Large load-bearing beam support device and use method

Abstract

The present invention discloses a large-load-bearing beam support device and a method of use, which belongs to the technical field of machine tool equipment. The large-load-bearing beam support device is used symmetrically and is installed in one set on the left and right sides under the beam. The large-load-bearing beam support device mainly includes: a fixed body, screws, a moving rod, an end cover, a guide key, a travel switch A, a travel switch B, a pipe joint A, a pipe joint B, a screw plug, an inclined iron, a baffle, an L-plate and a support surface dust removal mechanism. It has the dual fastening functions of screws and inclined irons, which greatly improves the load-bearing capacity of the support device and the stability of the beam; a guide key and a travel switch are set in the device to improve its positioning accuracy; at the same time, a strong blowing structure for the support surface is designed, which can effectively clean the dust and other impurities on the support surface, thereby improving its positioning accuracy and ability to adapt to the environment.

Description

Technical Field

[0001] The invention relates to a large-load-bearing crossbeam supporting device and a use method thereof, belonging to the technical field of machine tool equipment. Background Art

[0002] Heavy-duty and ultra-heavy-duty vertical machine tools have complex structures and numerous components. One of their core components, the crossbeam, must be displaced along the column guide rails. Once it reaches its target position, its weight is primarily supported by a lead screw, which is then pressed against the column guide rails by a clamping cylinder via a pressure plate. Large crossbeams can weigh tens to hundreds of tons and must also bear the weight of the toolholder and cutting forces during operation. Such a heavy load, primarily carried by the lead screw, places significant pressure on the lead screw. Furthermore, because the lead screw and nut are relatively moving parts, a gap inevitably exists between them. This slight gap affects the stability of the crossbeam when the toolholder cuts the workpiece, and thus the accuracy of the machine tool. Adding a support device to the lower portion of the crossbeam would transfer some of the weight of the crossbeam, toolholder, and cutting forces to the main machine tool components, effectively alleviating the pressure on the lead screw and improving the stability of the crossbeam. However, existing crossbeam support devices have weak load-bearing capacity, low positioning accuracy, and a lack of support surface cleaning, making them unsuitable for widespread use on large crossbeams. Summary of the Invention

[0003] In order to solve the deficiencies of the above-mentioned prior art, the present invention provides a large-load-bearing beam support device and a method of use, which is more firmly and reliably fixed to the beam, and is equipped with a strong blowing structure on the support surface, which has high positioning accuracy and strong environmental adaptability.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a large-load-bearing beam support device and a method of use. The large-load-bearing beam support device is used symmetrically and is installed in one set on the left and right sides under the beam. The large-load-bearing beam support device mainly includes: a fixed body, a screw, a moving rod, an end cover, a guide key, a limit switch A, a limit switch B, a pipe joint A, a pipe joint B, a screw plug, an inclined iron, a baffle, an L-plate and a support surface dust removal mechanism. The fixed body is fastened to the lower surface of the beam by screws, and its internal cylindrical hollow has an inclined surface at the front end, and a second level of fastening is achieved by the inclined iron and the L-plate; the moving rod is installed inside the fixed body and can move axially, a sealing structure and a lubricating annular groove are provided on it, an air path is provided inside, and a lower plane is provided at the tail end; the end cover is installed at the front end of the fixed body and is provided with a sealing structure; the guide key is installed on the side wall of the moving rod A keyway is provided on the side wall of the fixed body, the guide key is located in the keyway and extends from the side wall of the fixed body; the travel switch A and the travel switch B are installed on the side walls on both sides of the keyway of the fixed body; the pipe joint A is installed on the side of the fixed body and is connected to the oil chamber behind the end plate of the moving rod inside the fixed body, the pipe joint B is installed on the end cover and is connected to the oil chamber at the front end of the moving rod inside the fixed body, and the screw plug is installed on the grease injection hole on the side of the fixed body; the moving rod is provided with a support surface dust removal mechanism, which can remove dust on the stepped surface of the column contacted by the lower plane of the tail end of the moving rod, and the L-plate is fixed to the lower surface of the beam; the inclined iron is wedged between the stepped surface of the L-plate and the inclined surface at the front end of the fixed body; the baffle is closed at the end of the inclined iron and fastened to the side of the L-plate by screws, and the pipe joint A and the pipe joint B are connected to the hydraulic system of the machine tool through a conduit.

