Refrigerator door stand column assembling equipment

Abstract

The utility model relates to the field of refrigerator door body stand columns, in particular to refrigerator door stand column assembling equipment, and aims to solve the problem that in the prior art, an integrated pressing plate is adopted for pressing, so that the pressing precision is low, the refrigerator door stand column assembling equipment comprises a rack, a jig is arranged on the rack, and a plurality of sub-pressing plates are arranged above the jig in a lifting mode; a plurality of driving parts are mounted on the rack, and each driving part is connected with one sub pressing plate; a pressing piece is arranged on the sub-pressing plate, and the pressing piece is detachably connected with the sub-pressing plate. The vertical column has the effect of improving the buckling accuracy between the clamping jaws and the buckles in the vertical column.

Description

Technical Field

[0001] This application relates to the field of refrigerator door body columns, and particularly to a refrigerator door column assembly device. Background Art

[0002] The refrigerator door body includes an outer door panel and a rectangular frame structure for fixing the outer door panel. The rectangular frame structure is composed of vertically arranged columns and horizontally arranged end caps. The refrigerator columns are designed in a split form, including an upper cover plate and a lower cover plate. The upper cover plate and the lower cover plate are respectively injection molded, and a metal reinforcing strip needs to be installed on the upper cover plate or the lower cover plate to increase the strength of the column. The upper cover plate and the lower cover plate are snap-connected through a plurality of claws. During production, the operator snaps the upper cover plate onto the lower cover plate.

[0003] Since there is a certain difficulty in the snap connection between the snap and the claw, the worker needs to forcefully snap the snap of the upper cover into the claw. In this process, the worker also needs to use a small hammer to strike each snap, which is labor-consuming. The prior art designs an automatic assembly device that presses by setting a single cylinder to drive a pressing plate. However, due to the irregular distribution of the claws on the refrigerator column and the different distributions of the claws on different models of refrigerator columns, the force applied by the pressing plate in the prior art to each claw is uneven when pressing, resulting in some claws not being snap-connected to the snaps, and the accuracy of the pressing and snapping is relatively low, so it needs to be improved. Utility Model Content

[0004] In order to improve the accuracy of the snap connection between the claws inside the column, this application provides a refrigerator door column assembly device.

[0005] A refrigerator door column assembly device provided by this application adopts the following technical solution:

[0006] A refrigerator door column assembly device includes a frame. A fixture is arranged on the frame. A plurality of sub-pressing plates are arranged above the fixture in a lifting manner. A plurality of driving members are installed on the frame, and each driving member is respectively connected to a sub-pressing plate; a pressing member is arranged on the sub-pressing plate, and the pressing member is detachably connected to the sub-pressing plate.

[0007] By adopting the above technical solution, a pressing member adapted to the workpiece to be produced is selected. Each driving member independently controls the pressing member connected thereto to press the claws in the corresponding area on the workpiece. The claws and snaps are installed by driving the pressing members adapted to different regions independently by the driving members, which improves the accuracy of the claw snap connection and ensures that each claw is snap-connected to the snap in place. Compared with the prior art that uses a whole pressing plate for pressing, the situation of workpiece damage caused by uneven force is reduced.

[0008] Optionally, the pressing part includes a tooling plate and a plurality of pressing blocks, wherein the tooling plate is detachably connected to the sub-pressing plate, and the pressing blocks are mounted on the tooling plate; the arrangement of the plurality of pressing blocks matches the arrangement of the claws, and the contact surface between the pressing blocks and the workpiece is provided with an arc surface and a protrusion, wherein the protrusion is correspondingly arranged directly above the claw position of the workpiece, and the arc surface is adapted to the shape of the workpiece.

[0009] By adopting the above technical solution, multiple types of pressing pieces are installed in advance according to the shape of the workpiece, and during production, appropriate pressing pieces are installed on the sub-pressing plate as needed. The operator installs the tooling plate on the sub-pressing plate, and the protrusion on the pressing block faces the claw. The driving member drives the pressing block down through the sub-pressing plate and the tooling plate until the protrusion on the pressing block contacts the top wall of the workpiece, and directly applies pressure to the claw until the claw is fastened and fixed with the buckle. By setting a matching pressing block to accurately press the buckle position, the accuracy of the claw engagement is improved.

