Freezer door assembly station
By designing a left positioning mechanism and an electric linear module-driven freezer door assembly workbench, the problems of inaccurate positioning and cumbersome operation in the existing technology have been solved, achieving high precision, smooth compression, and flexible adjustment of the freezer door, thus improving assembly efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU JINYIAN MASCH EQUIP CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-09
AI Technical Summary
The existing freezer sliding door assembly workbench suffers from problems such as inaccurate positioning, uneven compression, and cumbersome operation, making it difficult to meet the assembly needs of freezer sliding doors of different sizes.
A freezer sliding door assembly workbench was designed, including a left positioning mechanism and a right positioning mechanism. It uses an electric linear module for extrusion drive and is equipped with a middle clamping mechanism to ensure the alignment accuracy of the left frame, right frame and top and bottom frames, and to adapt to freezer sliding doors of different specifications.
It improves assembly precision and efficiency, enables precise adjustment and smooth pressing of freezer sliding doors of different sizes, and simplifies the operation process.
Smart Images

Figure CN224334408U_ABST
Abstract
Description
Technical fields:
[0001] This utility model relates to the field of refrigerator sliding door assembly technology, specifically to a refrigerator sliding door assembly workbench. Background technology:
[0002] Freezer sliding doors are typically composed of transparent glass and a frame (such as...) Figure 4 As shown), the entire frame consists of a top frame and a bottom frame in the middle, a left frame on the left, and a right frame on the right. When assembling the freezer sliding door, the top frame, bottom frame, left frame, and right frame are first installed on the transparent glass. However, at this point, there is a gap between the left frame and the top and bottom frames, and also a gap between the right frame and the top and bottom frames (as shown). Figure 5 As shown in the figure, during assembly, glue needs to be applied to the gaps first, and then the left and right frames are pressed towards the center and connected to the top and bottom frames by squeezing.
[0003] Existing technologies typically employ simple workbenches for assembly, with structures such as... Figure 6 As shown, the assembly workbench includes a worktable with limiting blocks, and the pressing is driven by a cylinder. While the existing workbench can perform assembly, it has several operational problems: first, due to the lack of precise positioning during pressing, workers typically need to use a top plate for positioning assistance; second, the cylinder-driven pressing action has a large impact, making it difficult to evenly press the joints, requiring workers to strike the edges of the joints with the top plate; and third, when processing freezer sliding doors of different lengths or widths, many components need to be disassembled and repositioned to meet dimensional requirements, making the operation relatively cumbersome. Therefore, it is necessary to optimize and improve the existing assembly workbench to enhance assembly accuracy and efficiency.
[0004] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content:
[0005] The purpose of this utility model is to solve the problems existing in the prior art and provide a freezer sliding door assembly workbench with advantages such as reasonable structural design, accurate positioning, convenient adjustment, high assembly precision, and high assembly efficiency.
[0006] This utility model achieves the above objectives by adopting the following technical solutions:
[0007] A freezer sliding door assembly workbench includes a frame. A left positioning mechanism and a right positioning mechanism are horizontally spaced at the upper end of the frame. A guide rail is horizontally provided at the upper end of the frame. The left positioning mechanism is fixedly mounted at one end of the frame, and the right positioning mechanism is slidably mounted on the guide rail. An electric linear module for driving the right positioning mechanism to slide is provided on the frame. The left and right positioning mechanisms have the same structure, including a base plate. Two stops are vertically spaced at the base plate, and two positioning cylinders are also vertically spaced at the base plate. Positioning plates are provided on the positioning cylinders.
[0008] The guide rail is provided with an intermediate pressing mechanism, which includes a slide plate. The lower end of the slide plate is mounted on the guide rail via a slider. The upper end of the slide plate is provided with two L-shaped seats spaced longitudinally. The L-shaped seats are provided with cylinder brackets. The cylinder brackets are provided with pressing cylinders. The pressing cylinders are provided with pressing blocks.
