Stopcock assembly line

Abstract

The application discloses a cock valve assembly line, which comprises a bearing tray for placing components of a cock valve to be assembled, a first lifting mechanism for lifting the bearing tray, a first conveying belt for the bearing tray, a liftable workstation seat for bearing a worker and adjusting the height of the seat through electric control, a second lifting mechanism for lowering the bearing tray and the assembled cock valve, a storage module for storing at least the height information of the worker, and a general control module for inputting the height information of the worker into the storage module, configuring the assembly process of each workstation and the personnel information of the corresponding workstation, and adjusting the height of the workstation seat through electric control after obtaining the height information of the worker in the storage module; the bearing tray is provided with a rotating tray and a positioning assembly arranged on the rotating tray and used for positioning each component to be assembled. The scheme can improve the production efficiency of the cock valve and reduce the influence on the health of the worker.

Description

TECHNICAL FIELD

[0001] The present application relates to valve assembly, in particular, the faucet valve assembly assembly line. BACKGROUND

[0002] At present, the production of faucet valve relies on the whole process of manual installation, and the workers complete the whole installation process of faucet valve at the work station, which requires workers to constantly adjust their posture to adapt to the current installation process position, and workers need to bend over, stand and walk frequently, which not only reduces the installation efficiency but also affects the health of workers. Therefore, a production line and work station structure capable of improving the production efficiency of faucet valve is needed, which can also reduce the impact on the health of workers. SUMMARY

[0003] In view of the deficiencies in the prior art, the purpose of the present application is to provide a faucet valve assembly line which can improve the production efficiency of faucet valve and reduce the impact on the health of workers.

[0004] To achieve the above purpose, the present application provides the following technical scheme: a faucet valve assembly line, comprising

[0005] A bearing tray for placing the components to be assembled of the faucet valve;

[0006] A first lifting mechanism for lifting the bearing tray;

[0007] A first conveying belt for the bearing tray;

[0008] A liftable work station seat for bearing the workers, and the seat height is adjusted by electric control;

[0009] A second lifting mechanism for lowering the bearing tray and the assembled faucet valve;

[0010] A storage module for storing at least the height information of the workers;

[0011] A general control module for inputting the height information of the workers, configuring the assembly process of each work station and the personnel information of the corresponding work station into the storage module, and adjusting the height of the work station seat by electric control after obtaining the height information of the workers in the storage module;

[0012] The bearing tray is provided with a rotating tray and a positioning assembly arranged on the rotating tray for positioning each component to be assembled.

[0013] As a further improvement of the present application, the rotating tray is provided with a positioning mechanism for fixing the valve body; the positioning mechanism comprises at least three screw rod transmission mechanisms, and a chuck mounted on the screw rod transmission mechanism, the screw rod transmission mechanism drives the chuck to approach or move away from the valve body, and when the three chucks abut and clamp the valve body, the valve body is fixed.

[0014] As a further improvement of the present application, the lead screw transmission mechanism comprises a lead screw, a hand wheel, and a sliding seat; the hand wheel is connected with the lead screw, and drives the lead screw to rotate; the sliding seat is threadedly connected with the lead screw, and is driven by the lead screw to reciprocate along the length direction of the lead screw; the bottom of the chuck is provided with a connecting piece which is rotatably connected to the sliding seat, and automatically rotates and abuts against the valve body when the chuck abuts against the valve body; the three chucks are cooperatively clamped by automatic rotation.

[0015] As a further improvement of the present application, the connecting piece is axially fixed and circumferentially rotatable with the sliding seat, the side surface of the connecting piece is provided with a dovetail groove which extends to the upper end surface of the connecting piece on one side corresponding to the upper end surface of the connecting piece, and is in communication with the upper end surface of the connecting piece; the chuck is provided with a dovetail block for plug-in connection with the dovetail groove, and is inserted into and connected to the connecting piece by the dovetail groove part of the upper end surface of the connecting piece.

[0016] As a further improvement of the present application, the side surface of the chuck corresponding to the valve body is an arc surface, and the arc surface is used to adapt to the rotation of the valve body and abut against the rotating surface.

[0017] As a further improvement of the present application, it further comprises a stepping button or a trigger button arranged corresponding to each liftable workstation seat, which is used for the staff to step and trigger a preliminary signal, when all the stepping buttons or trigger buttons are in the triggered state, the first conveying belt and the second conveying belt perform a conveying action and convey the current workstation carrying tray to the next workstation.

[0018] As a further improvement of the present application, the general control module also receives the preliminary signal triggered by each stepping button or trigger button, and records the corresponding workstation and the preliminary signal duration through the storage module, which is used to adjust the assembly process content of each workstation or adjust the corresponding workstation personnel information according to the preliminary signal.