[0010] Optionally, a plurality of mounting columns are installed on the tooling plate, mounting holes are provided on the sub-pressing plate corresponding to the mounting columns, a notch is provided on the mounting column, a mounting plate is provided on the sub-pressing plate, the mounting plate can cover the mounting hole, and the mounting plate can be stuck in the notch.

[0011] By adopting the above technical solution, when the installation piece is clamped in the notch, the edge of the installation piece is placed on the top wall of the sub-pressing plate around the installation hole, and the installation column is difficult to move.

[0012] Optionally, the mounting plate is rotatably connected to the sub-pressure plate, the bottom wall of the mounting plate is slidably matched with the top wall of the sub-pressure plate, an arc-shaped hole is provided on the mounting plate, the arc-shaped hole is adapted to the notch of the mounting column, and the diameter of the mounting column is larger than the inner diameter of the arc-shaped hole.

[0013] By adopting the above technical solution, the operator can directly move the mounting plate and rotate the mounting plate in a direction away from the mounting hole to expose the mounting hole. When the top end of the mounting column protrudes from the top wall of the sub-pressing plate, the opening of the arc-shaped hole on the mounting plate is aligned with the mounting column. The mounting plate is controlled to rotate, and the mounting column moves relative to the mounting plate along the arc-shaped hole, so that the mounting plate is stuck in the notch.

[0014] Optionally, the shape of the mounting piece is a sector, and when the mounting piece moves, the edge of the mounting piece is always located within the projection range of the sub-pressing plate.

[0015] By adopting the above technical solution, the installation piece moves within the range of the top wall of the sub-pressing plate, reducing the possibility of the installation piece protruding from the sub-pressing plate and causing damage to adjacent components, thereby improving practicality.

[0016] Optionally, teeth are provided on the side walls of the mounting pieces, and a gear is correspondingly arranged beside each mounting piece and meshes with it. The gear is rotatably connected to the sub-pressure plate. A rack is arranged between two adjacent gears and meshes with them. A cavity is arranged inside the sub-pressure plate, and the rack is slidably arranged in the cavity. A plurality of the gears are linked through a plurality of racks.

[0017] Optionally, a pull rod is mounted on one of the racks. A waist-shaped through hole is formed in the sub-pressure plate, and the waist-shaped through hole communicates with the cavity. The end of the pull rod away from the rack extends out of the sub-pressure plate through the waist-shaped through hole, and the pull rod can move along the length direction of the waist-shaped through hole.

[0018] Optionally, a compression spring is arranged on the rack. One end of the compression spring is connected to the rack, and the other end is connected to the inner wall of the cavity.

[0019] By adopting the above technical solution, when installing the pressing piece, an operator controls the tooling plate to approach the sub-pressure plate with one hand, and at this time, the mounting piece covers the mounting hole. The operator pulls the pull rod with the other hand to drive the rack connected to it to move, and the compression spring is compressed. The rack drives all the mounting pieces to rotate through gear transmission to expose the mounting hole. Until the mounting post reaches the designated position, the operator releases the pull rod, and the compression spring pushes the rack to reset. The rack drives all the mounting pieces to rotate back through gear transmission. The part of the mounting post with a notch enters the arc-shaped hole, and the top end of the mounting post is restricted by the mounting piece and is difficult to move downward under the action of gravity, and the tooling plate and the sub-pressure plate are relatively fixed. When the pressing piece needs to be replaced, the operator holds the tooling plate with one hand and pulls the pull rod with the other hand to make all the mounting pieces rotate away from the mounting hole, the mounting post gets out of the control of the mounting piece and exits from the mounting hole, and the connection between the tooling plate and the sub-pressure plate is released. The rotation of a plurality of mounting pieces is linked through gears and racks to realize the quick disassembly and assembly of the pressing piece; the production efficiency of various types of workpieces is improved by improving the disassembly and assembly efficiency of the tooling plate. The operation process is simple and convenient for the operator to use.

