Material loading and unloading tray with movable bottom plate applied to hydrogen energy stack production line
By designing materials up and down pallets for hydrogen stack production lines, using reference base plates, positioning and fixing backers, movable base plate guide rods and pallet guide bearings, the problem of low processing efficiency of light and thin flake parts in hydrogen stack production lines is solved, and efficient and accurate material operation and low-cost production are achieved.
Patent Information
- Application Number
- CN202422719845.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-11-07
AI Technical Summary
In the hydrogen stack production line, the processing efficiency of light and thin flake-like parts is inefficient, and manual operation is difficult to ensure accuracy and consistency, which affects production efficiency and quality, and increases the labor intensity of workers.
Design a material upper and lower line pallet including reference base plate, positioning and fixing backrest, movable bottom plate, movable bottom plate guide rod and pallet guide bearing. The initial accuracy is ensured by positioning and fixing backrest, the movable bottom plate guide rod ensures position accuracy, photoelectric sensors detect the presence or absence of materials, and pallet guide bearings reduce friction, achieving accurate positioning and convenient operation.
It improves the accuracy and production efficiency of parts, reduces labor intensity, ensures the stability and quality of production, and has a simple structure and low cost, extends the service life of the pallet.
Smart Images
Figure CN223303133U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydrogen energy production, in particular to a material loading and unloading tray with a movable bottom plate used in a hydrogen energy stack production line. Background Art
[0002] In hydrogen fuel cell production, bipolar plates, membrane electrode metallurgy (MEA), and subsequent single cells play a crucial role as core components. Currently, the handling of these thin, lightweight components in hydrogen fuel cell production lines is relatively traditional. Typically, they are assembled manually, piece by piece. During this process, without specialized pallets or tooling, loading and unloading is accomplished solely through manual labor and experience.
[0003] However, this traditional processing method has many obvious shortcomings. First, because these parts are relatively light and thin, they are difficult to grasp, transfer and position. Manual single-piece picking is not only inefficient, but also prone to hand shaking during operation, resulting in inaccurate positioning of parts, thus affecting assembly accuracy. Secondly, manual operation is difficult to ensure consistency, and different operators may have different operating methods and strengths, further reducing the accuracy and quality of production. Furthermore, the manual single-piece picking and assembly method cannot achieve mass production, which seriously restricts the improvement of production efficiency. In addition, this method also increases the labor intensity of workers, easily leads to worker fatigue, and thus affects the stability and sustainability of production. Therefore, a material loading and unloading pallet with a movable bottom plate for use in hydrogen energy stack production lines is needed to solve the above problems. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a material loading and unloading tray with a movable bottom plate for use in a hydrogen energy stack production line.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a material loading and unloading pallet with a movable bottom plate used in a hydrogen energy stack production line, comprising a reference bottom plate, a positioning and fixing backrest, a movable bottom plate, a movable bottom plate guide rod and a pallet guide bearing. A movable bottom plate is installed in the middle of the top of the reference bottom plate, and two sets of positioning and fixing backrests are bolted to the front and back of the top of the reference bottom plate, and the movable bottom plate is located in the middle of the positioning and fixing backrest.
[0006] Preferably, a group of the positioning and fixing supports includes two relative positioning and fixing supports, and the angles of the positioning and fixing supports are both right angles.
[0007] Preferably, movable bottom plate guide rods are passed through the front and back sides of the top of the movable bottom plate, and the tops of the movable bottom plate guide rods are provided with limiting plates.
[0008] Preferably, a hole is provided in the middle of the top of the movable bottom plate, and square openings are provided on both sides of the top of the movable bottom plate. Photoelectric sensors are installed just below the square openings on both sides of the top of the movable bottom plate, and the presence of materials on the movable floor scale can be detected through the square openings.
[0009] Preferably, the front and back sides of the top of the reference base plate are both bolted with handles.
[0010] Preferably, the front and back sides of the bottom of the reference base plate are both bolted to tray guide bearings.
[0011] Preferably, the tray guide bearing is a deep groove ball bearing.
[0012] Beneficial effects
[0013] In the utility model, the new tray structure ensures the accuracy of picking up and placing workpiece materials while improving the overall efficiency; the structure is simple, the machining and assembly requirements are low, cost is saved, and labor intensity is reduced; the overall structure is clean and pollution-free, effectively protecting the environment.
