Assembly line and oiling device
By designing an integrated oil coating device in the car seat slide assembly production line, using pressure reducing valves, gear flow meters, switch valves and oil injection heads, combined with PLC automatic control, the problems of low oil coating accuracy and insufficient space utilization in the existing technology are solved, and precisely the oil coating of the seat slide screw and space savings in the assembly production line are achieved.
Patent Information
- Application Number
- CN202421220219.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-05-30
AI Technical Summary
In the existing car seat slide assembly production line, the oiling process accuracy is low, and the precise oiling of the screw cannot be achieved, and the assembly production line space is insufficient.
An integrated assembly production line and oil coating device is designed, including a pressure reducing valve, a gear flowmeter, a switch valve and an oil injection head. The oil coating amount is accurately controlled through the gear flowmeter, and automatic control is used by PLC to achieve accurate oiling of the seat rail screw.
Accurate oiling of the seat rail screw is achieved, which improves the integration of assembly production, saves space in the assembly production line, and improves the accuracy of the oiling process.
Smart Images
Figure CN222569866U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to an assembly line and an oiling device. Background Art
[0002] At present, in the assembly line of automobile seat rails, the assembly of seat rails generally involves oiling the screw rod at an oiling station, for example, using an oiling gun at the oiling station. The specific process may be to use a switch valve to control the oiling gun, and the PLC (Programmable Logic Controller) gives the switch valve instructions to open and close the valve in conjunction with a timer. However, the accuracy of this oiling process is low, and it is impossible to achieve accurate oiling of the screw rod.
[0003] After oiling, move to the next station to assemble the seat slides.
[0004] Therefore, there is a need in the art for an assembly production line and an oiling device to further improve the integration of assembly production, save space in the assembly production line, and achieve precise and quantitative oiling of the screw rod. Utility Model Content
[0005] The technical problem to be solved by the present application is to improve the integration of assembly production through an assembly production line and an oiling device, so as to save space of the assembly production line and realize accurate and quantitative oiling of the screw rod.
[0006] An assembly production line according to the first aspect of the present application includes an assembly station, at which are provided: an assembly device for assembling corresponding components; and an oiling device for oiling the components located at the assembly station, the oiling device comprising: a pressure reducing valve, an input end of the pressure reducing valve being connected to an output end of an oil pump to receive lubricating oil or grease output from the oil pump, the oil pump being used to extract lubricating oil or grease from an oil storage container; a gear flowmeter, an input end of the gear flowmeter being connected to an output end of the pressure reducing valve; a switch valve, an input end of the switch valve being connected to an output end of the gear flowmeter; and an oiling head, an input end of the oiling head being connected to an output end of the switch valve, the output end of the oiling head being used to directly output lubricating oil or grease to the components.
[0007] In one or more embodiments of the assembly line, the pressure reducing valve and the gear flow meter are arranged on the same substrate, and the pressure reducing valve is located above the gear flow meter.
[0008] In one or more embodiments of the assembly line, the oil pump is disposed outside the assembly station.
[0009] In one or more embodiments of the assembly production line, the assembly station is surrounded by a protective cover and is located in a space defined by the protective cover.
[0010] In one or more embodiments of the assembly production line, the oiling head includes an oiling head component, which is connected to the switch valve. The oiling head also includes a hollow straight rod pipeline, one end of which is connected to the oiling head component, and the other end directly outputs lubricating oil or grease to the component.
[0011] In one or more embodiments of the assembly production line, the gear flow meter and the switch valve are electrically connected to a programmable logic controller.
[0012] In one or more embodiments of the assembly production line, the first pin and the second pin of the gear flowmeter are respectively connected to the first channel and the second channel of the counting module of the programmable logic controller, the third pin and the fourth pin of the gear flowmeter are respectively connected to the high voltage and the low voltage of the counting module; the fifth pin of the gear flowmeter is grounded.
[0013] In one or more embodiments of the assembly production line, a human-computer interaction interface is further included, through which the set oiling weight can be input.
[0014] In one or more embodiments of the assembly line, the component is a vehicle seat slide.