[0019] As a further improvement of the present application, the total control module further presets the standby signal waiting time length information and the timeout number of each station, when the waiting time length information of the corresponding station times out after the total control module acquires the standby signal, the waiting time length of the station is too long, when the number of timeouts exceeds the preset timeout number, the assembly process of other stations is decomposed or the staff information corresponding to the station is redistributed to optimize the assembly process and the personnel information corresponding to the station. The beneficial effects of the present application are: by setting the waiting-to-be-assembled components of the carrier tray placed in the stopcock valve, cooperating with the first lifting mechanism, the first conveying belt and the second lifting mechanism to realize the conveying and lifting of the carrier tray, manual carrying is not needed, and the conveying efficiency is improved; the total control module electrically controls the height of the station seat according to the height information of the staff in the storage module, so that the staff can adapt to the assembly position without frequent adjustment of posture, and the actions such as bending and standing are reduced, and the influence on health is reduced; the rotating tray and the positioning assembly on the carrier tray can position and rotate the adjustment of each to-be-assembled component, which is convenient for the staff to assemble from different angles, and further improves the assembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall assembly line structure of the present application (the second lifting mechanism is not shown);

[0021] Figure 2 It is a partial station perspective view of the present application;

[0022] Figure 3 It is a partial station top view of the present application;

[0023] Figure 4 It is a carrier tray top view of the present application. Reference sign: 1, carrier tray; 2, first lifting mechanism; 3, first conveying belt; 4, station seat; 6, positioning assembly; 7, positioning mechanism; 71, screw drive mechanism; 711, screw; 712, hand wheel; 713, sliding seat; 714, connecting piece; 7141, dovetail groove; 72, chuck; 721, dovetail block; 8, stepping button. DETAILED DESCRIPTION

[0024] The present application will be further described in detail below with reference to the embodiments given in the accompanying drawings.

[0025] Referring to Figures 1-4 the present embodiment, a stopcock valve assembly line comprises

[0026] a carrier tray 1 for placing the to-be-assembled components of the stopcock valve;

[0027] a first lifting mechanism 2 for lifting the carrier tray 1;

[0028] a first conveying belt 3 for the carrier tray 1;

[0029] Liftable workstation seat 4 for carrying staff, and the height of the seat is adjusted by electric control;

[0030] Second lifting mechanism for lowering the carrying tray 1 and the assembled cock valve;

[0031] Storage module for storing at least staff height information;

[0032] General control module for inputting staff height information, configuring assembly process of each workstation and personnel information of corresponding workstation to the storage module, and adjusting the height of the workstation seat 4 by electric control after obtaining the staff height information in the storage module;

[0033] The carrying tray 1 is provided with a rotating tray and a positioning assembly 6 for positioning each component to be assembled on the rotating tray. The second lifting mechanism (not shown in the figure) can adopt the same structure as the first lifting mechanism 2 and is located at both ends of the first conveying belt 3, respectively.

[0034] The general control module is electrically connected with the storage module, the first lifting mechanism 2, the second lifting mechanism, the liftable workstation seat 4 and the first conveying belt 3 to realize signal transmission and control. After the standby staff places the rotating tray on the carrying tray 1 with the components to be assembled of the cock valve, the carrying tray 1 is lifted to the height level with the first conveying belt 3 by the first lifting mechanism 2, and then is conveyed to each workstation by the first conveying belt 3; the staff at each workstation sits on the liftable workstation seat 4 to assemble, the general control module retrieves the height information of the staff from the storage module, adjusts the height of the seat by electric control system, so that the staff is in a comfortable operating position, reducing fatigue and health problems caused by improper posture. During the assembly process, the rotating tray on the carrying tray 1 can rotate relative to the carrying tray 1, the positioning assembly 6 positions the components to be assembled (such as limiting the displacement of the components by buckle, positioning pin and the like), and the staff can adjust the angle of the components by rotating the rotating tray, so as to facilitate assembly operation from different directions and improve assembly convenience. After assembly, the carrying tray 1 is lowered to the specified position by the second lifting mechanism, and the whole conveying and assembly process is completed. The structure greatly improves the assembly efficiency, reduces the labor intensity and health risk of the staff by automatic conveying and self-adaptive adjustment of the height of the seat, combined with the rotatable positioning assembly 6.