[0014] In the present utility model, the precise positioning, stable support and convenient loading and unloading operations of the three components of bipolar plates, membrane electrodes and single cells are achieved through the coordinated action of the reference base plate, the positioning and fixed backing, the movable base plate, the movable base plate guide rod and the tray guide bearing. During the assembly, use and maintenance process, the design and function of each component cooperate with each other to ensure the efficient operation of the tray in the production line. Specifically, the positioning and fixed backing ensures the initial accuracy of the workpiece, the movable base plate is combined with the bottom lifting electric cylinder to realize convenient height adjustment, the movable base plate guide rod ensures the position accuracy of the up and down movement, the photoelectric sensor detects the presence of materials in real time to improve the degree of automation, the wear-resistant strips at the bottom of the reference base plate and the tray guide bearings reduce friction, improve stability and save labor during transportation and pushing and pulling respectively, and regular maintenance can extend the service life of the tray. The overall installation is simple, the cost is low but the effect is significant, which greatly improves the production efficiency and quality of the hydrogen energy stack production line. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is the overall structural diagram of the utility model;
[0016] Figure 2 This is an overall top view of the utility model;
[0017] Figure 3 It is the overall front view of the utility model;
[0018] Figure 4 It is an overall side view of the utility model.
[0019] Legend:
[0020] 1. Reference base plate; 2. Positioning and fixing backrest; 3. Movable base plate; 4. Movable base plate guide rod; 5. Tray guide bearing; 6. Handle; 7. Limit plate. DETAILED DESCRIPTION
[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments and drawings. However, the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.
[0022] The specific embodiments of the present utility model are described below with reference to the accompanying drawings. Specific embodiment one:
[0024] Reference Figure 1-4 A material loading and unloading pallet with a movable bottom plate used in a hydrogen energy stack production line includes a reference bottom plate 1, a positioning and fixing backrest 2, a movable bottom plate 3, a movable bottom plate guide rod 4 and a pallet guide bearing 5. The movable bottom plate 3 is installed in the middle of the top of the reference bottom plate 1, and two groups of positioning and fixing backrests 2 are bolted on the front and back of the top of the reference bottom plate 1. The movable bottom plate 3 is located in the middle of the positioning and fixing backrest 2.
[0025] The entire pallet structure consists of a reference base plate 1, a positioning and fixing backrest 2, a movable base plate 3, a movable base plate guide rod 4 and a pallet guide bearing 5. This pallet is used for the three main components of the hydrogen energy stack production line, namely the bipolar plates, membrane electrodes and single cells. The components are positioned in the pallet by the positioning and fixing backrest 2 in a certain direction, and the bottom of the movable base plate 3 in the pallet is lifted up by a lifting cylinder.
[0026] The function of the reference base plate 1 is to unify the reference and fix all components such as the stacking backrest and support the workpiece, and the bottom is equipped with wear-resistant strips suitable for conveying and circulating on the speed chain or smooth strip.
[0027] A set of positioning and fixing supports 2 includes two relative positioning and fixing supports 2, and the angles of the positioning and fixing supports 2 are both right angles.
[0028] The function of the positioning and fixing support 2 is to limit the three degrees of freedom of workpieces such as bipolar plates, membrane electrode MEA and single cells.
[0029] A movable bottom plate guide rod 4 is passed through the front and back sides of the top of the movable bottom plate 3 , and a limiting piece 7 is provided on the top of the movable bottom plate guide rod 4 .
[0030] The function of the movable base plate 3 is first to support the workpiece, and secondly it can rely on another power device at the bottom to carry the workpiece up and down.
[0031] A hole is opened in the middle of the top of the movable base plate 3, and square openings are opened on both sides of the top of the movable base plate 3. The front and back sides of the top of the reference base plate 1 are bolted with handles 6, and the front and back sides of the bottom of the reference base plate 1 are bolted with tray guide bearings 5, which are deep groove ball bearings.
[0032] The function of the movable base plate guide rod 4 is to serve as a guide rod when the movable base plate 3 moves up and down, and to assist in controlling the moving direction of the movable base plate 3. The function of the pallet guide bearing 5 is to prevent the pallet from being hard-worn with the guide devices on both sides when manually pushing and pulling the pallet to load and unload materials. The bearing is added to turn it into rolling friction to reduce friction, thereby achieving the purpose of saving effort and extending the service life of the pallet.