[0015] According to the second aspect of the present application, an oiling device includes a pressure reducing valve, the input end of the pressure reducing valve is connected to the output end of an oil pump to receive lubricating oil or grease output from the oil pump, and the oil pump is used to extract lubricating oil or grease from an oil storage container; a gear flowmeter, the input end of the gear flowmeter is connected to the output end of the pressure reducing valve; a switch valve, the input end of the switch valve is connected to the output end of the gear flowmeter; and an oiling head, the input end of the oiling head is connected to the output end of the switch valve, and the output end of the oiling head is used to directly output lubricating oil or grease to the component.
[0016] The beneficial effects of the assembly production line and oiling device introduced above include but are not limited to: by arranging a gear flow meter in series upstream of the grease switching valve, the gear flow meter can accurately control the oiling weight, thereby achieving accurate and quantitative oiling of the seat slide rails; and since the oiling device and the assembly device can be integrated in the same workstation, after the screw rod of the seat slide rail is accurately and quantitatively oiled, the assembly operation is carried out at the same workstation, thereby improving the integration of the assembly production and saving space in the assembly production line. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below with reference to the accompanying drawings, wherein:
[0018] Figure 1 This is a schematic block diagram of the structure of an assembly production line according to an embodiment of the present application.
[0019] FIG. 2A to FIG. 2C It is a schematic diagram of the structure of an assembly production line according to an embodiment of the present application.
[0020] Figure 3 It is a structural schematic diagram of an oil pump corresponding to an oiling device of an assembly production line according to an embodiment of the present application.
[0021] Figure 4 This is a schematic diagram of the structure of a pressure reducing valve corresponding to an oil coating device of an assembly production line according to an embodiment of the present application.
[0022] Figure 5 This is a schematic structural diagram of a gear flow meter of an oiling device of an assembly production line according to an embodiment of the present application.
[0023] Figure 6 This is a schematic structural diagram of a switch valve and an oiling head of an oiling device of an assembly production line according to an embodiment of the present application.
[0024] Fig. 7A as well as Figure 7B A schematic diagram of pins of a gear flow meter in an assembly production line according to an embodiment of the present application.
[0025] Figure 8 A schematic diagram of the structure of a seat slide rail for oiling and assembling in an assembly production line according to an embodiment of the present application.
[0026] Reference numerals:
[0027] 1000-Assembly Production Line
[0028] 1001-Assembly station
[0029] 100-Oil coating device
[0030] 1-Oil pump
[0031] 2-Pressure reducing valve
[0032] 3-Gear flow meter
[0033] 31-First stitch
[0034] 32-Second pin
[0035] 33- Third pin
[0036] 34-4th pin
[0037] 35-Fifth pin
[0038] 4-Switch valve
[0039] 5- Grease head
[0040] 6-Substrate
[0041] 7-Programmable Logic Controller
[0042] 8-Human-computer interaction interface
[0043] 200-Assembly device
[0044] 300-Parts
[0045] 400 - Protective cover. DETAILED DESCRIPTION
[0046] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below with reference to the accompanying drawings.
[0047] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein, and therefore the present application is not limited to the specific embodiments disclosed below.
[0048] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.
[0049] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, upright, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present application. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0050] In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and cannot be understood as limiting the scope of protection of this application. In addition, although the terms used in this application are selected from well-known and commonly used terms, some terms mentioned in the specification of this application may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article. In addition, it is required to understand this application not only by the actual terms used, but also by the meaning implied by each term.
[0051] The assembly production line and oiling device of the present application take the oiling of the screw rod of the seat slide rail and the assembly of the seat slide rail as an example, but it is not limited to this. Other parts that need to be oiled during the assembly process can be applied to the assembly production line and oiling device introduced in this application and fall within the protection scope of this application.
[0052] refer to Figure 1 as well as FIG. 2A to FIG. 2C As shown, the assembly production line 1000 includes an assembly station 1001, and an oiling device 100 and an assembly device 200 are provided at the assembly station 1001. FIG. 2A to FIG. 2C As shown, in some embodiments, the assembly station 1001 is surrounded by the protective cover 400 and is located in a space defined by the protective cover 400 .
