Automatic feeding ceiling of large-span machine tool

By designing the automatic loading ceiling of a large span machine tool, using the organ protection folding and linear module drive support beam, the problem of the waist collapse of the loading ceiling of a large span machine tool is solved, and the loading and machine tool protection needs of large parts are achieved.

CN223251217UActive Publication Date: 2025-08-22DALIAN BODAK CNC MASCH CO LTD
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Patent Information

Application Number
CN202422540607.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-21
Publication Date
2025-08-22
Estimated Expiration
2034-10-21

AI Technical Summary

Technical Problem

The loading ceiling of large span machine tools is prone to collapse, which cannot meet the loading and machine tool protection needs of large parts.

Method used

A large-span machine tool automatic loading ceiling is designed, using an organ protective folding sheet and a linear module drive support beam. The upper protective folding sheet and the lower protective folding sheet are provided between the support plates. The support beam is extended and folded through the linear module drive support beam, and combined with the rodless cylinder and the automatic adjustment structure, the opening and closing of the protective cavity is realized.

Benefits of technology

It effectively avoids waist collapse, meets the loading needs of large parts, and provides effective protection from the machine tool, achieving flexible opening and closing of the top opening of the protective cover.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223251217U_ABST
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Abstract

The utility model discloses a large span machine tool automatic feeding ceiling which comprises an organ protection hinge, a supporting beam and two linear modules, one end of the organ protection hinge is connected with a machine tool, the other end of the organ protection hinge is connected with the supporting beam, and the two linear modules are located on the two sides of the organ protection hinge. The two linear modules drive the supporting beams to move in the extending and folding directions of the organ protection hinge. The organ protection hinge comprises a plurality of supporting plates distributed at equal intervals in an array mode, an upper protection hinge and a lower protection hinge are arranged between every two adjacent supporting plates, the upper protection hinges and the lower protection hinges are oppositely arranged at intervals, the multiple upper protection hinges correspond to each other end to end in sequence, and the multiple lower protection hinges correspond to each other end to end in sequence. The supporting plate at one end of the organ protection hinge in the telescopic direction is fixedly connected with a first fixing plate, the supporting plate at the other end of the organ protection hinge is fixedly connected with a second fixing plate, the first fixing plate is fixedly connected with the supporting beam, and the second fixing plate is connected with a machine tool. The two linear modules are mounted on the mounting plate, U-shaped notches are formed in the two ends of the supporting plate, and one side of the mounting plate is inserted into the U-shaped notches. Waist collapse can be avoided, and the requirements of a machine tool for feeding of large parts and protection of the machine tool are met.
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Description

Technical Field

[0001] The utility model relates to the technical field of machine tool equipment, in particular to an automatic loading roof for a large-span machine tool. Background Art

[0002] Precision CNC machine tools require fully enclosed protective covers for external protection. To facilitate the lifting of large workpieces, large-span machine tools often feature an opening at the top of the cover and a retractable loading canopy for loading and unloading. These canopies typically utilize accordion-style protective flaps for retractable opening and closing, but due to their large span, they are prone to collapse. Therefore, a large-span loading canopy was needed to accommodate both the loading and protection needs of large parts. Utility Model Content

[0003] The utility model provides an automatic loading roof for a large-span machine tool to solve the above technical problems.

[0004] In order to achieve the above purpose, the technical solution of the utility model is:

[0005] An automatic loading ceiling for a large-span machine tool comprises an organ-shaped protective flap, a support beam, and two sets of linear modules. One end of the organ-shaped protective flap is connected to the machine tool, and the other end is connected to the support beam. The two sets of linear modules are located on both sides of the organ-shaped protective flap and drive the support beam to move along the extension and folding directions of the organ-shaped protective flap.

[0006] The accordion protective hinge includes several support plates distributed in an array with equal intervals, and upper protective hinges and lower protective hinges are provided between adjacent support plates. The upper protective hinges and lower protective hinges are opposite to each other and arranged at intervals. The head and tail of several upper protective hinges correspond to each other in sequence, and the head and tail of several lower protective hinges correspond to each other in sequence; the support plate at one end of the accordion protective hinge along the extension and contraction direction is fixedly connected to the first fixed plate, and the support plate at the other end is fixedly connected to the second fixed plate, the first fixed plate is fixedly connected to the support beam, and the second fixed plate is connected to the machine tool; two sets of linear modules are respectively installed on the mounting plates, and U-shaped notches are opened at both ends of the support plates, and one side of the mounting plate is inserted into the U-shaped opening.

