets in place, from the initial valve body 1 that just treats the assembly, case 2 and valve gap 3 go on the detection that targets in place, and through setting up station tool, valve gap tool etc. can ensure valve body 1, case 2 and valve gap 3 in its correct position of treating the assembly, need not before each process in the repeated adjustment position, assembly accuracy has assurance and assembly efficiency is high. And, set up detection device and carried out the gas tightness to the valve core subassembly behind every assembly valve core axle, the valve body subassembly behind the oil blanket and the multiport valve finished product behind the valve body lock and detected, guaranteed the qualification rate of multiport valve, effectively reduced the defective rate, and saved a large amount of cost of labor.
In order to better understand the above technical solution, the workflow of the above multi-way valve automatic assembly system will be described in detail with reference to the accompanying drawings. It should be understood that the examples set forth herein are not intended to be limiting. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The multi-way valve automatic assembly method provided by the embodiment comprises the following steps:
s10, feeding a valve body, a valve core and a valve cover;
s20, turning the turntable 100 to a first press-fitting station 150, and press-fitting the valve core shaft 5 and the valve core 2 to obtain a valve core assembly;
s30, turning the turntable 100 to a second press-fitting station 160, and press-fitting the oil seal 4 and the valve body 1 to obtain a valve body assembly;
s40, turning the turntable 100 to an oil seal oiling station 170 to perform oil seal oiling operation of the valve body assembly;
s50, turning the turntable 100 to a valve core assembly and sealing assembly installation station 180, and assembling the valve core assembly to the valve cover 3 and the sealing assembly to the valve cover 3;
s60, turning the turntable 100 to a valve body buckling station 190 to buckle and assemble the valve body assembly to the valve cover 3, so as to obtain a finished product of the multi-way valve;
s70, turning the turntable 100 to an NG discharging station, and discharging unqualified valve core components, valve body components and finished products of the multi-way valve;
s80, blanking the qualified multi-way valve after assembly.
Wherein, after the step S20, the method further comprises the steps of
S21, detecting the pressure of a valve core assembly after the valve core shaft is assembled, judging that the valve core assembly is unqualified when the force is detected to be abnormal, and transplanting the valve core assembly back to the turntable 100, and then not performing subsequent assembly operation;
after the step S30, the method further comprises the steps of
S31, detecting the pressure of the valve body assembly after oil seal press mounting, judging that the valve body assembly is unqualified when abnormal force is detected, and transplanting the valve body assembly back to the turntable 100 without subsequent assembly operation;
after the step S60, the method further comprises the steps of
And S61, detecting the pressure of the finished product of the multi-way valve, and judging that the finished product of the multi-way valve is unqualified when the force abnormality is detected.
The multi-way valve automatic assembly method provided by the embodiment realizes automation in the whole assembly process and greatly improves the assembly efficiency of corresponding procedures. The valve core after each valve core shaft is assembled, the valve body assembly after the oil seal and the multi-way valve after the valve cover assembly are buckled are subjected to air tightness detection by the pressure detection device, so that the qualification rate of the multi-way valve is guaranteed, the overall production efficiency is greatly improved, the assembly precision is high, the reject ratio is low, and a large amount of labor cost is saved.
Specifically, the automatic assembly method comprises the following operation flow:
and manually loading the valve body, the valve core and the valve cover into a turntable jig, detecting whether the corresponding valve body, the valve core and the valve cover are in place or not by an in-place sensor, pressing a start button, moving the turntable to a first press-mounting station, carrying the valve core to the first press-mounting station, and finishing press-mounting of the valve core shaft to the valve core at the first press-mounting station to obtain a valve core assembly. And in the second press-fitting station, the valve body is conveyed to the second press-fitting station, and press-fitting of the oil seal is completed, so that a valve body assembly is obtained. Then the turntable rotates to an oil seal oiling station with the valve core assembly, the valve body assembly and the valve cover, and after oiling of the oil seal of the valve body assembly is completed at the station, the valve body assembly is eccentrically turned 180 degrees to be placed on a standby jig in the turntable jig so as to facilitate the subsequent buckling of the valve body assembly to the valve cover. The rotary table rotates to a valve core assembly and sealing assembly installation station, wherein sealing rings and sealing blocks respectively fed to the station are assembled into a sealing assembly; meanwhile, the valve core assembly is installed inside the valve cover positioned on the turntable jig, then the assembled sealing assembly is divided into two times, and the sealing assembly is installed on the left side, the right side, the front side and the back side of the valve cover in the circumferential direction in a mode of installing a pair of sealing assemblies each time, so that the valve cover assembly is obtained. At this moment, the turntable rotates to the valve body buckling station again, the valve body assembly is buckled to the valve cover assembly from the upper part of the valve cover assembly, the sealing assembly is fixed in the buckling process, when the valve body assembly is buckled to the half-height part of the sealing assembly on the valve cover assembly, the sealing assembly fixing mechanism for fixing the sealing assembly is retracted, and the valve body assembly continuously descends until the buckling is completed, so that a final finished multi-way valve product is obtained.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the invention.