[0053] Among them, the assembly device 200 is used to assemble the corresponding parts 300. The assembly device and the oiling device of the assembly production line can be fixed and assembled by common mechanical device parts 300 such as cylinders, clamps, guide rails, conveyor belts, drive motors, and mechanical arms. The specific structure is not repeated here. Figure 8 As shown, the component 300 may be a car seat slide rail 301 , and the oiling device applies lubricating oil or grease to the screw rod 302 in a quantitative and accurate manner. After the oiling is completed, the assembly operation is performed at the assembly station 1001 under the action of the assembly device 200 .
[0054] The oiling device 100 includes a pressure reducing valve 2, a gear flow meter 3, a switch valve 4 and an oiling head 5. Figures 1 to 4 As shown, the input end of the pressure reducing valve 2 is connected to the output end of the oil pump 1 to receive the lubricating oil or grease output from the oil pump 1. Figures 1 to 3 As shown, the oil pump 1 is used to extract lubricating oil or grease from the oil storage container; the specific structure of the oil pump 1 can be, for example, a pneumatic plunger pump, which has good reliability when conveying medium and high viscosity materials. The oil storage container can be an oil barrel specially used to store lubricating oil or grease, and correspondingly, the oil pump can also be called a barrel pump, or barrel pump for short.
[0055] Preferably, if Figure 2B as well as Figure 3 As shown, the specific positions of the oil pump 1 and the oil storage container can be set outside the assembly station 1001, which can simplify the structure of the assembly production line, avoid the oil pump and the oil storage container occupying the relatively tight space of the assembly station, and make the overall spatial layout of the production line more reasonable.
[0056] like Figure 1 , FIG. 2A to FIG. 2C as well as Figures 4 to 7A as well as Figure 7B As shown, the input end of the gear flowmeter 3 is connected to the output end of the pressure reducing valve 2 , and the input end of the switch valve 4 is connected to the output end of the gear flowmeter 3 .
[0057] The pressure reducing valve 2 may be Figure 4 In the structure shown, the meaning and specific structure of the pressure reducing valve 2 here are similar to the general meaning and structure in the art, that is, a valve that reduces the inlet pressure to a certain required outlet pressure and automatically maintains a stable outlet pressure by relying on the energy of the medium itself. From the perspective of fluid mechanics, the pressure reducing valve is a throttling element with variable local resistance, that is, by changing the throttling area, the flow rate and the kinetic energy of the fluid are changed, resulting in different pressure losses, thereby achieving the purpose of pressure reduction. Then, relying on the adjustment of the control and regulation system, the fluctuation of the pressure behind the valve is balanced with the spring force, so that the pressure behind the valve is kept constant within a certain error range. Common types include combined pressure reducing valves, action pressure reducing valves, piston pressure reducing valves, diaphragm pressure reducing valves, direct-acting pressure reducing valves, pilot pressure reducing valves and other forms.
[0058] The structure of the gear flow meter 3 can be as follows Figure 5 As shown, the gear flowmeter 3 is a conventional component in the art, which is a type of volumetric flowmeter, used for precise continuous or intermittent measurement of the flow rate or instantaneous flow rate of liquid in a pipeline. It is particularly suitable for flow measurement of high-viscosity media such as heavy oil, polyvinyl alcohol, and resin. The specific shape can be, for example, an oval gear flowmeter, but it is not limited to this. The commercially available model can be, for example, the "VSI high-precision flowmeter" of DOPAG.
[0059] (“VSI High Definition Flow Meter”), but is not intended to be limiting.
[0060] Preferably, if Figure 2AAs shown, in some embodiments, the pressure reducing valve 2 and the gear flowmeter 3 are arranged on the same substrate 6, and the pressure reducing valve 2 is located above the gear flowmeter 3. This can further improve the integration of the system, so that the oiling position of the oiling device is located above the component 300, and other components used for fixing and assembling in the assembly station can be arranged on the side and / or below the component 300, thereby making the structure of the assembly station 1001 integrated with oiling and assembly functions more compact.