[0007] Preferably, in the vertical direction: the upper protective hinge is located below the upper end of the support plate, and the lower protective hinge is located above the lower end of the support plate.

[0008] Preferably, the linear module adopts a rodless cylinder, and the slide of the rodless cylinder is connected to the support beam through an automatic adjustment structure;

[0009] The automatic adjustment structure includes: a pushing member connecting the rodless cylinder slide and a connecting member connecting the support beam, a groove is opened on the connecting member, the pushing member is inserted into the groove, and a gap is left between the pushing member and the groove. The pushing member can move relative to the groove along the first movement direction, the second movement direction and the third movement direction. The first movement direction, the second movement direction and the third movement direction are perpendicular to each other. The first movement direction is along the movement direction of the rodless cylinder slide, and the second movement direction is along the center line direction of the groove.

[0010] Preferably, the groove passes through the connecting piece, and the pushing piece is connected to a pressure plate after passing through the groove, and the size of the pressure plate along the first movement direction or the third movement direction is larger than the size of the groove in the corresponding direction.

[0011] Preferably, the groove is a rectangular through groove, the pushing member is a rectangular plate, a gap is left between the pushing member and the groove along the first movement direction, a gap is left between the pushing member and the groove along the third movement direction, and a gap is left between the pressure plate and the connecting member along the second movement direction.

[0012] Preferably, the rodless cylinder slide is arranged horizontally, the connecting piece is plate-shaped, the connecting piece is located above the rodless cylinder slide, and the center line of the groove is arranged in the vertical direction; the connecting piece is fixedly connected to an adapter plate on one side along the third movement direction, the adapter plate is arranged perpendicular to the third movement direction and is located on the side of the rodless cylinder facing the support beam, and the adapter plate is connected to the support beam.

[0013] Preferably, a linear guide rail assembly is connected below the connecting member, and the linear guide rail assembly is located between the adapter plate and the rodless cylinder.

[0014] Preferably, a group of proximity sensors are provided on the mounting plate, and the proximity sensors are used for stroke control of the rodless cylinder slide.

[0015] Preferably, the support beam comprises a first support frame and a second support frame;

[0016] The first support frame includes a first vertical plate, a first horizontal plate and a second vertical plate, the first vertical plate is attached to and fixed to the first fixing plate, the upper and lower edges of the second fixing plate extend out of the support plate in the vertical direction, the upper edge of the first vertical plate extends upward in the vertical direction out of the first fixing plate and is fixedly connected to the first horizontal plate, the first horizontal plate is horizontally arranged and located on the side of the first vertical plate facing the second fixing plate, the first horizontal plate is fixedly connected to the second vertical plate, the second vertical plate is located on the lower side of the first horizontal plate, and the second vertical plate is parallel to and corresponds to the upper edge of the second fixing plate;

[0017] The second support frame includes a third vertical plate and a second horizontal plate. The third vertical plate is attached to and fixed on the side of the first vertical plate away from the first fixed plate. The upper edge of the third vertical plate is located below the upper edge of the first vertical plate. The second horizontal plate is horizontally arranged and fixedly connected to the upper edge of the third vertical plate. Several ribs are fixed at the angle between the second horizontal plate and the first vertical plate.

[0018] Preferably, a third transverse plate is fixedly connected to the lower side of the third vertical plate, and the third transverse plate is parallel to the second transverse plate.

[0019] Beneficial effects:

[0020] The present application discloses an automatic loading ceiling for a large-span machine tool, which is equipped with a number of support plates distributed in an array with equal intervals, and upper protective hinges and lower protective hinges are provided between adjacent support plates. The support plates support the upper and lower protective hinges to prevent collapse, and the upper and lower protective hinges and the support plates form a protective cavity for protection; the linear module drives the support beam and then drives the accordion protective hinges to extend and fold, meeting the machine tool's requirements for loading large parts and machine tool protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 This is a structural diagram of a large-span automatic loading ceiling for machine tools disclosed in the utility model;

[0023] Figure 2 This is a top view of a large-span automatic loading ceiling for machine tools disclosed in the utility model;

[0024] Figure 3 for Figure 2 Cross-sectional view of AA;

