Machining center skylight mechanism

By designing a double-opening synchronous opening and closing structure for the skylight mechanism of the machining center, the problem of the protective door of the CNC machining center being unable to move large workpieces was solved, realizing convenient transfer of large workpieces and safe sealing of the machining process. The structure is simple and the operation is reliable.

CN223820168UActive Publication Date: 2026-01-23MULLER MOTOR (QINGDAO) CO LTD
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Patent Information

Application Number
CN202520410496.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-01-23
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

The existing protective door design of CNC machining centers is not convenient for handling large and heavy workpieces, resulting in inconvenience in operation and insufficient sealing.

Method used

Design a skylight mechanism for a machining center, which adopts a double-opening synchronous opening and closing structure. The skylight can be fully opened and sealed through a transparent window sash and an adjusting rod system. The window sash can be synchronously rotated and spliced ​​by a dual-output shaft motor driving a worm gear transmission.

Benefits of technology

It enables convenient transfer and safe sealing of large workpieces, ensuring the safety and sealing of the processing process. At the same time, it has a simple structure and stable and reliable operation.

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Abstract

The utility model discloses a machining center skylight mechanism which comprises a skylight frame and two transparent window sashes, the two transparent window sashes are combined and spliced to seal the skylight frame, inverted-L-shaped blocks are fixedly installed at the two ends of one side of the bottom of each transparent window sash, and L-shaped connecting blocks are fixedly installed at the bottoms of the inverted-L-shaped blocks. Fixing plates located at the same height are fixedly installed at the two ends of the two sides in the skylight frame, an adjusting rod is rotationally connected between every two opposite fixing plates on the two sides in the skylight frame, and the four L-shaped connecting blocks are in transmission connection with the adjacent adjusting rods correspondingly. A double-output-shaft motor for conducting transmission adjustment on the two adjusting rods is installed on one side of the surface of the skylight frame. The skylight mechanism of the machining center is provided with the double-opening synchronous opening and closing structure, the double-opening synchronous opening and closing structure can comprehensively open the top of the machining center, and therefore transfer operation of workpieces large in size and weight is facilitated, and meanwhile sealing can be effectively conducted through closing of the double-opening synchronous opening and closing structure.
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Description

Technical Field

[0001] This utility model belongs to the field of machining center technology, specifically a machining center skylight mechanism. Background Technology

[0002] CNC machining centers evolved from CNC milling machines. The biggest difference between them is that machining centers have the ability to automatically change machining tools. By installing tools for different purposes on the tool magazine, the machining tools on the spindle can be changed in a single setup via an automatic tool changer, achieving multiple machining functions. CNC machining centers are usually equipped with protective doors, which effectively prevent machining debris from splashing out. At the same time, workpieces can be placed on the machining table for processing through the protective doors. However, the protective doors open from the side, which is still inconvenient when handling some large and heavy workpieces. Therefore, to address the above problems, a machining center skylight mechanism needs to be designed to solve these issues. Utility Model Content

[0003] To achieve the above objectives, this utility model provides the following technical solution: a skylight mechanism for a machining center, comprising a skylight frame and two transparent window sashes. The two transparent window sashes can be combined and spliced ​​to seal the skylight frame. Inverted L-shaped blocks are fixedly installed at both ends of one bottom side of each of the two transparent window sashes. L-shaped connecting blocks are fixedly installed at the bottom of each inverted L-shaped block. Fixed plates at the same height are fixedly installed at both ends of both sides inside the skylight frame. Adjusting rods are rotatably connected between two opposite fixed plates on both sides inside the skylight frame. Four L-shaped connecting blocks are respectively connected to their adjacent adjusting rods. A dual-shaft motor for adjusting the two adjusting rods is installed on one side of the surface of the skylight frame.

[0004] Preferably, each of the four fixed plates has a vertical sliding groove in its middle, and each of the four vertical sliding grooves has a 90-degree sliding groove in the middle of one side. Each of the four L-shaped connecting blocks has a sliding pin fixedly installed in its middle, which is slidably installed inside the vertical sliding groove. Each of the two opposite L-shaped connecting blocks has a connecting rod fixedly installed between its ends, and both ends of the connecting rod are slidably installed inside the 90-degree sliding groove. The four vertical sliding grooves are all at the same height, and the four 90-degree sliding grooves are all at the same height.

[0005] Preferably, each of the two connecting rods is rotatably connected to a connecting block A on both sides, and each of the four connecting blocks A is rotatably connected to a connecting block B at the end away from the connecting rod. The four connecting blocks B are respectively fixedly connected to both sides of the two adjusting rods, thereby enabling effective transmission.