[0061] The structure of the switch valve 4 can refer to Figure 6 As shown in the content, the meaning of the switch valve 4 is similar to the general meaning in the art, that is, a switch that acts as a cutoff, generally made of metal material, and the specific form can be a pneumatic switch valve, an electric switch valve, etc.
[0062] The structure of the oiling head 5 can be further referred to Figure 6 As shown, the input end of the oiling head 5 is connected to the output end of the switch valve 4 , and the output end of the oiling head 5 is used to directly output lubricating oil or grease to the component 300 .
[0063] Continue to refer Figure 6 As shown, in some embodiments, the specific structure of the oiling head 5 can be that the oiling head 5 includes an oiling head component 51, the oiling head component 51 is connected to the switching valve 4, and the oiling head 5 also includes a hollow straight rod pipeline 52, one end of the hollow straight rod pipeline 52 is connected to the oiling head component 51, and the other end directly outputs lubricating oil or grease to the component 300.
[0064] Continue to refer Figure 1 As shown, the gear flowmeter 3 and the switch valve 4 are electrically connected to a programmable logic controller 7 (PLC). The PLC is a digital operation electronic system designed specifically for use in an industrial environment. It uses a programmable memory to store instructions for performing operations such as logical operations, sequential control, timing, counting and arithmetic operations, and controls various types of mechanical equipment or production processes through digital or analog input and output. It can be understood that the control methods and principles of PLC for commonly used industrial control elements such as the gear flowmeter 3, the switch valve 4 and other elements are well known in the art and will not be repeated here. The commercially available model of the PLC used can be, for example, Siemens' S7-1200, S7-1500 and other models, but is not limited thereto.
[0065] refer to Fig. 7A as well as Figure 7BAs shown, the connection structure between the gear flowmeter 3 and the counting module of the PLC can be that the first pin 31 and the second pin 32 of the gear flowmeter 3 are respectively connected to the first channel and the second channel of the counting module of the programmable logic controller 7, and the third pin 33 and the fourth pin 34 of the gear flowmeter 3 are respectively connected to the high voltage and the low voltage of the counting module; the fifth pin 35 of the gear flowmeter 3 is grounded, so as to provide a basis for PLC to collect data. The counting module of the programmable logic controller 7 here can be, for example, a TM Count module of Siemens, using a TM Count 2x24V dual-channel module, installed on the rack of S7-1500. It can be understood that other types of counting modules can also be used, not limited to the above introduction.
[0066] The specific operation method of controlling the oiling amount by PLC can be as follows:
[0067] Call the High_Speed_Counter process function block in the PLC to collect the real-time pulse value CountValue of the gear flowmeter. The data type of CountValue in its background data block DB15000 is Dint.
[0068] Since the data type of the CountValue of the gear flowmeter is Dint, in order to ensure the calculation accuracy, the data type of the calculated result is Real. Finally, the data type needs to be converted from Real to Dint to facilitate the final comparison operation.
[0069] Set grease weight ÷ grease viscosity coefficient = grease volume
[0070] Grease volume ÷ gear flowmeter coefficient = required pulse volume
[0071] The set grease weight unit is gram, and the grease viscosity coefficient (for example, if KLUBER grease is used, its viscosity coefficient is 2, and the coefficient of the gear flow meter is 0.02).
[0072] When the real-time pulse of the gear flow meter collected by the PLC is compared with the pulse obtained by calculating the set grease weight, once the current pulse of the gear flow meter is greater than or equal to the pulse obtained by calculating the set grease weight, the grease switch valve is turned off.
[0073] In addition, refer to Figure 1 As shown, the assembly production line 1000 also includes a human-computer interaction interface 8, through which the set oiling weight can be input, either by manually inputting a specific value or by calling a database to select the set oiling weight corresponding to different product requirements, so as to further facilitate the user's operation.
[0074] As described above, the present application further provides an oiling device 100, including a pressure reducing valve 2, the input end of the pressure reducing valve 2 is connected to the output end of the oil pump 1 to receive the lubricating oil or grease output from the oil pump 1, and the oil pump 1 is used to extract the lubricating oil or grease from the oil storage container; a gear flowmeter 3, the input end of the gear flowmeter 3 is connected to the output end of the pressure reducing valve 2; a switch valve 4, the input end of the switch valve 4 is connected to the output end of the gear flowmeter 3; an oiling head 5, the input end of the oiling head 5 is connected to the output end of the switch valve 4, and the output end of the oiling head 5 is used to directly output the lubricating oil or grease to the component 300. The oiling device 100 can be used in any scenario requiring automatic oiling, not limited to the assembly production line mentioned above.