[0005] Furthermore, the support surface dust removal mechanism includes a pipe joint C, an air circuit is set inside the guide key, which is connected to the air circuit inside the moving rod, and the tail end of the air circuit of the moving rod extends from the lower plane of its tail. The guide key is installed with a pipe joint C that is connected to it, and the pipe joint C is connected to the machine tool pneumatic system through a conduit.

[0006] According to the above description, a method for using a large-load-bearing crossbeam support device is provided. During operation, hydraulic oil is injected into the oil chamber behind the movable rod end plate through pipe joint A, and the hydraulic oil in the oil chamber in front of the movable rod end plate is discharged through pipe joint B. The movable rod retracts and enters the interior of the fixed body to prevent interference with the column when the crossbeam moves. The two sets of large-load-bearing crossbeam support devices move along with the crossbeam on the column guide rail of the machine tool. After moving to the vicinity of the target position, hydraulic oil is injected through pipe joint B and discharged through pipe joint A, and the movable rod extends from the interior of the fixed body. At this time, high-pressure gas is injected through pipe joint C, and the high-pressure gas is blown out from the lower plane of the end of the movable rod to clean the stepped surface on the back of the column guide rail. Subsequently, the large-load-bearing crossbeam support device moves slightly with the crossbeam, and the lower plane of the end of the movable rod contacts the stepped surface on the back of the column guide rail. The crossbeam is stably positioned, the support surface of the crossbeam is increased, and a higher support force is provided to the middle part of the crossbeam, so that it is stably supported.

[0007] Furthermore, when the moving rod retracts or extends, the guide key installed on its side cooperates with the keyway on the side of the fixed body to guide and ensure that the lower plane of the end of the moving rod is always parallel to the stepped surface on the back of the column guide rail. When the large-load-bearing beam support device bears the load, the two can fully contact and the pressure is evenly distributed. When the moving rod retracts, when the guide key touches the limit switch A, the machine tool system controls the pipe joint A to stop the oil supply; when the moving rod extends, when the guide key touches the limit switch B, the machine tool system controls the pipe joint B to stop the oil supply. The use of limit switches A and B ensures accurate telescopic positioning of the moving rod. Grease can be injected through the grease injection hole on the side of the fixed body to ensure sufficient lubrication when the moving rod is extended and retracted to avoid grinding. After the grease injection is completed, tighten the screw plug to prevent impurities from entering the grease injection hole.

[0008] The beneficial effects of the present invention are as follows: the large-load-bearing beam support device has dual fastening functions of screws and inclined irons, which greatly improves the load-bearing capacity of the support device and the stability of the beam; guide keys and travel switches are set in the device to improve its positioning accuracy; at the same time, a strong blowing structure of the support surface is designed, which can effectively clean dust and other impurities on the support surface, thereby improving its positioning accuracy and ability to adapt to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0010] Figure 1 This is a schematic diagram of the structure of the present invention installed on a beam.

[0011] Figure 2 It is a front view of the present invention installed on the crossbeam.

[0012] Figure 3 It is a side sectional view of the present invention installed on the crossbeam.

[0013] Figure 4 This is a top sectional view of the present invention installed on a beam.

[0014] Numbers in the figure:

[0015] 1. Fixed body, 2. Screw, 3. Moving rod, 4. End cover, 5. Guide key, 6. Travel switch A, 7. Travel switch B, 8. Pipe joint A, 9. Pipe joint B, 10. Pipe joint C, 11. Screw plug, 12. Bevel iron, 13. Baffle, 14. L-plate. DETAILED DESCRIPTION