[0025] Figure 4 for Figure 3 A partial enlarged view of middle II;

[0026] Figure 5 This is a structural diagram of an organ protection hinge for a large-span machine tool automatic loading ceiling disclosed in the utility model;

[0027] Figure 6 This is a structural diagram of a large-span machine tool automatic loading ceiling linear module and an automatic adjustment structure assembly disclosed in the utility model;

[0028] Figure 7 for Figure 6 A partial enlarged view of middle Ⅰ;

[0029] Figure 8 This is a top view of a large-span machine tool automatic loading ceiling linear module and automatic adjustment structure assembly disclosed in the utility model;

[0030] Figure 9 This is a front view of a large-span machine tool automatic loading ceiling linear module and automatic adjustment structure assembly disclosed in the utility model;

[0031] Figure 10 This is a structural diagram of a large-span machine tool automatic loading ceiling support beam disclosed in the utility model;

[0032] Figure 11 The utility model discloses a side view of a large-span machine tool automatic loading ceiling support beam.

[0033] 1. Organ protection hinge; 11. Support plate; 12. Upper protection hinge; 13. Lower protection hinge; 14. First fixing plate; 15. Second fixing plate;

[0034] 2. Support beam; 21. First support frame; 211. First vertical plate; 212. First horizontal plate; 213. Second vertical plate; 22. Second support frame; 221. Third vertical plate; 222. Second horizontal plate; 223. Third horizontal plate; 23. Rib plate; 24. Fourth horizontal plate;

[0035] 3. Linear module; 41. Pusher; 42. Connector; 43. Slot; 44. Pressure plate; 45. Adapter plate; 46. Linear guide rail assembly; 47. Guide rail bracket; 5. Mounting plate; 6. Proximity sensor. DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0037] A large-span automatic loading ceiling for machine tools, combined with Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, it includes: an organ protection hinge 1, a support beam 2 and two sets of linear modules 3. One end of the organ protection hinge 1 is connected to the machine tool and the other end is connected to the support beam 2. The two sets of linear modules 3 are located on both sides of the organ protection hinge 1. The two sets of linear modules 3 drive the support beam 2 to move along the extension and folding directions of the organ protection hinge 1;

[0038] The accordion protective hinge 1 includes a number of support plates 11 distributed in an array with equal intervals, and upper protective hinges 12 and lower protective hinges 13 are provided between adjacent support plates 11. The upper protective hinges 12 and the lower protective hinges 13 are opposite to each other and arranged at intervals. The head and tail of several upper protective hinges 12 correspond in sequence, and the head and tail of several lower protective hinges 13 correspond in sequence; the support plate 11 at one end of the accordion protective hinge 1 along the telescopic direction is fixedly connected to the first fixed plate 14, and the support plate 11 at the other end is fixedly connected to the second fixed plate 15. The first fixed plate 14 is fixedly connected to the support beam 2, and the second fixed plate 15 is connected to the machine tool; two groups of linear modules 3 are respectively installed on the mounting plate 5, and U-shaped notches are opened at both ends of the support plate 11, and one side of the mounting plate 5 is inserted into the U-shaped opening.

[0039] Adjacent support plates 11 support the upper and lower protective hinges 12 and 13 therebetween, preventing the middle of the support plate 11 from collapsing in the longitudinal direction. Several support plates 11 arranged in an array with equal spacing can be placed on one side of the mounting plate 5 to prevent the accordion protective hinges 1 from collapsing in the extension and folding directions. The upper and lower protective hinges 12, 13, and support plates 11 form a protective cavity to protect the machine tool. Two sets of linear modules 3 drive the support beam 2, which in turn drives the accordion protective hinge 1 to extend and fold, realizing the opening and closing of the top opening of the protective cover. A span of 3 meters can be achieved, meeting the machine tool's requirements for loading large parts and protecting the machine tool.

[0040] Preferably, in the vertical direction, the upper protective flap 12 is located below the upper end of the support plate 11, and the lower protective flap 13 is located above the lower end of the support plate 11. That is, the upper end of the support plate 11 is higher than the upper protective flap 12, and the lower end of the support plate 11 is lower than the lower protective flap 13, so that the upper and lower protective flaps 12, 13 can be completely retracted into the adjacent support plate 11 after folding.