[0006] Preferably, one end of each of the two adjusting rods extends to one side of the sunroof frame and is fixedly connected to a worm gear. The two worm gears are symmetrically arranged. Both output ends of the dual-output shaft motor are connected to a rotating shaft. The ends of the two rotating shafts away from the dual-output shaft motor are fixedly connected to a worm. The two worms are symmetrically arranged and rotatably connected to the sunroof frame. The two worms are respectively engaged with the two worm gears, thereby enabling effective adjustment.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: The top window mechanism of this machining center has a double-opening synchronous opening and closing structure, which can fully open the top of the machining center, thereby facilitating the transfer operation of large and heavy workpieces. At the same time, the closing of the double-opening synchronous opening and closing structure can effectively seal the surface, thereby ensuring the safety of sealed machining. Furthermore, the top window mechanism of this machining center is simple in design, easy to use, and stable and reliable in operation and adjustment. Its performance can meet the usage requirements of CNC machining centers. Attached Figure Description

[0008] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0009] In the attached diagram:

[0010] Figure 1 This is a schematic diagram of the sunroof mechanism of the machining center according to this utility model;

[0011] Figure 2 This is a cross-sectional view of the sunroof mechanism of the machining center according to this utility model;

[0012] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;

[0013] Figure 4 This utility model Figure 3 Schematic diagram of local structure Figure 1 ;

[0014] Figure 5 This utility model Figure 3 Schematic diagram of local structure Figure 2 ;

[0015] In the diagram: 1. Skylight frame; 2. Transparent window sash; 3. Inverted L-shaped block; 4. L-shaped connecting block; 5. Fixing plate; 6. Adjusting rod; 7. Double-shaft motor; 8. Vertical slide groove; 9. Ninety-degree slide groove; 10. Sliding pin; 11. Linkage rod; 12. Connecting block A; 13. Connecting block B; 14. Worm gear; 15. Rotating shaft; 16. Worm. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Depend on Figures 1 to 5 The present invention includes a skylight frame 1 and two transparent window sashes 2. The two transparent window sashes 2 can be combined and spliced ​​to seal the skylight frame 1. The top of the machining center is provided with an installation groove that matches the skylight frame 1. The skylight frame 1 is fixedly installed inside the installation groove. The skylight frame 1 can effectively lift and transfer large and heavy workpieces.

[0018] Two inverted L-shaped blocks 3 are fixedly installed at both ends of the bottom side of the two transparent window sashes 2. L-shaped connecting blocks 4 are fixedly installed at the bottom of the inverted L-shaped blocks 3. Fixed plates 5 at the same height are fixedly installed at both ends of the inner sides of the skylight frame 1. Adjusting rods 6 are rotatably connected between the two opposite fixed plates 5 on the inner sides of the skylight frame 1. The four L-shaped connecting blocks 4 are respectively connected to the adjacent adjusting rods 6. A dual-shaft motor 7 for adjusting the two adjusting rods 6 is installed on one side of the surface of the skylight frame 1.

[0019] Each of the four fixed plates 5 has a vertical sliding groove 8 in the middle, and each of the four vertical sliding grooves 8 has a 90-degree sliding groove 9 in the middle of one side. Each of the four L-shaped connecting blocks 4 has a sliding pin 10 that is slidably installed inside the vertical sliding groove 8. Each of the two opposite L-shaped connecting blocks 4 has a connecting rod 11 that is fixedly installed between the ends. Both ends of the connecting rod 11 are slidably installed inside the 90-degree sliding groove 9. The four vertical sliding grooves 8 are all at the same height, and the four 90-degree sliding grooves 9 are all at the same height.

[0020] Both sides of the two linkage rods 11 are rotatably connected to connecting blocks A12. The ends of the four connecting blocks A12 away from the linkage rods 11 are rotatably connected to connecting blocks B13. The four connecting blocks B13 are respectively fixedly connected to both sides of the two adjusting rods 6, thereby enabling effective transmission. One end of each of the two adjusting rods 6 extends to one side of the sunroof frame 1 and is fixedly connected to a worm gear 14. The two worm gears 14 are symmetrically arranged. The two output ends of the dual-output shaft motor 7 are each connected to a rotating shaft 15. The ends of the two rotating shafts 15 away from the dual-output shaft motor 7 are each fixedly connected to a worm 16. The two worm gears 16 are symmetrically arranged, and both worm gears 16 are rotatably connected to the sunroof frame 1. The two worm gears 16 are respectively meshed with the two worm gears 14, thereby enabling effective adjustment.

[0021] As shown in the attached figure, the two transparent window sashes 2 are in a 90-degree vertical opening state on both sides of the top of the skylight frame 1, which facilitates the hoisting and transfer of large and heavy workpieces to the machining center table.