[0016] like Figure 1-4As shown, a large-load-bearing beam support device is used symmetrically and is installed on the left and right sides of the beam. The large-load-bearing beam support device mainly includes: a fixed body 1, a screw 2, a moving rod 3, an end cover 4, a guide key 5, a limit switch A6, a limit switch B7, a pipe joint A8, a pipe joint B9, a screw plug 11, an inclined iron 12, a baffle 13, an L-plate 14 and a support surface dust removal mechanism. The fixed body 1 is fastened to the lower surface of the beam by a screw 2. Its internal cylindrical shape is hollow, and the front end has an inclined surface, and the second tightening is achieved by the inclined iron 12 and the L-plate 14; the moving rod 3 is installed inside the fixed body 1 and can move axially. A sealing structure and a lubricating annular groove are provided on it, an air path is provided inside, and a lower plane is provided at the tail end; the end cover 4 is installed at the front end of the fixed body 1 and is provided with a sealing structure; the guide key 5 is installed on the side wall of the moving rod 3, and a key is provided on the side wall of the fixed body 1 Groove, the guide key 5 is located in the keyway and extends from the side wall of the fixed body 1; the travel switch A6 and the travel switch B7 are installed on the side walls on both sides of the keyway of the fixed body 1; the pipe joint A8 is installed on the side of the fixed body 1 and is connected to the oil chamber behind the end plate of the moving rod 3 inside the fixed body 1, and the pipe joint B9 is installed on the end cover 4 and is connected to the oil chamber at the front end of the moving rod 3 inside the fixed body 1, and the screw plug 11 is installed on the grease injection hole on the side of the fixed body 1; the moving rod 3 is provided with a support surface dust removal mechanism, which can remove dust on the column step surface that the lower plane of the tail end of the moving rod 3 contacts, and the L plate 14 is fixed to the lower surface of the beam; the oblique iron 12 is wedged between the step surface of the L plate 14 and the inclined surface at the front end of the fixed body 1; the baffle 13 is closed at the end of the oblique iron 12 and fastened to the side of the L plate 14 by screws. The pipe joint A8 and the pipe joint B9 are connected to the machine tool hydraulic system through a conduit.

[0017] Furthermore, the support surface dust removal mechanism includes a pipe joint C10, an air circuit is set inside the guide key 5, and is connected to the air circuit inside the moving rod 3. The tail end of the air circuit of the moving rod 3 extends from the lower plane of its tail, and the guide key 5 is installed with a pipe joint C10 connected to it. The pipe joint C10 is connected to the machine tool pneumatic system through a conduit.

[0018] Based on the above description, a method for using a large-load-bearing crossbeam support device is provided. During operation, hydraulic oil is injected into the oil chamber behind the end plate of the movable rod 3 through pipe joint A8. The hydraulic oil in the oil chamber in front of the end plate of the movable rod 3 is discharged through pipe joint B9. The movable rod 3 retracts into the interior of the fixed body 1 to prevent interference with the column during movement of the crossbeam. The two sets of large-load-bearing crossbeam support devices move along with the crossbeam on the machine tool column guide rail. After moving to the vicinity of the target position, hydraulic oil is injected through pipe joint B9 and discharged through pipe joint A8, and the movable rod 3 extends from the interior of the fixed body 1. At this time, high-pressure gas is injected through pipe joint C10 and blown out from the lower surface of the end of the movable rod 3 to clean the stepped surface on the back of the column guide rail. Subsequently, the large-load-bearing crossbeam support device moves slightly with the crossbeam, and the lower surface of the end of the movable rod 3 contacts the stepped surface on the back of the column guide rail. The crossbeam is stably positioned, the support surface of the crossbeam is increased, and a higher supporting force is provided to the middle of the crossbeam, thereby ensuring stable support.

[0019] Furthermore, when the moving rod 3 retracts or extends, the guide key 5 installed on its side cooperates with the keyway on the side of the fixed body 1 to guide and ensure that the lower plane of the end of the moving rod 3 is always parallel to the stepped surface on the back of the column guide rail. When the large-load-bearing beam support device bears the load, the two can fully contact and the pressure is evenly distributed. When the moving rod 3 retracts, when the guide key 5 touches the limit switch A6, the machine tool system controls the pipe joint A8 to stop the oil supply; when the moving rod 3 extends, when the guide key 5 touches the limit switch B7, the machine tool system controls the pipe joint B9 to stop the oil supply. The use of limit switches A6 and B7 ensures that the moving rod 3 is accurately telescopically positioned. Grease can be injected through the grease injection hole on the side of the fixed body 1 to ensure that the moving rod 3 is fully lubricated when it is extended and retracted to avoid grinding. After the grease injection is completed, tighten the screw plug 11 to prevent impurities from entering the grease injection hole.