[0033] The design of the positioning support 2 balances convenience during manual loading and unloading while ensuring initial accuracy during pick-up and placement at the production line end. The design of the movable base 3, combined with the lifting mechanism at its bottom, ensures consistent height positioning during each loading and unloading operation. The movable base 3 has two openings on its left and right sides, with photoelectric sensors installed directly below these openings to detect the presence of material on the movable base. The design of the movable base guide rods 4 ensures the positional accuracy of the movable base 3 during its upward and downward movement, thereby ensuring precise workpiece loading and unloading. It is simple to install, inexpensive, and highly effective. Specific embodiment two:
[0035] Reference Figure 1-4 When assembling a pallet, first place the reference base plate 1 horizontally on the workbench, ensuring its bottom is flat. Next, determine the installation positions for the positioning and fixing supports 2 on the front and back of the top of the reference base plate 1 and securely bolt them to the reference base plate 1. During installation, ensure that the two positioning and fixing supports in a set of positions are at right angles to each other and are accurately positioned to effectively constrain the three degrees of freedom of the workpieces, such as the bipolar plates, membrane electrode, and single cells.
[0036] Place the movable base plate 3 in the middle of the top of the reference base plate 1 so that it is located in the middle of the positioning and fixing backrest 2. Then, insert the movable base plate guide rod 4 on the front and back of the top of the movable base plate 3, and install the limit plate 7 on the top of the guide rod 4 to prevent the movable base plate 3 from detaching from the guide rod 4 during the up and down movement.
[0037] A hole is provided in the middle of the top of the movable base plate 3, and square openings are provided on both sides of the top of the movable base plate 3 to facilitate connection with other equipment or tools. At the same time, handles 6 are installed on the front and back of the top of the reference base plate 1 to facilitate manual handling of the pallet.
[0038] Finally, install the tray guide bearings 5 on the front and back sides of the bottom of the base plate 1. Ensure that the tray guide bearings 5 are firmly installed. The installation method of deep groove ball bearings can effectively prevent the tray from grinding against the guide devices on both sides, reduce friction, and achieve the purpose of saving labor and extending the service life of the tray.
[0039] The specific process when using it is as follows:
[0040] First of all, the present invention is used in an automated production line. The three components of bipolar plates, membrane electrodes and single cells are manually placed on a tray in a certain direction, and are positioned using a positioning fixed backer 2 to ensure that the components are accurately positioned. When the components need to be placed on the movable base plate 3, the lifting electric cylinder at the bottom is started to lift the movable base plate 3 to a suitable height, which is convenient for the robot to automatically grab and place the components. In the process of placing the components, the photoelectric sensor installed below the openings on the left and right sides of the movable base plate 3 will detect whether there is material on the movable base plate 3 to determine whether the material needs to be replenished. If no material is detected, the loading and unloading mechanisms will not come over to pick up the material, and the system will issue an alarm.
[0041] When parts need to be removed from the pallet, the electric lifting cylinder at the bottom is activated to raise the movable base plate 3 to the appropriate height, allowing the gripping equipment at the production line to retrieve the parts. The positioning and fixing of the support 2 during the gripping process ensures initial accuracy during gripping and placing. Furthermore, the design of the movable base plate guide rods 4 ensures the positional accuracy of the movable base plate 3 during its up and down movement, thereby ensuring precision when picking and placing workpieces.
[0042] When the pallet is transported on a double-speed chain or smooth bar during transportation, the wear-resistant strips on the bottom of the base plate 1 can reduce friction and ensure the stability of the pallet during transportation. At the same time, the rolling friction design of the pallet guide bearing 5 also reduces the friction when manually pushing and pulling the pallet to load and unload materials, saving effort and extending the service life of the pallet.
[0043] In summary:
[0044] 1. When assembling the pallet in this equipment, first place the reference base plate 1 horizontally on the workbench, ensuring its bottom is flat. Next, determine the installation positions of the positioning and fixing supports 2 on the front and back of the top of the reference base plate 1, and use bolts to securely attach the positioning and fixing supports 2 to the reference base plate 1. During installation, ensure that the two positioning and fixing supports in a set of two are at right angles to each other and are accurately installed to ensure that the three degrees of freedom of the workpieces such as the bipolar plates, membrane electrode, and single cells are effectively restricted.