[0035] In order to fix the valve body of the cock valve, the rotating tray is provided with a positioning mechanism 7 for fixing the valve body; the positioning mechanism 7 includes at least three screw rod transmission mechanisms 71, clamping heads 72 mounted on the screw rod transmission mechanisms 71, the screw rod transmission mechanisms 71 drive the clamping heads 72 to approach or move away from the valve body, and when the three clamping heads 72 abut and clamp the valve body, the valve body is fixed.

[0036] The positioning mechanism 7 is installed on the upper surface of the rotating tray, and three screw rod transmission mechanisms 71 are uniformly distributed along the circumference of the rotating tray (e.g., at an angle of 120°), which ensures balanced clamping force on the valve body. The fixed end of the screw rod transmission mechanism 71 is connected to the rotating tray (e.g., fixed by bolts), and the chuck 72 is installed at the movable end of the screw rod transmission mechanism 71. When the valve body is placed on the rotating tray, the three chucks 72 are driven to approach the valve body by driving the screw rod transmission mechanism 71 (e.g., manually or electrically), until they all abut the surface of the valve body and clamp it, achieving stable fixation of the valve body through three-point positioning, avoiding displacement or shaking of the valve body during assembly, and ensuring assembly accuracy. Since the chuck 72 can move away from the valve body under the drive of the screw rod transmission mechanism 71, it is convenient for the valve body to be taken and placed, and the operation is flexible. The positioning mechanism 7 cooperates with the rotating tray to rotate with the rotating tray while the valve body is fixed, so that the workers can assemble the valve body at different positions without moving, further improving the assembly efficiency and operation convenience. This step can clamp the valve body when the material preparation personnel prepare the materials, which is convenient for subsequent workers to operate and maintain stability during the transmission process.

[0037] Preferably, the screw rod transmission mechanism 71 includes a screw rod 711, a hand wheel 712, and a sliding seat 713. The hand wheel 712 is connected to the screw rod 711, and the screw rod 711 is driven to rotate by the hand wheel 712. The sliding seat 713 is threadedly connected to the screw rod 711, and the sliding seat 713 is driven to reciprocate along the length direction of the screw rod 711 by the screw rod 711. The bottom of the chuck 72 is provided with a connecting piece 714, which is rotatably connected to the sliding seat 713 and automatically rotates to fit the valve body when the chuck 72 abuts the valve body. The three chucks 72 are automatically rotated to clamp the valve seat by mutual cooperation.

[0038] Both ends of the lead screw 711 are installed on the rotating tray through bearing seats, the hand wheel 712 is fixedly connected to the outer end (the end away from the valve body) of the lead screw 711, the sliding seat 713 is sleeved on the lead screw 711 and forms a threaded transmission structure with the lead screw 711, a guide groove is arranged on the rotating tray at a position corresponding to the sliding seat 713, the bottom of the sliding seat 713 is embedded in the guide groove, the sliding seat 713 is limited to rotate synchronously with the lead screw 711 and only reciprocate along the length direction of the lead screw 711. The lower end of the connecting piece 714 is connected with the sliding seat 713 through a bearing (realizing rotatable connection), and the upper end of the connecting piece 714 is fixedly connected with the chuck 72. When the hand wheel 712 is rotated, the lead screw 711 is rotated and drives the sliding seat 713 to move towards the valve body, and the chuck 72 moves towards the valve body along with the sliding seat 713; when the chuck 72 contacts the surface of the valve body, the chuck 72 is rotated relative to the sliding seat 713 through the connecting piece 714 under the reaction force of the valve body due to the possibility of the existence of curvature or inclination on the surface of the valve body, until the surface of the chuck 72 is in close contact with the surface of the valve body and stable stress is formed; the three chucks 72 are automatically rotated respectively to adapt to the surface shape of the corresponding position of the valve body, and finally form a tight clamping on the valve seat. The structure can realize the movement and close contact of the chuck 72 by manually operating the hand wheel 712, the operation is simple, and the automatic close contact function enables the chuck 72 to adapt to valve bodies of different shapes, improves the universality and clamping stability of the positioning mechanism 7, reduces the valve body shaking during assembly, and improves the assembly precision.

[0039] Specifically, the connecting piece 714 is axially fixed and axially rotatable with the sliding seat 713, the side surface of the connecting piece 714 is provided with a dovetail groove 7141, and the dovetail groove 7141 extends to the upper end surface of the connecting piece 714 and communicates with the upper end surface of the connecting piece 714 on the side corresponding to the upper end surface of the connecting piece 714; the chuck 72 is provided with a dovetail block 721 for plug-in connection with the dovetail groove 7141, and the chuck 72 is partially inserted into and connected to the connecting piece 714 through the dovetail groove 7141 on the upper end surface of the connecting piece 714.