[0020] Optionally, a buffer is further arranged between the tooling plate and the sub-pressure plate. One end of the buffer is fixedly connected to the tooling plate, and a groove is arranged on the bottom wall of the sub-pressure plate. The end of the buffer away from the tooling plate is clamped in the groove.

[0021] By adopting the above technical solution, when installing the pressing member, the buffer member has been pre-installed on the tooling plate. When the installation post is fixed by the installation piece, the top end of the buffer member is clamped in the groove and is difficult to move in the horizontal direction, and the buffer member begins to be compressed. When the pressing block contacts the workpiece, as the sub-pressing plate descends, a relative displacement first occurs between the tooling plate and the sub-pressing plate, and the buffer member is continuously compressed until the compression limit is reached, and then the tooling plate and the sub-pressing plate descend synchronously. Through the elastic connection between the tooling plate and the sub-pressing plate, elastic contact between the pressing block and the workpiece is achieved, avoiding the possibility of collision damage between the pressing block and the workpiece caused by the too-fast descent of the sub-pressing plate, and improving the practicability of the equipment.

[0022] Optionally, a wing plate is provided at the edge of the side wall of the sub-pressing plate. The wing plate is integrally formed with the sub-pressing plate. The wing plate is sleeved outside the side wall of the tooling plate, and the inner side wall of the wing plate is attached to the side wall of the tooling plate.

[0023] By adopting the above technical solution, when installing the pressing member, an operator controls the tooling plate to approach the sub-pressing plate with one hand, aligns the edge of the tooling plate with the wing plate, and moves upward along the inner wall of the wing plate, realizing the rapid positioning of the tooling plate and the sub-pressing plate, and assisting the installation post to align with the installation hole. And it can improve the installation stability of the tooling plate and further improve the accuracy of the pressing block pressing the claw.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. Select a suitable pressing member according to the workpiece to be produced. Each driving member independently controls the pressing member connected thereto to press the claws in the corresponding area on the workpiece. The independently driven driving member drives the area-adapted pressing member to install the claws and buckles, improving the accuracy of the claw buckling and ensuring that each claw is buckled with the buckle in place. Compared with the prior art of using a whole pressing plate for pressing, the situation of workpiece damage caused by uneven force is reduced;

[0026] 2. When installing the pressing piece, an operator controls the tooling plate to approach the sub-pressing plate with one hand, and at this time the installation piece covers the installation hole. The operator pulls the pull rod with the other hand to drive the rack connected thereto to move, and the compression spring is compressed; the rack drives all the installation pieces to rotate through gear transmission to expose the installation hole. Until the installation column reaches the specified position, the operator releases the pull rod, and the compression spring pushes the rack to reset. The rack drives all the installation pieces to rotate back through gear transmission. The part of the installation column with a notch enters the arc-shaped hole, and the top of the installation column is restricted by the installation piece and is difficult to move, and the tooling plate and the sub-pressing plate are relatively fixed. When the pressing piece needs to be replaced, the operator holds the tooling plate with one hand and pulls the pull rod with the other hand to make all the installation pieces rotate away from the installation hole. The installation column is disengaged from the control of the installation piece and exits from the installation hole, releasing the connection between the tooling plate and the sub-pressing plate. The rotation of multiple installation pieces is realized by the linkage of the gear and the rack, so as to realize the quick disassembly and assembly of the pressing piece; the production efficiency of various types of workpieces is improved by improving the disassembly and assembly efficiency of the tooling plate. The operation process is simple and convenient for the operator to use;

[0027] 3. When installing the pressing piece, the buffer piece has been installed on the tooling plate in advance. When the installation column is fixed by the installation piece, the top of the buffer piece is stuck in the groove and is difficult to move in the horizontal direction, and the buffer piece is just compressed. When the pressing block contacts the workpiece, with the descent of the sub-pressing plate, a relative displacement first occurs between the tooling plate and the sub-pressing plate, and the buffer piece is continuously compressed until the compression limit is reached, and the tooling plate and the sub-pressing plate descend synchronously. Through the elastic connection between the tooling plate and the sub-pressing plate, the elastic contact between the pressing block and the workpiece is realized, avoiding the possibility of collision damage between the pressing block and the workpiece caused by the too fast descent of the sub-pressing plate, and improving the practicability of the equipment. Description of the Drawings

[0028] Figure 1 is a schematic structural diagram of an assembly device for a refrigerator door column according to an embodiment of the present application.