Claims (10)
1. The automatic assembly system for the multi-way valve comprises a rotary table, and is characterized in that a valve core shaft feeding unit, an oil seal feeding unit and a sealing assembly feeding unit are sequentially arranged on the periphery of the rotary table;
the rotary table is sequentially provided with a feeding station, a discharging station, a first press-fitting station, a second press-fitting station, an oil seal oiling station, a valve core assembly, a sealing assembly mounting station and a valve body buckling station on the peripheral outer edge; the turnplate is provided with a field-shaped turnplate jig corresponding to each station respectively;
the feeding and discharging station is used for feeding the valve body, the valve core and the valve cover to be assembled to the station turntable jig on the turntable and discharging the qualified multi-way valve after the assembly is completed;
the first press-fitting station is used for press-fitting a valve core shaft to a valve core from the feeding and discharging stations to obtain a valve core assembly; the first press-fitting station is arranged corresponding to the valve core shaft feeding unit, and the valve core shaft feeding unit feeds the valve core shaft to the first press-fitting station;
the second press-fitting station is used for press-fitting the oil seal to the valve body from the feeding and discharging stations to obtain a valve body assembly; the second press-fitting station is arranged corresponding to the oil seal feeding unit, and the oil seal feeding unit feeds oil seals to the second press-fitting station;
the oil seal oiling station is used for oiling the valve body assembly which is from the second press-fitting station and is subjected to oil seal press-fitting, and the valve body assembly is subjected to eccentric overturning oiling;
the valve core assembly and sealing assembly mounting station is used for assembling the sealing assembly from the sealing assembly feeding unit, and sequentially mounting the valve core assembly from the first press mounting station and the sealing assembly which is assembled to a valve cover on the station turntable jig to obtain a valve cover assembly;
the valve body buckling station is used for buckling a valve body assembly from the oil seal oiling station to a valve cover assembly positioned on the station turntable jig so as to obtain the multi-way valve;
and an NG discharging station is arranged between the valve body buckling station and the feeding and discharging stations.
2. The automated multi-way valve assembly system of claim 1, wherein,
the first press-mounting station is provided with a valve core transplanting mechanism, a valve core shaft rotation correcting mechanism, a valve core shaft flat side positioning mechanism and a valve core shaft pressing mechanism;
the valve core transplanting mechanism is used for transplanting the valve core from the station turntable jig to the first press-mounting station and moving the pressed valve core assembly back to the station turntable jig;
the valve core shaft rotation and centering mechanism is used for rotating a valve core shaft in a horizontal state fed by the valve core shaft feeding unit to a vertical state;
the valve core shaft flat side positioning mechanism is used for enabling the valve core shaft in a vertical state to rotate around the axis of the valve core shaft so as to enable the flat position of the valve core shaft to be aligned with the flat position of the valve core to be pressed;
the valve core shaft pressing mechanism is used for pressing the aligned valve core shaft to the valve core to obtain the valve core assembly.
3. The automated multi-way valve assembly system of claim 1, wherein,
the second press-fitting station is provided with a valve body carrying mechanism, an oil seal extending mechanism and an oil seal compressing mechanism;
the valve body conveying mechanism is used for conveying the valve body to be pressed with the oil seal from the station turntable jig to the second press-fitting station and conveying the valve body assembly pressed with the oil seal from the second press-fitting station back to the station turntable jig;
the oil seal extending mechanism is used for extending the oil seal to the lower part of the oil seal compressing mechanism,
the oil seal pressing mechanism is used for stringing the oil seal, lifting the stringed oil seal and pressing the lifted oil seal down to the valve body to be oil sealed to obtain a valve body assembly.