[0009] The L-shaped seat has a vertically shaped hole A, and a screw A is provided in the hole A. The screw A passes through the hole A to fix the cylinder bracket to the L-shaped seat.
[0010] The base plate is provided with a stop bar, and the stop block is positioned on the stop bar.
[0011] The stop block has a longitudinally shaped hole B, and a screw B is provided in the hole B. The screw B passes through the hole B to install the stop block on the base plate.
[0012] The electric linear module includes a motor mount mounted on a frame, a reducer mounted on the motor mount, a servo motor mounted at the input end of the reducer, and a lead screw mounted at the output end via a coupling. The other end of the lead screw is rotatably mounted on the frame via a bearing with a seat. A lead screw nut seat is mounted on the base plate of the right positioning mechanism, and a lead screw nut is mounted on the lead screw.
[0013] Tool boxes are provided at both ends of the base plate of the right positioning mechanism.
[0014] The right positioning mechanism has hair dryer placement boxes at both ends of the baffle.
[0015] The present invention, by adopting the above-described structure, can bring the following beneficial effects:
[0016] (1) By designing left and right positioning mechanisms, the longitudinal positioning of the freezer sliding door can be achieved. Under the premise of positioning, the lateral extrusion accuracy can be significantly improved, ensuring the alignment accuracy of the left and right side frames with the upper and lower side frames, thereby improving the assembly accuracy. (2) By using an electric linear module for extrusion drive, not only can it be precisely adjusted according to the size of the freezer sliding door, but the extrusion feeding process is also relatively stable. (3) By designing a middle clamping mechanism, the upper middle part of the bow-shaped freezer sliding door can be clamped during assembly, thereby ensuring accurate and reliable extrusion assembly. Attached image description:
[0017] Figure 1 This is a schematic diagram of the assembly workbench of this utility model;
[0018] Figure 2 This is a structural schematic diagram of the assembly workbench of this utility model from another perspective;
[0019] Figure 3 This is a schematic diagram of the structure of the refrigerator sliding door of this utility model installed on the assembly workbench;
[0020] Figure 4 This is a structural diagram of an existing freezer sliding door;
[0021] Figure 5 A structural diagram of an existing freezer sliding door before assembly;
[0022] Figure 6 This is a structural diagram of an existing assembly workbench;
[0023] In the diagram, 1. Frame, 2. Left positioning mechanism, 201. Base plate, 202. Stop block, 203. Positioning cylinder, 204. Positioning plate, 205. Stop bar, 206. Waist-shaped hole B, 207. Screw B, 3. Right positioning mechanism, 4. Guide rail, 5. Electric linear module, 501. Motor base, 502. Reducer, 503. Servo motor, 504. Coupling, 505. Lead screw, 506. Lead screw nut seat, 507. Lead screw nut, 6. Middle Inter-clamping mechanism, 601, slide plate, 602, slider, 603, L-shaped seat, 604, cylinder bracket, 605, clamping cylinder, 606, clamping block, 607, oblong hole A, 608, screw A, 7, tool box, 8, hair dryer storage box, 9, freezer sliding door, 901, transparent glass, 902, upper frame, 903, lower frame, 904, left frame, 905, right frame, 906, gap, 10, existing assembly workbench. Detailed implementation method:
[0024] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.
[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.
[0026] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.
[0027] Furthermore, the terms “upper end”, “lower end”, “horizontal”, “vertical”, “A”, “B”, etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the location of the indicated technical feature.