[0029] Figure 2 is a schematic structural diagram of a pressing block according to an embodiment of the present application.

[0030] Figure 3 is a cross-sectional view of the sub-pressing plate and the tooling plate according to an embodiment of the present application.

[0031] Figure 4 is a schematic structural diagram of a gear and a rack according to an embodiment of the present application.

[0032] Description of reference numerals: 1, frame; 2, fixture; 3, driving member; 4, sub-pressure plate; 41, mounting hole; 42, wing plate; 43, cavity; 44, kidney-shaped through hole; 45, groove; 5, pressing member; 51, tooling plate; 52, pressing block; 521, protrusion; 522, arc surface; 53, mounting post; 531, notch; 6, mounting piece; 61, arc-shaped hole; 7, gear; 8, rack; 81, pull rod; 82, compression spring; 9, buffer member; 91, sleeve; 92, movable column; 93, buffer spring. Detailed implementation manners

[0033] The following further elaborates on this application in conjunction with the attached Figures 1-3 drawings.

[0034] An embodiment of this application discloses an assembly device for a refrigerator door column. Refer to Figure 1 , an assembly device for a refrigerator door column includes a frame 1 placed on the ground, and a fixture 2 for fixing workpieces is installed on the frame 1. A plurality of driving members 3 are installed on the frame 1, and a sub-pressure plate 4 is installed on each driving member 3. The driving member 3 independently drives the sub-pressure plate 4 to lift above the fixture 2. A pressing member 5 for pressing the workpiece is arranged on the sub-pressure plate 4, and the pressing member 5 is detachably connected to the sub-pressure plate 4.

[0035] Multiple types of pressing members 5 can be provided to adapt to the claws at different positions of the workpiece. The positions of the driving members 3 are arranged according to the shape of the workpiece. In this embodiment, the workpiece is a long strip-shaped refrigerator column. A total of four driving members 3 are arranged along the length direction of the workpiece, and the four pressing members 5 respectively correspond to four regions in the length direction of the workpiece. The driving member 3 is an inverted cylinder, the cylinder body of the cylinder is connected to the frame 1 by bolts, and the cylinder shaft is connected to the top wall of the sub-pressure plate 4 by bolts.

[0036] Select a suitable pressing member 5 according to the workpiece to be produced, install the pressing member 5 on the sub-pressure plate 4. After the equipment is debugged, the operator clamps the workpiece to be fixed in the fixture 2. Each driving member 3 independently controls the pressing member 5 connected thereto to press the claws in the corresponding area on the workpiece. The stroke of each driving member 3 can be independently controlled, or multiple driving members 3 can be set to start in the order from the edge to the middle. By driving the sub-region adapted pressing members 5 by independent driving members 3 to install the claws and buckles, the accuracy of the claw buckling is improved, ensuring that each claw is buckled in place with the buckle. Compared with the prior art that uses a whole pressing plate for pressing, the situation of workpiece damage caused by uneven force is reduced.

[0037] When the next workpiece to be produced is only partially different from the previous one, only one of the pressing members 5 can be replaced, improving the production efficiency.

[0038] Refer to Figure 1, the fixture 2 includes a plurality of positioning blocks, and the positioning blocks are connected to the frame 1 by bolts. In this embodiment, a total of six positioning blocks are provided according to the shape of the workpiece. The two rows of positioning blocks are respectively located on both sides of the workpiece, and the side wall of the workpiece is attached to the side wall of the positioning block, making it difficult for the workpiece to move by itself.