[0040] The axial fixation of the connecting piece 714 and the sliding seat 713 is realized by the cooperation of a shaft shoulder and a snap spring (the lower end of the connecting piece 714 is provided with a shaft shoulder, the sliding seat 713 is provided with a snap spring slot at the corresponding position, and the snap spring is clamped into the slot to limit the axial movement of the connecting piece 714), and the axial rotatable connection of the two is realized through a bearing. The dovetail groove 7141 on the side surface of the connecting piece 714 is isosceles trapezoidal in cross section, the upper end of which is in communication with the upper end surface of the connecting piece 714, forming an open structure; the dovetail block 721 on the chuck 72 matches the shape and size of the dovetail groove 7141. When installing the chuck 72, insert the dovetail block 721 on the chuck 72 into the dovetail groove 7141 from the opening of the dovetail groove 7141 on the upper end surface of the connecting piece 714, until the dovetail block 721 is completely embedded in the dovetail groove 7141, to realize the fixed connection of the chuck 72 and the connecting piece 714; if it is necessary to replace the chuck 72, it can be pulled out upward along the dovetail groove 7141, which is convenient to operate. The connection structure ensures the stable connection between the chuck 72 and the connecting piece 714, avoids the chuck 72 from falling off during assembly, and realizes the quick replacement of the chuck 72, which is convenient for replacing the chuck 72 matched with different specifications of valve bodies, improves the universality and maintenance convenience of the equipment, and further improves the assembly efficiency.

[0041] Further, the side surface of the chuck 72 corresponding to the valve body is an arc surface, and the arc surface is used to adapt to the rotation of the valve body and fit the rotating surface.

[0042] The side surface of the chuck 72 corresponding to the valve body is an outward convex arc surface, which can better match the outer surface of the valve body when the chuck 72 clamps the valve body, and can adapt to more specifications of valve bodies with the rotation of the connecting piece 714.

[0043] In order to enable the first conveying belt 3 to better adapt to the assembly progress of each station, a stepping button 8 or a trigger button is arranged corresponding to each liftable station seat 4, which is used for an employee to step and trigger a preliminary signal, and when all the stepping buttons 8 or trigger buttons are in the triggered state, the first conveying belt 3 and the second conveying belt perform a conveying action and convey the current station's carrying tray 1 to the next station.

[0044] The pedal button 8 (or trigger button) is fixedly installed on the ground in front of each workstation seat 4 (or on the side of the seat) and is electrically connected to the general control module through a wire. When the staff at each workstation completes the assembly operation of the current workstation, the corresponding button is pressed or pressed, and the button sends a preparation signal to the general control module. The general control module receives the preparation signal of each workstation in real time, and when it is detected that the buttons of all workstations are in the trigger state (i.e., all workstations have completed assembly), it sends a start signal to the first conveying belt 3 and the second conveying belt, and the two conveying belts run synchronously to convey the current workstation's carrying tray 1 to the next workstation. This structure realizes the coordinated linkage of each workstation, avoids the transmission confusion caused by the incomplete operation of a certain workstation, and ensures the orderly operation of the assembly line; by actively triggering the signal by the staff, it ensures that the assembly is completed before transmission, reduces the misoperation, and improves the reliability and efficiency of production.

[0045] Preferably, the general control module also receives the preparation signal triggered by each pedal button 8 or trigger button, and records the corresponding workstation and the preparation signal duration through the storage module, which is used to adjust the assembly process content of each workstation or adjust the corresponding workstation personnel information according to the preparation signal.

[0046] The general control module and the storage module are connected through a data bus and can read and write data in real time. When the pedal button 8 or the trigger button is triggered, the general control module not only receives the preparation signal, but also records the workstation number corresponding to the signal and the signal duration (the time from triggering to the start of the conveying belt). The storage module stores these data in chronological order, and the general control module analyzes the data (such as the preparation signal duration of a certain workstation being significantly too long) to determine that the assembly process of the workstation may have unreasonable places (such as too many procedures) or insufficient personnel operation proficiency, and then automatically or prompts the management personnel to adjust the assembly process content of the workstation (such as distributing part of the procedures to other workstations), or adjust the personnel information of the workstation (such as replacing a more skilled operator). Through the recording and analysis of the preparation signal data, this structure realizes the dynamic optimization of the assembly process and the reasonable allocation of personnel, so that the assembly line always maintains an efficient operation state, further improving the production efficiency.

[0047] The following scheme can also be implemented: The general control module also presets the preparation signal waiting duration information and the number of timeouts for each workstation. When the general control module obtains the preparation signal, the waiting duration information of the corresponding workstation times out, the waiting duration of the workstation is too long, and when the number of timeouts exceeds the preset number of timeouts, the assembly process and the personnel information of the workstation are optimized by decomposing the assembly process of other workstations or reallocating the employee information corresponding to the workstation.