[0041] Specifically, the support plate 11 is made of metal plate, and the upper protective hinge 12 and the lower protective hinge 13 are made of small accordion hinges, which can reduce the minimum compression amount, reduce the required height reserved space, and reduce the overall weight of the accordion protective hinge 1.

[0042] Preferably, combined Figure 1 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9 As shown, the linear module 3 adopts a rodless cylinder, and the slide of the rodless cylinder is connected to the support beam 2 through an automatic adjustment structure;

[0043] The automatic adjustment structure includes a pusher 41 connecting the rodless cylinder slide and a connector 42 connecting the support beam 2. The connector 42 has a slot 43, into which the pusher 41 is inserted, with a gap between the pusher 41 and the slot 43. The pusher 41 can move relative to the slot 43 in a first, second, and third direction. The first, second, and third directions are perpendicular to each other. The first direction is along the direction of movement of the rodless cylinder slide, i.e., the direction of extension and contraction of the accordion protective flap 1, and the second direction is along the centerline of the slot 43. The gap between the pusher 41 and the slot 43 allows the pusher 41 to move relative to the slot 43 in the first, second, and third directions. When the dual rodless cylinders push the two ends of the support beam 2, causing deviation, the pusher 41 moves relative to the slot 43 in the first and third directions, achieving automatic adjustment and compensation, preventing the support beam 2 from twisting, which could cause the dual rodless cylinders to become excessively eccentric and cause the cylinders to become stuck. At the same time, the movement of the pushing member 41 relative to the slot 43 along the first movement direction can compensate for the processing errors and installation errors of the two rodless cylinders in the first movement direction, that is, the two rodless cylinders cannot be completely aligned in the first movement direction; the movement of the pushing member 41 relative to the slot 43 along the third movement direction can compensate for the processing errors and installation errors of the two rodless cylinders in the third movement direction, that is, the two rodless cylinders cannot be completely parallel; the movement of the pushing member 41 relative to the slot 43 along the second movement direction can compensate for the processing errors and installation errors of the two rodless cylinders in the second movement direction, that is, the two rodless cylinders cannot be completely maintained in a horizontal plane, thereby avoiding cylinder jamming.

[0044] Preferably, the groove 43 passes through the connecting member 42, and the pushing member 41 is connected to a pressure plate 44 after passing through the groove 43. The size of the pressure plate 44 along the first or third direction of movement is larger than the size of the groove 43 in the corresponding direction. The pressure plate 44 can prevent the pushing member 41 from falling out of the groove 43, ensuring a reliable connection between the pushing member 41 and the connecting member 4.

[0045] Preferably, slot 43 is a rectangular through-slot, and pusher 41 is a rectangular plate. The large surface area between pusher 41 and slot 43 allows for uniform thrust transfer to drive support beam 2. This also reduces the size of the automatic adjustment structure in the second direction of motion, thereby lowering the height of the loading ceiling. A gap exists between pusher 41 and slot 43 along the first direction of motion, a gap exists between pusher 41 and slot 43 along the third direction of motion, and a gap exists between pressure plate 44 and connector 42 along the second direction of motion. This ensures that pusher 41 can move relative to slot 43 in the first, second, and third directions of motion.

[0046] Specifically, along the third movement direction, the distances between the two side surfaces of the pushing member 41 and the side walls of the opposite groove 43 are 2-3 mm, and the automatic adjustment range is plus or minus 2-3 mm.

[0047] Preferably, the rodless cylinder slide is arranged horizontally, and the connecting member 42 is plate-shaped and located above the rodless cylinder slide. The centerline of the groove 43 is arranged in the vertical direction, thereby reducing the vertical size of the automatic adjustment structure. An adapter plate 45 is fixedly connected to the side of the connecting member 42 along the third direction of motion. The adapter plate 45 is arranged perpendicular to the third direction of motion and is located on the side of the rodless cylinder facing the support beam 2. The adapter plate 45 is connected to the support beam 2. By connecting at the side, the vertical size of the automatic adjustment structure can be further reduced.

[0048] Preferably, a linear guide assembly 46 is connected below the connector 42 and is located between the adapter plate 45 and the rodless cylinder. The linear guide assembly 46 can support the portion of the connector 42 that extends horizontally beyond the rodless cylinder and guides the movement of the connector 42 to ensure accurate and smooth operation.

[0049] Specifically, a guide rail bracket 47 is provided under the linear guide rail assembly 46 .