[0039] Referring to Figure 1 and Figure 2 , the pressing member 5 includes a tooling plate 51, and the tooling plate 51 is detachably connected to the sub-pressing plate 4. A plurality of pressing blocks 52 are provided on the bottom wall of the tooling plate 51 away from the sub-pressing plate 4, and the pressing blocks 52 are installed on the tooling plate 51 by bolts. The arrangement of the plurality of pressing blocks 52 matches the arrangement of the jaws. An arc surface 522 and a protrusion 521 are provided on the contact surface of the pressing block 52 with the workpiece. The protrusion 521 is correspondingly arranged directly above the jaw position of the workpiece, and the arc surface 522 is adapted to the shape of the workpiece. The material of the pressing block 52 is selected as a plastic material, and the surface of the pressing block 52 is smoothly arranged.

[0040] In this embodiment, six pressing blocks 52 are provided according to the jaw distribution in the corresponding area of the workpiece on each tooling plate 51, which are divided into two rows and are respectively located on both sides in the width direction of the workpiece. The arc surfaces 522 on the bottom walls of the two rows of pressing blocks 52 are concave and close to each other, and the protrusions 521 on the bottom walls of the two rows of pressing blocks 52 are located directly above the jaw positions at the edge of the workpiece.

[0041] Install a plurality of pressing members 5 of various models in advance according to the shape of the workpiece. During production, install the appropriate pressing member 5 on the sub-pressing plate 4 as needed. The operator installs the tooling plate 51 on the sub-pressing plate 4, and the protrusion 521 on the pressing block 52 is aligned with the jaw. Start the driving member 3, and the driving member 3 drives the sub-pressing plate 4 to descend. The sub-pressing plate 4 drives the pressing block 52 to descend through the tooling plate 51 until the protrusion 521 on the pressing block 52 contacts the top wall of the workpiece and directly applies pressure on the jaw until the jaw is fastened and fixed with the buckle. By setting the matching pressing block 52 to accurately press the buckle position, the accuracy of the jaw fastening is improved.

[0042] Referring to Figure 2 and Figure 3 , an annular wing plate 42 is provided at the edge of the side wall of the sub-pressing plate 4, and the wing plate 42 is integrally formed with the sub-pressing plate 4. When the top wall of the tooling plate 51 is attached to the bottom wall of the sub-pressing plate 4, the wing plate 42 is sleeved on the side wall of the tooling plate 51, and the inner side wall of the wing plate 42 is attached to the side wall of the tooling plate 51. The bottom wall of the wing plate 42 is flush with the midline in the thickness direction of the tooling plate 51.

[0043] Referring to Figure 3, a plurality of mounting posts 53 are mounted on the top wall of the tooling plate 51, and the mounting posts 53 are integrally formed with the tooling plate 51. Mounting holes 41 are provided on the sub-pressing plate 4 corresponding to the mounting posts 53, and the mounting holes 41 penetrate the bottom wall and the top wall of the sub-pressing plate 4. The peripheral wall of the mounting post 53 is slidably matched with the inner wall of the mounting hole 41. In this embodiment, four mounting posts 53 are provided in total according to the shape of the tooling plate 51, and are respectively distributed at four corners, and four mounting holes 41 are correspondingly provided on the sub-pressing plate 4.

[0044] The height of the mounting column 53 is greater than the thickness of the sub-pressing plate 4, and the top of the mounting column 53 passes through the mounting hole 41 protruding 521 on the top wall of the sub-pressing plate 4. A notch 531 is provided on the outer peripheral wall of the mounting column 53, which is an annular notch 531 in this embodiment. A mounting plate 6 is provided on the sub-pressing plate 4, and the mounting plate 6 is rotatably connected to the sub-pressing plate 4 through a rotating shaft. The mounting plate 6 is in the shape of a sector, and the mounting plate 6 rotates around the center of the sector as an axis; the bottom wall of the mounting plate 6 is slidably matched with the top wall of the sub-pressing plate 4, and the mounting plate 6 can cover the mounting hole 41. An arc hole 61 is provided on the mounting plate 6, and the arc hole 61 extends from the inside of the mounting plate 6 to the side wall of the mounting plate 6; the arc hole 61 is adapted to the notch 531 of the mounting column 53, and the diameter of the mounting column 53 is greater than the inner diameter of the arc hole 61, and the mounting plate 6 can be clamped in the notch 531 to fix the mounting column 53 on the sub-pressing plate 4. The central angle of the fan-shaped mounting piece 6 is an acute angle, and when the mounting piece 6 moves, its edge is always located within the projection range of the sub-pressing plate 4. The operator can directly manually move the mounting piece 6 to drive it to rotate.