[0045] Place the movable base plate 3 in the middle of the top of the reference base plate 1 so that it is located in the middle of the positioning and fixing backrest 2. Then, insert the movable base plate guide rod 4 on the front and back of the top of the movable base plate 3, and install the limit plate 7 on the top of the guide rod 4 to prevent the movable base plate 3 from detaching from the guide rod 4 during the up and down movement.
[0046] A hole is provided in the middle of the top of the movable base plate 3, and square openings are provided on both sides of the top of the movable base plate 3 to facilitate connection with other equipment or tools. At the same time, handles 6 are installed on the front and back of the top of the reference base plate 1 to facilitate manual handling of the pallet.
[0047] Finally, install the tray guide bearings 5 on the front and back sides of the bottom of the base plate 1. Ensure that the tray guide bearings 5 are firmly installed. The installation method of deep groove ball bearings can effectively prevent the tray from grinding against the guide devices on both sides, reduce friction, and achieve the purpose of saving labor and extending the service life of the tray.
[0048] 2. Manually place the three components of bipolar plates, membrane electrodes and single cells on the tray in a certain direction, and use the positioning fixed backer 2 to position them to ensure the accurate position of the components. When the components need to be placed on the movable bottom plate 3, start the lifting cylinder at the bottom to lift the movable bottom plate 3 to a suitable height to facilitate the operator to place the components. During the placement of the components, the photoelectric sensor installed below the openings on the left and right sides of the movable bottom plate 3 will detect the presence of materials on the movable bottom plate 3 to ensure the accurate placement of the components.
[0049] When parts need to be removed from the pallet, the electric lifting cylinder at the bottom is activated to raise the movable base plate 3 to the appropriate height, making it easier for operators or gripping equipment at the production line to retrieve the parts. When the gripping equipment at the production line retrieves the parts, the design of the fixed support 2 ensures the initial accuracy of the gripping and placing of the parts at the production line. At the same time, the design of the movable base plate guide rod 4 ensures the position accuracy of the movable base plate 3 during its up and down movement, thereby ensuring the accuracy of picking and placing the workpiece.
[0050] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.
[0051] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. A material loading and unloading tray with a movable bottom plate for use in a hydrogen energy stack production line, comprising a reference bottom plate (1), a positioning and fixing backer (2), a movable bottom plate (3), a movable bottom plate guide rod (4) and a tray guide bearing (5), characterized in that: A movable base plate (3) is installed in the middle of the top of the reference base plate (1), and two groups of positioning and fixing backrests (2) are bolted to the front and back of the top of the reference base plate (1), and tray guide bearings (5) are bolted to the front and back of the bottom of the reference base plate (1). The movable base plate (3) is located in the middle of the positioning and fixing backrests (2), and one group of the positioning and fixing backrests (2) contains two relative positioning and fixing backrests (2). The front and back of the top of the movable base plate (3) are penetrated by movable base plate guide rods (4).
2. The material loading and unloading tray with a movable bottom plate used in a hydrogen energy stack production line according to claim 1 is characterized in that: The angles of the positioning and fixing supports (2) are all right angles.
3. The material loading and unloading tray with a movable bottom plate used in a hydrogen energy stack production line according to claim 1 is characterized in that: A limiting piece (7) is provided on the top of the movable bottom plate guide rod (4).
4. The material loading and unloading tray with a movable bottom plate used in a hydrogen energy stack production line according to claim 1 is characterized in that: A hole is provided in the middle of the top of the movable bottom plate (3), and square openings are provided on both sides of the top of the movable bottom plate (3). Photoelectric sensors are installed directly below the square openings on both sides of the top of the movable bottom plate (3).
5. The material loading and unloading tray with a movable bottom plate used in a hydrogen energy stack production line according to claim 1 is characterized in that: The front and back sides of the top of the reference base plate (1) are both bolted with handles (6).
6. The material loading and unloading tray with a movable bottom plate used in a hydrogen energy stack production line according to claim 5 is characterized by: The tray guide bearing (5) is a deep groove ball bearing.