[0022] When it is necessary to close the two transparent window sashes 2 onto the skylight frame 1, the two rotating shafts 15 are rotated by starting the dual-output shaft motor 7. The rotation of the two rotating shafts 15 will drive the two worm gears 16 to rotate, which in turn will drive the two worm wheels 14 to rotate. The rotation of the two worm wheels 14 will drive the two adjusting rods 6 to rotate. The rotation of the two adjusting rods 6 will drive the two connecting blocks B13 on them to rotate downward. The downward rotation of the connecting block B13 will pull the connecting block A12 to move downward. The downward movement of the connecting block A12 will pull the connecting rod 11 to slide inside the 90-degree slide groove 9 towards the inside of the vertical slide groove 8. During the sliding process of the connecting rod 11 inside the 90-degree slide groove 9, it will drive the L-shaped connecting block 4 to rotate 90 degrees through the sliding pin 10. The 90-degree rotation of the L-shaped connecting block 4 will drive the transparent window sash 2 to rotate 90 degrees through the inverted L-shaped block 3. Finally, the two transparent window sashes 2 will rotate 90 degrees relative to each other and be spliced ​​and closed.

[0023] When the linkage rod 11 moves into the vertical sliding groove 8, as the connecting block B13 continues to rotate, it will pull the linkage rod 11 to move down inside the vertical sliding groove 8 and at the same time drive the sliding pin 10 to move down inside the vertical sliding groove 8. The downward movement of the sliding pin 10 will drive the L-shaped connecting block 4, the inverted L-shaped block 3 and the transparent window sash 2 to move down, and finally cause the two spliced ​​and closed transparent window sashes 2 to move down and be inserted into the skylight frame 1 to achieve an effective sealing effect.

[0024] This machining center's skylight mechanism features a double-opening synchronous opening and closing structure. This structure allows for the full opening of the machining center's top, facilitating the transfer of large and heavy workpieces. Simultaneously, the closing of this double-opening synchronous opening and closing structure effectively seals the surface, ensuring the safety of the sealed machining process. Furthermore, this machining center's skylight mechanism is simple in design, easy to use, and offers stable and reliable operation and adjustment. Its performance meets the requirements of CNC machining centers.

Claims

1. A skylight mechanism for a machining center, comprising a skylight frame (1) and two transparent window sashes (2), wherein the two transparent window sashes (2) are assembled to seal the skylight frame (1), and the top of the machining center is provided with an installation groove that matches the skylight frame (1), wherein the skylight frame (1) is fixedly installed inside the installation groove, and the skylight frame (1) can effectively lift and transport large and heavy workpieces, characterized in that: Two inverted L-shaped blocks (3) are fixedly installed at both ends of the bottom side of the two transparent window sashes (2). L-shaped connecting blocks (4) are fixedly installed at the bottom of the inverted L-shaped blocks (3). Fixed plates (5) at the same height are fixedly installed at both ends of the inner sides of the skylight frame (1). Adjusting rods (6) are rotatably connected between the two opposite fixed plates (5) on the inner sides of the skylight frame (1). The four L-shaped connecting blocks (4) are respectively connected to the adjacent adjusting rods (6) through transmission. A double-shaft motor (7) for transmission adjustment of the two adjusting rods (6) is installed on one side of the surface of the skylight frame (1).

2. The machining center sunroof mechanism according to claim 1, characterized in that: Each of the four fixed plates (5) has a vertical sliding groove (8) in the middle, and a ninety-degree sliding groove (9) is provided in the middle of one side of each of the four vertical sliding grooves (8). Each of the four L-shaped connecting blocks (4) has a sliding pin (10) that is slidably installed inside the vertical sliding groove (8) in the middle. Each of the two opposite L-shaped connecting blocks (4) has a connecting rod (11) that is fixedly installed between the ends. Both ends of the connecting rod (11) are slidably installed inside the ninety-degree sliding groove (9). The four vertical sliding grooves (8) are all at the same height, and the four ninety-degree sliding grooves (9) are all at the same height.

3. The machining center sunroof mechanism according to claim 2, characterized in that: Both sides of the two connecting rods (11) are rotatably connected to connecting blocks A (12), and the ends of the four connecting blocks A (12) away from the connecting rods (11) are rotatably connected to connecting blocks B (13). The four connecting blocks B (13) are respectively fixedly connected to the two sides of the two adjusting rods (6).

4. The machining center sunroof mechanism according to claim 1, characterized in that: One end of each of the two adjusting rods (6) extends to one side of the sunroof frame (1) and is fixedly connected to a worm gear (14). The two worm gears (14) are symmetrically arranged. The two output ends of the dual-output motor (7) are connected to a rotating shaft (15). The ends of the two rotating shafts (15) away from the dual-output motor (7) are fixedly connected to a worm (16). The two worms (16) are symmetrically arranged, and both worms (16) are rotatably connected to the sunroof frame (1). The two worms (16) are respectively meshed with the two worm gears (14).