[0045] The arc side wall of the mounting plate 6 is provided with teeth, and a gear 7 is provided correspondingly beside each mounting plate 6 to mesh with it, and the gear 7 is rotatably connected with the sub-pressing plate 4 through a rotating shaft. The rotating shaft of the mounting plate 6 is arranged outside the mounting hole 41, and the gear 7 is arranged on the side of the mounting hole 41 away from the rotating shaft of the mounting plate 6. The gear 7 is embedded in the sub-pressing plate 4, and the top protrusion 521 of the gear 7 meshes with the top wall of the sub-pressing plate 4 and the mounting plate 6.

[0046] Reference Figure 3 and Figure 4 , Figure 4 The sub-pressing plate 4 is hidden in the middle, and a cavity 43 is provided inside the sub-pressing plate 4. A rack 8 is provided between two adjacent gears 7, and the rack 8 is meshed with the bottom end of the gear 7. The rack 8 is slidably provided in the cavity 43. In this embodiment, a total of four gears 7 are provided, and the four gears 7 are linked by three racks 8. The three racks 8 are staggered in the height direction and do not interfere with each other. The rotation of one mounting piece 6 drives the other three mounting pieces 6 to rotate synchronously.

[0047] A kidney-shaped through hole 44 is formed in the top wall of the sub-pressure plate 4, and the kidney-shaped through hole 44 communicates with the cavity 43. A pull rod 81 is installed on one of the racks 8. The end of the pull rod 81 away from the rack 8 extends out of the sub-pressure plate 4 through the kidney-shaped through hole 44, and the pull rod 81 is integrally formed with the rack 8. For the convenience of operation by the operator, the pull rod 81 is arranged on the rack 8 located at the short side of the sub-pressure plate 4. A compression spring 82 is also arranged on the rack 8. One end of the compression spring 82 is adhesively connected to the rack 8, and the other end is adhesively connected to the inner wall of the cavity 43.

[0048] When installing the pressing member 5, the operator controls the tooling plate 51 to approach the sub-pressure plate 4 with one hand, aligns the edge of the tooling plate 51 with the wing plate 42, and moves it upward along the inner wall of the wing plate 42. At this time, the top end of the mounting post 53 is aligned with the mounting hole 41, and the mounting piece 6 covers the mounting hole 41. The operator pulls the pull rod 81 with the other hand to drive the rack 8 connected thereto to move, and the compression spring 82 is compressed; the rack 8 drives all the mounting pieces 6 to rotate through the gear 7 to expose the mounting hole 41. Continue to control the tooling plate 51 to move upward until the top end of the mounting post 53 protrudes from the top wall of the sub-pressure plate 4 at the protrusion 521. At this time, the notch 531 of the mounting post 53 is at the same height as the mounting piece 6, and the opening of the arc-shaped hole 61 on the side wall of the mounting piece 6 is aligned with the mounting post 53. The operator releases the pull rod 81, and the compression spring 82 pushes the rack 8 to reset. The rack 8 drives all the mounting pieces 6 to rotate back through the gear 7. The part of the mounting post 53 provided with the notch 531 enters the arc-shaped hole 61, and the mounting piece 6 covers the mounting hole 41 again. The mounting piece 6 is placed on the top wall of the sub-pressure plate 4 near the mounting hole 41; the top end of the mounting post 53 is restricted by the mounting piece 6 and is difficult to move downward under the action of gravity, and the tooling plate 51 and the sub-pressure plate 4 are relatively fixed.

[0049] When the pressing member 5 needs to be replaced, the operator holds the tooling plate 51 with one hand and pulls the pull rod 81 with the other hand to make all the mounting pieces 6 rotate away from the mounting hole 41. The mounting post 53 is released from the control of the mounting piece 6 and exits from the mounting hole 41, releasing the connection between the tooling plate 51 and the sub-pressure plate 4.