[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "provided with," "set up," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0029] like Figures 1-3 As shown, the freezer sliding door assembly workbench includes a frame 1. A left positioning mechanism 2 and a right positioning mechanism 3 are horizontally spaced at the upper end of the frame 1. A guide rail 4 is horizontally positioned at the upper end of the frame 1. The left positioning mechanism 2 is fixedly mounted at one end of the frame 1, and the right positioning mechanism 3 is slidably mounted on the guide rail 4. An electric linear module 5 for driving the right positioning mechanism 3 to slide is provided on the frame 1. The left positioning mechanism 2 and the right positioning mechanism 3 have the same structure, including a base plate 201. Two stops 202 are vertically spaced on the base plate 201, and two positioning cylinders 203 are also vertically spaced on the base plate 201. Positioning plates 204 are provided on the positioning cylinders 203. Compared with the existing assembly workbench 10, this application, through the design of the left positioning mechanism 2 and the right positioning mechanism 3, can achieve longitudinal positioning of the freezer sliding door 9. Under the premise of positioning, it can significantly improve the compression accuracy when performing lateral compression, ensuring the alignment accuracy of the left frame 904, right frame 905 with the upper frame 902 and lower frame 903, thereby improving the assembly accuracy. By using an electric linear module 5 for extrusion drive, not only can the size of the freezer sliding door 9 be precisely adjusted, but the extrusion feeding process is also relatively stable.
[0030] The guide rail 4 is equipped with an intermediate pressing mechanism 6, which includes a sliding plate 601. The lower end of the sliding plate 601 is mounted on the guide rail 4 via a slider 602. The upper end of the sliding plate 601 is longitudinally spaced with two L-shaped seats 603. The L-shaped seats 603 are equipped with cylinder supports 604, and the cylinder supports 604 are equipped with pressing cylinders 605. The pressing cylinders 605 are equipped with pressing blocks 606. In actual processing, it is often necessary to assemble bow-shaped refrigerator sliding doors. Compared with flat refrigerator sliding doors, bow-shaped refrigerator sliding doors are more prone to movement during assembly. Therefore, the intermediate pressing mechanism 6 is specially designed to press the upper middle part of the bow-shaped refrigerator sliding door during assembly, thereby ensuring accurate and reliable compression assembly.
[0031] The L-shaped base 603 has a vertically shaped hole A607, and a screw A608 is installed on the hole A607. The screw A608 passes through the hole A607 to fix the cylinder bracket 604 to the L-shaped base 603. By designing the hole A607 and the screw A608, the height of the cylinder bracket 604 and the clamping cylinder 605 on it can be adjusted, thereby meeting the clamping requirements of different sizes of arched refrigerator sliding doors.
[0032] The base plate 201 is provided with a stop bar 205, and the stop block 202 is positioned on the stop bar 205. By designing the stop bar 205, a positioning reference and support (equivalent to a backing plate) can be provided, which facilitates the quick and accurate installation of the stop block 202.
[0033] The stop block 202 has a longitudinally shaped hole B206, and a screw B207 is provided on the hole B206. The screw B207 passes through the hole B206 to install the stop block 202 on the base plate 201. This facilitates the adjustment of the position of the stop block 202 and further expands its application range.
[0034] The electric linear module 5 includes a motor mount 501 mounted on a frame 1. A reducer 502 is mounted on the motor mount 501. A servo motor 503 is mounted at the input end of the reducer 502, and its output end is connected to a lead screw 505 via a coupling 504. The other end of the lead screw 505 is rotatably mounted on the frame 1 via a bearing. A lead screw nut seat 506 is mounted on the base plate 201 of the right positioning mechanism 3. A lead screw nut 507 is mounted on the lead screw 505. The specific structure of the electric linear module 5 is given, enabling precise control of the extrusion assembly.
[0035] Tool boxes 7 are provided at both ends of the base plate 201 of the right positioning mechanism 3. The tool boxes 7 are designed to facilitate the placement of tools used in assembly, such as glue, cleaning cloths, etc.
[0036] The right positioning mechanism 3 has a hair dryer placement box 8 at each end of the baffle 205. The hair dryer placement box 8 is designed to facilitate the placement of the hair dryer, which is mainly used to quickly dry the glue.
[0037] Instructions for use of the freezer sliding door assembly workbench in this application:
[0038] In actual use, an electronic control unit is also required. This part is existing technology and can be ordered directly. To facilitate control of the cylinders, electric linear module 5, etc., a foot switch or manual switch can be installed for opening and closing.