[0048] The total control module is internally preset with a standby signal waiting time threshold (such as 5 minutes) and a timeout number threshold (such as 3 times) for each station, and these parameters can be set and modified through the operation interface of the total control module. When a station triggers a standby signal, the total control module starts timing, and if the waiting time (i.e. the time from triggering to triggering signals at all stations) of the station exceeds the preset threshold, it is determined to be timeout; the total control module accumulates the timeout number of each station, and when the timeout number of a station exceeds the preset threshold, the total control module starts the optimization mechanism or manual optimization: by analyzing the assembly process of each station, part of the non-core process of the timeout station is decomposed to other stations with shorter waiting time, or the station and employee information is matched again through the storage module (such as deploying employees with fast operation speed to the timeout station). The structure discovers and solves the bottleneck station problem in the assembly line in time through the preset threshold and the optimization mechanism, avoids the overall efficiency decline caused by long-term timeout of a station, realizes the dynamic optimization of the assembly process and personnel allocation, and ensures the overall efficient operation of the assembly line. The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above embodiment. Any technical solution falling within the scope of the present application should be considered within the protection scope of the present application. It should be noted that for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application should also be considered within the protection scope of the present application.

Claims

1. A plug valve assembly line, characterized in that, include A support tray for holding the plug valve components to be assembled; The first lifting mechanism is used to lift the carrying pallet; The first conveyor belt is used to carry pallets; Height-adjustable workstation seats are used to support staff, and the seat height can be adjusted electronically. The second lifting mechanism is used to lower the support tray and the assembled plug valve; The storage module is used to store at least the staff's height information; The central control module is used to input the height information of the workers into the storage module, configure the assembly process of each workstation and the personnel information of the corresponding workstation, and adjust the height of the workstation seat through electronic control after obtaining the height information of the workers in the storage module. The carrier tray is provided with a rotating tray and a positioning component provided on the rotating tray for positioning each component to be assembled. It also includes a foot button or trigger button for each height-adjustable workstation seat, which is used by employees to step on it to trigger a preparatory signal. When all foot buttons or trigger buttons are in the triggered state, the first conveyor belt performs a conveying action and conveys the carrying tray of the current workstation to the next workstation. The central control module also receives the preparatory signal triggered by each foot button or trigger button, and records the corresponding workstation and preparatory signal duration through the storage module, which is used to adjust the assembly process content of each workstation or adjust the corresponding workstation personnel information according to the preparatory signal. The central control module also presets the waiting time information and timeout number for each workstation's preparatory signal. When the waiting time information for the corresponding workstation times out after the central control module obtains the preparatory signal, the waiting time for that workstation is too long. When the number of timeouts exceeds the preset number of timeouts, the assembly process and the personnel information corresponding to the workstations are optimized by decomposing the assembly process of other workstations or reallocating the employee information corresponding to the workstations.

2. The plug valve assembly line according to claim 1, characterized in that, The rotating tray is equipped with a positioning mechanism for fixing the valve body. The positioning mechanism includes at least three screw drive mechanisms and clamps mounted on the screw drive mechanisms. The screw drive mechanisms drive the clamps to approach or move away from the valve body, and fix the valve body when all three clamps abut and clamp the valve body.

3. The plug valve assembly line according to claim 2, characterized in that, The lead screw transmission mechanism includes a lead screw, a handwheel, and a slide block; the handwheel is connected to the lead screw, and the lead screw is driven to rotate through the handwheel; the slide block is threadedly connected to the lead screw, and the slide block is driven to reciprocate along the length of the lead screw through the lead screw; the bottom of the chuck is provided with a connecting member, which is rotatably connected to the slide block, and automatically rotates to fit the valve body when the chuck abuts against the valve body; the three chucks cooperate with each other through automatic rotation to clamp the valve seat.

4. The plug valve assembly line according to claim 3, characterized in that, The connector is axially fixed and circumferentially rotatable to the slide. The side of the connector is provided with a dovetail groove, and the dovetail groove extends to the upper end face of the connector from one side of the upper end face of the connector and communicates with the upper end face of the connector. The chuck is provided with a dovetail block for fitting into the dovetail groove. The chuck is inserted into and connected to the connector by the dovetail groove portion of the upper end face of the connector.

5. The plug valve assembly line according to claim 2, 3, or 4, characterized in that, The clamp has an arc surface on one side of the valve body, and this arc surface is used to adapt to the rotation of the valve body and fit the rotating surface.

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