[0050] Realize the quick detachable connection between the tooling plate 51 and the sub-pressure plate 4, and improve the production efficiency of multiple types of workpieces by improving the disassembly and assembly efficiency of the tooling plate 51. By setting the wing plate 42, the quick positioning between the tooling plate 51 and the sub-pressure plate 4 is realized; setting the wing plate 42 and multiple positioning posts can improve the installation stability of the tooling plate 51 and further improve the accuracy of the pressing block 52 pressing the claw.

[0051] Refer to Figure 3 and Figure 4A buffer 9 is also provided between the tooling plate 51 and the sub-pressing plate 4. In the present embodiment, the buffer 9 comprises a sleeve 91, a movable column 92 and a buffer spring 93. The movable column 92 is slidably arranged in the sleeve 91. The buffer spring 93 is arranged between the movable column 92 and the sleeve 91. The two ends of the buffer spring 93 are respectively connected to the movable column 92 and the sleeve 91 by gluing. The sleeve 91 is connected to the top wall of the tooling plate 51 by bolts. A groove 45 is provided on the bottom wall of the sub-pressing plate 4. The top end of the movable column 92 away from the sleeve 91 can be clamped in the groove 45. The number of buffers 9 can be set to multiple. In the present embodiment, a total of four buffers 9 are provided. The connecting line of the four buffers 9 is a rectangle. The height of the annular notch 531 in the axial direction is greater than the thickness of the mounting plate 6.

[0052] When installing the pressing member 5, the buffer member 9 has been installed on the tooling plate 51 in advance, and the operator places the tooling plate 51 into the wing plate 42, with the top of the column aligned with the groove 45. When the mounting column 53 is fixed by the mounting plate 6, the top of the column is stuck in the groove 45, making it difficult to move in the horizontal direction, and the buffer spring 93 is compressed at the beginning. After the pressing block 52 contacts the workpiece, as the sub-pressing plate 4 descends, a relative displacement first occurs between the tooling plate 51 and the sub-pressing plate 4, and the buffer spring 93 is continuously compressed until it reaches the compression limit, and the tooling plate 51 and the sub-pressing plate 4 descend synchronously. Through the elastic connection between the tooling plate 51 and the sub-pressing plate 4, the elastic contact between the pressing block 52 and the workpiece is achieved, avoiding the possibility of damage between the pressing block 52 and the workpiece due to the sub-pressing plate 4 descending too quickly, thereby improving the practicality of the equipment.

[0053] The implementation principle of a refrigerator door column assembly device according to an embodiment of the present application is as follows: according to the shape of the workpiece, a suitable pressing piece 5 is selected in different areas, and the pressing piece 5 is installed on the sub-pressing plate 4 in sequence. During installation, the operator pulls the pull rod 81 with one hand to expose the mounting plate 6 to the mounting hole 41, and controls the tooling plate 51 to move up along the wing plate 42 with the other hand to insert the mounting column 53 into the mounting hole 41 and align the movable column 92 with the groove 45. After the tooling plate 51 is in place, the pull rod 81 is released, and the compression spring 82 drives the mounting plate 6 to rotate to fix the mounting column 53 on the sub-pressing plate 4, and the installation of the pressing piece 5 is completed. The operator clamps the workpiece on the fixture 2, and the driving member 3 drives the sub-pressing plate 4 to descend, and the sub-pressing plate 4 drives the tooling plate 51 to descend. Under the action of the buffer spring 93, the pressing block 52 elastically contacts the workpiece, and the protrusion 521 on the pressing block 52 accurately presses the claw. The independent driving member 3 drives the pressing member 5 adapted in different regions to install the claws and buckles, thereby improving the accuracy of the claw engagement and ensuring that each claw is engaged with the buckle. The gear 7 and the rack 8 are linked to the rotation of multiple installation pieces 6 to achieve rapid disassembly and assembly of the pressing member 5; the buffer member 9 reduces the collision damage between the pressing block 52 and the workpiece, thereby improving the practicality of the equipment.