4. The automated multi-way valve assembly system of claim 1, wherein,
the field-shaped turntable jig comprises a valve body jig, a valve core jig, a valve cover jig and a standby jig; the valve body jig and the standby jig are adjacently arranged left and right; the standby jig is used for placing the valve body assembly after eccentric overturning, and the valve body assembly is the valve body assembly after oil coating is completed at the oil seal oil coating station.
5. The automated multi-way valve assembly system of claim 1, wherein,
the sealing assembly comprises a sealing block and a sealing ring;
the valve core assembly and sealing assembly mounting station is provided with a valve core assembly loading mechanism, a sealing assembly transplanting mechanism, a sealing assembly transferring mechanism, a sealing assembly mounting mechanism and a rectangular transferring frame;
the valve element assembly loading mechanism is used for installing the valve element assembly into a valve cover of the station turntable jig;
the sealing assembly transplanting mechanism is used for grabbing and assembling the sealing ring and the sealing block, and placing the sealing ring and the sealing block in the sealing assembly transferring mechanism after the sealing assembly transplanting mechanism is assembled;
the seal assembly transfer mechanism is used for turning the seal assembly by 90 degrees to enable the seal assembly to be in a vertical state, and then placing the seal assembly on the opposite sides of the rectangular middle rotating frame in the left-right direction;
the sealing component mounting mechanism is used for placing the sealing component placed on the rectangular transfer frame on the valve cover to obtain a valve cover component.
6. The automated multi-way valve assembly system of claim 1, wherein,
the valve body buckling station is provided with a valve body carrying mechanism and a sealing component fixing mechanism;
the valve body conveying mechanism is used for conveying the valve body assembly to the upper part of the valve cover assembly and downwards buckling the valve cover assembly;
the seal assembly fixing mechanism extends out from the left and right directions and the front and rear directions of the valve cover assembly to fix the seal assembly during the descending process of the valve body assembly.
7. The automated multi-way valve assembly system of claim 1, wherein,
the NG discharging station comprises a first NG discharging station and a second NG discharging station which are sequentially arranged;
the first NG discharging station is used for discharging the unqualified valve core assembly from the first press-fitting station and the unqualified valve cover assembly from the second press-fitting station;
the second NG discharging station is used for discharging unqualified multi-way valves from the valve body buckling station;
the failure is determined to be a failure when the pressure sensor detects a force abnormality.
8. The automated multi-way valve assembly system of claim 1, wherein,
still include the workstation, the carousel set up in the workstation top.
9. The method of assembling a multi-way valve automated assembly system of any one of claims 1-8, comprising the steps of:
s10, feeding a valve body, a valve core and a valve cover;
s20, turning the turntable to a first press-fitting station to assemble a valve core shaft and a valve core;
s30, turning the turntable to a second press-fitting station to assemble the oil seal and the valve body;
s40, turning the turntable to an oil seal oiling station to carry out oil seal oiling operation of the valve body assembly;
s50, the turntable is rotated to a valve core assembly and sealing assembly installation station, and the valve core assembly and the sealing assembly are installed on the valve cover;
s60, turning the turntable to a valve body buckling station for buckling and assembling the valve body assembly to the valve cover assembly so as to obtain the multi-way valve;
s70, turning the turntable to an NG discharging station to discharge defective products;
s80, blanking the qualified multi-way valve after assembly.
10. The method of assembly of claim 9, wherein:
after the step S20, the method further comprises the steps of
S21, detecting the pressure of a valve core assembly after the valve core shaft is assembled, and judging that the valve core assembly is unqualified when the force abnormality is detected;
after the step S30, the method further comprises the steps of
S31, detecting the pressure of the valve body assembly after oil sealing, and judging that the valve body assembly is unqualified when the force abnormality is detected;
after the step S60, the method further comprises the steps of
And S61, detecting the pressure of the buckled multi-way valve, and judging that the multi-way valve is unqualified when the force abnormality is detected.
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| CN116967727A (en) * | 2023-07-28 | 2023-10-31 | 浙江金麦特自动化***有限公司 | Automatic assembly system of PCU accessory |
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