[0050] Preferably, a group of proximity sensors 6 are provided on the mounting plate 5 , and the proximity sensors 6 are used for stroke control of the rodless cylinder slide.

[0051] Preferably, combined Figure 1 、 Figure 5 、 Figure 10 and Figure 11 As shown, the support beam 2 includes a first support frame 21 and a second support frame 22;

[0052] The first support frame 21 includes a first vertical plate 211, a first horizontal plate 212 and a second vertical plate 213. The first vertical plate 211 is attached to and fixed to the first fixed plate 14, and the upper and lower edges of the second fixed plate 15 extend out of the support plate 11 in the vertical direction. The upper edge of the first vertical plate 211 extends upward in the vertical direction out of the first fixed plate 14 and is fixedly connected to the first horizontal plate 212. The first horizontal plate 212 is horizontally arranged and located on the side of the first vertical plate 211 facing the second fixed plate 15. The first horizontal plate 212 is fixedly connected to the second vertical plate 213. The second vertical plate 213 is located on the lower side of the first horizontal plate 212. The second vertical plate 213 is parallel to and corresponds to the upper edge of the second fixed plate 15; when the accordion protective hinge 1 is folded, the second vertical plate 213 can abut against the upper edge of the second fixed plate 15, thereby realizing mechanical limiting of the support beam 2 and preventing the upper protective hinge 12, the lower protective hinge 13 and the support plate 11 from squeezing each other.

[0053] The second support frame 22 includes a third vertical plate 221 and a second horizontal plate 222. The third vertical plate 221 is attached to and fixed to the side of the first vertical plate 211 away from the first fixing plate 14. The upper edge of the third vertical plate 221 is located below the upper edge of the first vertical plate 211. The second horizontal plate 222 is horizontally arranged and fixedly connected to the upper edge of the third vertical plate 221. Several ribs 23 are fixed at the angle between the second horizontal plate 222 and the first vertical plate 211. The structural design of the support beam 2 ensures that the support beam 2 achieves maximum strength while minimizing weight.

[0054] Specifically, the fourth transverse plate 24 connects a plurality of rib plates 23 to further enhance the strength of the support beam 2 .

[0055] Preferably, a third transverse plate 223 is fixedly connected to the lower edge of the third vertical plate 221, and the third transverse plate 223 is parallel to the second transverse plate 222. When the accordion protective flap 1 is extended to close the top opening of the protective cover, the third transverse plate 223 and the second transverse plate 222 can overlap the upper and lower edges of the top opening of the protective cover, respectively, so that the support beam 2 is stuck to the edge of the top opening of the protective cover.

[0056] Specifically, the first vertical plate 211 , the first horizontal plate 212 and the second vertical plate 213 are integrally formed by bending sheet metal; the third vertical plate 221 , the second horizontal plate 222 and the third horizontal plate 223 are also integrally formed by bending sheet metal.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A large-span machine tool automatic loading ceiling, characterized in that: include: An accordion protection fold (1), a support beam (2) and two sets of linear modules (3), one end of the accordion protection fold (1) is connected to a machine tool and the other end is connected to the support beam (2), the two sets of linear modules (3) are located on both sides of the accordion protection fold (1), and the two sets of linear modules (3) drive the support beam (2) to move along the extension and folding direction of the accordion protection fold (1); The accordion protective fold (1) includes a plurality of support plates (11) distributed in an array at equal intervals, and an upper protective fold (12) and a lower protective fold (13) are provided between adjacent support plates (11), and the upper protective fold (12) and the lower protective fold (13) are arranged opposite to each other and spaced apart, and the head and tail of a plurality of the upper protective folds (12) correspond to each other in sequence, and the head and tail of a plurality of the lower protective fold (13) correspond to each other in sequence; the support plate (11) at one end of the accordion protective fold (1) along the telescopic direction is fixedly connected to a first fixed plate (14), and the support plate (11) at the other end is fixedly connected to a second fixed plate (15), the first fixed plate (14) is fixedly connected to the support beam (2), and the second fixed plate (15) is connected to the machine tool; the two groups of linear modules (3) are respectively installed on the mounting plate (5), and U-shaped notches are provided at both ends of the support plate (11), and one side of the mounting plate (5) is inserted into the U-shaped opening.