[0054] In other embodiments of the present application, the tooling plate 51 can also be directly connected to the sub-pressure plate 4 by bolts.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A refrigerator door column assembly device, characterized in that: The invention comprises a frame (1), a fixture (2) is arranged on the frame (1), a plurality of sub-pressing plates (4) are arranged on the top of the fixture (2) for lifting, a plurality of driving members (3) are installed on the frame (1), each of the driving members (3) is respectively connected to a sub-pressing plate (4); a pressing member (5) is arranged on the sub-pressing plate (4), and the pressing member (5) is detachably connected to the sub-pressing plate (4).

2. The refrigerator door column assembly device according to claim 1, characterized in that: The pressing member (5) comprises a tooling plate (51) and a plurality of pressing blocks (52); the tooling plate (51) is detachably connected to the sub-pressing plate (4); and the pressing blocks (52) are mounted on the tooling plate (51); the arrangement of the plurality of pressing blocks (52) matches the arrangement of the clamping claws; the contact surface between the pressing block (52) and the workpiece is provided with an arc surface (522) and a protrusion (521); the protrusion (521) is correspondingly arranged just above the clamping claw position of the workpiece, and the arc surface (522) matches the shape of the workpiece.

3. The refrigerator door column assembly device according to claim 2, characterized in that: A plurality of mounting posts (53) are mounted on the tooling plate (51); mounting holes (41) are arranged on the sub-pressing plate (4) corresponding to the mounting posts (53); a notch (531) is provided on the mounting posts (53); a mounting sheet (6) is arranged on the sub-pressing plate (4); the mounting sheet (6) can cover the mounting holes (41), and the mounting sheet (6) can be clamped in the notch (531).

4. The refrigerator door column assembly device according to claim 3, characterized in that: The mounting plate (6) is rotatably connected to the sub-pressing plate (4), the bottom wall of the mounting plate (6) is slidably matched with the top wall of the sub-pressing plate (4), an arc-shaped hole (61) is provided on the mounting plate (6), the arc-shaped hole (61) is adapted to the notch (531) of the mounting column (53), and the diameter of the mounting column (53) is larger than the inner diameter of the arc-shaped hole (61).

5. The refrigerator door column assembly device according to claim 4, characterized in that: The shape of the mounting piece (6) is a fan, and when the mounting piece (6) moves, its edge is always located within the projection range of the sub-pressing plate (4).

6. The refrigerator door column assembly device according to claim 4, characterized in that: The side wall of the mounting plate (6) is provided with teeth, and a gear (7) is correspondingly provided next to each mounting plate (6) and meshed therewith, and the gear (7) is rotationally connected to the sub-pressure plate (4); a rack (8) is provided between two adjacent gears (7) and meshed therewith, and a cavity (43) is provided inside the sub-pressure plate (4), and the rack (8) is slidably arranged in the cavity (43), and multiple gears (7) are linked via multiple racks (8).

7. The refrigerator door column assembly device according to claim 6, characterized in that: A pull rod (81) is installed on one of the racks (8), and a waist-shaped through hole (44) is opened on the sub-pressure plate (4), and the waist-shaped through hole (44) is connected to the cavity (43). One end of the pull rod (81) away from the rack (8) extends out of the sub-pressure plate (4) through the waist-shaped through hole (44), and the pull rod (81) can move along the length direction of the waist-shaped through hole (44).

8. The refrigerator door column assembly device according to claim 6, characterized in that: A compression spring (82) is provided on the rack (8), one end of the compression spring (82) is connected to the rack (8), and the other end is connected to the inner wall of the cavity (43).

9. The refrigerator door column assembly device according to claim 2, characterized in that: A buffer member (9) is also provided between the tooling plate (51) and the sub-pressing plate (4), one end of the buffer member (9) is fixedly connected to the tooling plate (51), a groove (45) is provided on the bottom wall of the sub-pressing plate (4), and one end of the buffer member (9) away from the tooling plate (51) is clamped in the groove (45).

10. The refrigerator door column assembly device according to claim 2, characterized in that: A wing plate (42) is provided at the edge of the side wall of the sub-pressing plate (4); the wing plate (42) and the sub-pressing plate (4) are integrally formed; the wing plate (42) is sleeved outside the side wall of the tooling plate (51); and the inner side wall of the wing plate (42) is in contact with the side wall of the tooling plate (51).

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