[0039] When the freezer door 9 is a flat structure, the intermediate pressing mechanism 6 is not required. First, place the freezer door 9 on the left positioning mechanism 2 and the right positioning mechanism 3. The left end of the freezer door 9 is positioned on the stop block 202. Activate the positioning cylinder 203. The four positioning cylinders 203 extend towards the center and position the freezer door 9 through the positioning plate 204. Then, the worker applies glue to the gaps between the left frame 904 and the upper frame 902 and the lower frame 903, as well as the gap 906 between the right frame 905 and the upper frame 902 and the lower frame 903 (usually two workers are used, one on each side). Finally, activate the electric linear module 5 to drive the right positioning mechanism 3 to slide towards the left positioning mechanism 2 for compression and alignment assembly, so that the left frame 904 is aligned with the upper frame 902 and the lower frame 903, and the right frame 905 is aligned with the upper frame 902 and the lower frame 903. Then, use a hair dryer to dry the glue to complete the assembly. The assembled freezer door can then be removed.
[0040] When the freezer sliding door 9 has an arc-shaped structure, an intermediate pressing mechanism 6 is required. During positioning, the pressing cylinder 602 needs to be activated. The pressing cylinder 605 extends the pressing block 603 to press the upper part of the transparent glass 901 (arc-shaped). Since the intermediate pressing mechanism 6 is slidably set on the guide rail 4, it will move together with the transparent glass 901, thus not affecting the squeezing and alignment action.
[0041] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.
[0042] Any aspects of this utility model not described in detail are known to those skilled in the art.
Claims
1. A freezer sliding door assembly workbench, characterized in that, The device includes a frame, with a left positioning mechanism and a right positioning mechanism horizontally spaced at the upper end of the frame. A guide rail is horizontally provided at the upper end of the frame. The left positioning mechanism is fixedly mounted at one end of the frame, and the right positioning mechanism is slidably mounted on the guide rail. An electric linear module for driving the right positioning mechanism to slide is provided on the frame. The left and right positioning mechanisms have the same structure, including a base plate. Two stops are vertically spaced on the base plate, and two positioning cylinders are also vertically spaced on the base plate. Positioning plates are provided on the positioning cylinders.
2. The freezer sliding door assembly workbench according to claim 1, characterized in that, The guide rail is provided with an intermediate pressing mechanism, which includes a slide plate. The lower end of the slide plate is mounted on the guide rail via a slider. The upper end of the slide plate is provided with two L-shaped seats spaced longitudinally. The L-shaped seats are provided with cylinder brackets. The cylinder brackets are provided with pressing cylinders. The pressing cylinders are provided with pressing blocks.
3. The freezer sliding door assembly workbench according to claim 2, characterized in that, The L-shaped seat has a vertically shaped hole A, and a screw A is provided in the hole A. The screw A passes through the hole A to fix the cylinder bracket to the L-shaped seat.
4. The freezer sliding door assembly workbench according to claim 3, characterized in that, The base plate is provided with a stop bar, and the stop block is positioned on the stop bar.
5. The freezer sliding door assembly workbench according to claim 4, characterized in that, The stop block has a longitudinally shaped hole B, and a screw B is provided in the hole B. The screw B passes through the hole B to install the stop block on the base plate.
6. The freezer sliding door assembly workbench according to claim 5, characterized in that, The electric linear module includes a motor mount mounted on a frame, a reducer mounted on the motor mount, a servo motor mounted at the input end of the reducer, and a lead screw mounted at the output end via a coupling. The other end of the lead screw is rotatably mounted on the frame via a bearing with a seat. A lead screw nut seat is mounted on the base plate of the right positioning mechanism, and a lead screw nut is mounted on the lead screw.
7. The freezer sliding door assembly workbench according to claim 6, characterized in that, Tool boxes are provided at both ends of the base plate of the right positioning mechanism.
8. The freezer sliding door assembly workbench according to claim 7, characterized in that, The right positioning mechanism has hair dryer placement boxes at both ends of the baffle.