2. The large-span automatic loading ceiling for machine tools according to claim 1, characterized in that: In the vertical direction: the upper protective fold (12) is located below the upper end of the support plate (11), and the lower protective fold (13) is located above the lower end of the support plate (11).

3. The large-span automatic loading ceiling for machine tools according to claim 1, characterized in that: The linear module (3) adopts a rodless cylinder, and the slide of the rodless cylinder is connected to the support beam (2) through an automatic adjustment structure; The automatic adjustment structure includes: a pushing member (41) connected to the rodless cylinder slide and a connecting member (42) connected to the support beam (2), a groove (43) is provided on the connecting member (42), the pushing member (41) is inserted into the groove (43), a gap is left between the pushing member (41) and the groove (43), the pushing member (41) can move relative to the groove (43) along a first movement direction, a second movement direction and a third movement direction, the first movement direction, the second movement direction and the third movement direction are perpendicular to each other, the first movement direction is along the movement direction of the rodless cylinder slide, and the second movement direction is along the center line direction of the groove (43).

4. The large-span automatic loading ceiling for machine tools according to claim 3 is characterized in that: The groove (43) passes through the connecting member (42), and the pushing member (41) is connected to a pressing plate (44) after passing through the groove (43). The size of the pressing plate (44) along the first movement direction or the third movement direction is larger than the size of the groove (43) in the corresponding direction.

5. The large-span automatic loading ceiling for machine tools according to claim 4 is characterized in that: The groove (43) is a rectangular through groove, the pushing member (41) is a rectangular plate, a gap is left between the pushing member (41) and the groove (43) along the first movement direction, a gap is left between the pushing member (41) and the groove (43) along the third movement direction, and a gap is left between the pressing plate (44) and the connecting member (42) along the second movement direction.

6. The large-span automatic loading ceiling for machine tools according to claim 5, characterized in that: The rodless cylinder slide is arranged horizontally, the connecting member (42) is plate-shaped, the connecting member (42) is located above the rodless cylinder slide, and the center line of the groove (43) is arranged in the vertical direction; the connecting member (42) is fixedly connected to an adapter plate (45) on one side along the third movement direction, the adapter plate (45) is arranged perpendicular to the third movement direction and is located on the side of the rodless cylinder facing the support beam (2), and the adapter plate (45) is connected to the support beam (2).

7. The large-span automatic loading ceiling for machine tools according to claim 6, characterized in that: A linear guide assembly (46) is connected below the connecting member (42), and the linear guide assembly (46) is located between the adapter plate (45) and the rodless cylinder.

8. The large-span automatic loading ceiling for machine tools according to claim 7, characterized in that: A group of proximity sensors (6) are provided on the mounting plate (5), and the proximity sensors (6) are used for stroke control of the rodless cylinder slide.

9. The large-span automatic loading ceiling for machine tools according to claim 1, characterized in that: The support beam (2) comprises a first support frame (21) and a second support frame (22); The first support frame (21) includes a first vertical plate (211), a first horizontal plate (212) and a second vertical plate (213), the first vertical plate (211) is attached to and fixed on the first fixing plate (14), the upper and lower edges of the second fixing plate (15) extend out of the support plate (11) in a vertical direction, the upper edge of the first vertical plate (211) extends upward in a vertical direction out of the first fixing plate (14) and is fixedly connected to the first horizontal plate (212), the first horizontal plate (212) is horizontally arranged and located on a side of the first vertical plate (211) facing the second fixing plate (15), the first horizontal plate (212) is fixedly connected to the second vertical plate (213), the second vertical plate (213) is located on the lower side of the first horizontal plate (212), and the second vertical plate (213) is parallel to and corresponds to the upper edge of the second fixing plate (15); The second support frame (22) includes a third vertical plate (221) and a second horizontal plate (222), the third vertical plate (221) is attached to and fixed on the side of the first vertical plate (211) away from the first fixed plate (14), the upper edge of the third vertical plate (221) is located below the upper edge of the first vertical plate (211), the second horizontal plate (222) is horizontally arranged and fixedly connected to the upper edge of the third vertical plate (221), and a plurality of ribs (23) are fixed at the angle between the second horizontal plate (222) and the first vertical plate (211).

10. The large-span automatic loading ceiling for machine tools according to claim 9, characterized in that: The lower side of the third vertical plate (221) is fixedly connected to a third horizontal plate (223), and the third horizontal plate (223) is parallel to the second horizontal plate (222).