[0075] As introduced above, the beneficial effects of the assembly production line and the oiling device of the present application include but are not limited to: by arranging a gear flow meter in series upstream of the grease switching valve, the gear flow meter can accurately control the oiling weight, thereby realizing accurate and quantitative oiling of the seat slide rails; and since the oiling device and the assembly device can be integrated in the same workstation, after the screw rod of the seat slide rail is accurately and quantitatively oiled, the assembly operation is carried out at the same workstation, thereby improving the integration of the assembly production and saving space of the assembly production line.
[0076] Although the present application has been described with reference to the current specific embodiments, ordinary technicians in this technical field should recognize that the above embodiments are only used to illustrate the present application, and various equivalent changes or substitutions may be made without departing from the spirit of the present application. Therefore, as long as the changes and modifications to the above embodiments are within the essential spirit of the present application, they will fall within the scope of the claims of the present application.
Claims
1. An assembly production line (1000), characterized in that: The invention comprises an assembly station (1001), wherein the assembly station (1001) is provided with: An assembly device (200) for assembling corresponding components (300); and An oiling device (100) is used to oil the component (300) located at the assembly station (1001), and the oiling device (100) comprises: a pressure reducing valve (2), wherein an input end of the pressure reducing valve (2) is connected to an output end of an oil pump (1) to receive lubricating oil or lubricating grease outputted from the oil pump (1), wherein the oil pump (1) is used to extract lubricating oil or lubricating grease from an oil storage container; A gear flow meter (3), the input end of the gear flow meter (3) being connected to the output end of the pressure reducing valve (2); A switch valve (4), wherein an input end of the switch valve (4) is connected to an output end of the gear flow meter (3); An oiling head (5), the input end of the oiling head (5) is connected to the output end of the switch valve (4), and the output end of the oiling head (5) is used to directly output lubricating oil or lubricating grease to the component (300).
2. The assembly line (1000) according to claim 1, characterized in that: The pressure reducing valve (2) and the gear flow meter (3) are arranged on the same substrate (6), and the pressure reducing valve (2) is located above the gear flow meter (3).
3. The assembly line (1000) according to claim 1, characterized in that: The oil pump (1) is arranged outside the assembly station (1001).
4. The assembly line (1000) according to claim 1, characterized in that: The assembly station (1001) is surrounded by a protective cover (400) and is located in a space defined by the protective cover (400).
5. The assembly line (1000) according to claim 1, characterized in that: The oiling head (5) comprises an oiling head piece (51), wherein the oiling head piece (51) is connected to the switch valve (4), and the oiling head (5) further comprises a hollow straight rod pipeline (52), wherein one end of the hollow straight rod pipeline (52) is connected to the oiling head piece (51), and the other end directly outputs lubricating oil or lubricating grease to the component (300).
6. The assembly line (1000) according to claim 1, characterized in that: It also comprises a human-machine interaction interface (8), through which the set oiling weight can be input.
7. The assembly line (1000) according to claim 1, characterized in that: The component (300) is a car seat slide rail (301).
8. An oiling device (100), characterized in that: include: a pressure reducing valve (2), wherein an input end of the pressure reducing valve (2) is connected to an output end of an oil pump (1) to receive lubricating oil or lubricating grease outputted from the oil pump (1), wherein the oil pump (1) is used to extract lubricating oil or lubricating grease from an oil storage container; A gear flow meter (3), the input end of the gear flow meter (3) being connected to the output end of the pressure reducing valve (2); A switch valve (4), wherein an input end of the switch valve (4) is connected to an output end of the gear flow meter (3); An oiling head (5), the input end of the oiling head (5) is connected to the output end of the switch valve (4), and the output end of the oiling head (5) is used to directly output lubricating oil or lubricating grease to the component (300).