Claims

1. A large-load beam support device, which is used symmetrically and is installed on the left and right sides of the beam, and is characterized by: The large-load beam supporting device comprises: a fixed body (1), a screw (2), a moving rod (3), an end cover (4), a guide key (5), a travel switch A (6), a travel switch B (7), a pipe joint A (8), a pipe joint B (9), a screw plug (11), an inclined iron (12), a baffle (13), an L-plate (14) and a support surface dust removal mechanism, wherein the fixed body (1) is fastened to the lower surface of the beam by means of a screw (2), the inner cylindrical hollow portion thereof has an inclined surface at the front end, and a second fastening is achieved by means of the inclined iron (12) and the L-plate (14); the moving rod (3) is installed inside the fixed body (1) and can move axially, a sealing structure and a lubricating annular groove are provided on the moving rod, an air path is provided inside the moving rod, and a lower plane is provided at the tail end; the end cover (4) is installed at the front end of the fixed body (1) and a sealing structure is provided; the guide key (5) is installed on the side wall of the moving rod (3), a key slot is provided on the side wall of the fixed body (1), the guide key (5) is located in the key slot, and is extended from the side wall of the fixed body (1) Extended; travel switch A (6) and travel switch B (7) are installed on the side walls on both sides of the keyway of the fixed body (1); pipe joint A (8) is installed on the side of the fixed body (1) and communicates with the oil chamber behind the end plate of the moving rod (3) inside the fixed body (1); pipe joint B (9) is installed on the end cover (4) and communicates with the oil chamber at the front end of the moving rod (3) inside the fixed body (1); screw plug (11) is installed on the grease injection hole on the side of the fixed body (1); the moving rod (3) is provided with A support surface dust removal mechanism is provided, through which dust on the stepped surface of the column contacted by the lower plane of the tail end of the moving rod (3) can be removed. The L-plate (14) is fixed to the lower surface of the beam; the inclined iron (12) is wedged between the stepped surface of the L-plate (14) and the front inclined surface of the fixed body (1); the baffle (13) is engaged with the end of the inclined iron (12) and is fastened to the side of the L-plate (14) by screws. The pipe joint A (8) and the pipe joint B (9) are connected to the hydraulic system of the machine tool through a conduit.

2. A large load-bearing beam support device according to claim 1, characterized in that: The support surface dust removal mechanism includes a pipe joint C (10), an air path is provided inside the guide key (5), and is communicated with the air path inside the moving rod (3), the tail end of the air path of the moving rod (3) extends from the lower plane of the tail, and the pipe joint C (10) connected to the guide key (5) is installed on the guide key (5), and the pipe joint C (10) is connected to the pneumatic system of the machine tool through a conduit.

3. A method for using the large load-bearing beam support device according to claim 2, characterized in that: During operation, hydraulic oil is injected into the oil chamber behind the end plate of the moving rod (3) through the pipe joint A (8), and the hydraulic oil in the oil chamber in front of the end plate of the moving rod (3) is discharged through the pipe joint B (9). The moving rod (3) contracts and enters the interior of the fixed body (1) to avoid interference between the crossbeam and the column when the crossbeam moves. The two sets of large-load crossbeam support devices move along with the crossbeam on the column guide rail of the machine tool. After moving to the vicinity of the target position, hydraulic oil is injected through the pipe joint B (9) and the hydraulic oil is discharged through the pipe joint A (8), and the moving rod (3) extends from the interior of the fixed body (1). At this time, high-pressure gas is injected through the pipe joint C (10), and the high-pressure gas is blown out from the lower plane of the end of the moving rod (3) to clean the stepped surface on the back of the column guide rail. Subsequently, the large-load crossbeam support device moves slightly along with the crossbeam, and the lower plane of the end of the moving rod (3) contacts the stepped surface on the back of the column guide rail. The crossbeam is stably positioned, the support surface of the crossbeam is increased, and a higher support force is provided to the middle of the crossbeam, so that it can obtain stable support.

4. The method for using the large-load beam support device according to claim 3, characterized in that: When the moving rod (3) is retracted or extended, the guide key (5) installed on its side cooperates with the keyway on the side of the fixed body (1) to guide, ensuring that the lower plane of the end of the moving rod (3) and the stepped surface on the back of the column guide rail are always kept parallel. When the large-load beam support device bears the load, the two can fully contact and the pressure is evenly distributed; when the moving rod (3) is retracted, when the guide key (5) touches the travel switch A (6), the machine tool system control pipe joint A (8) stops supplying oil; when the moving rod (3) is extended, when the guide key (5) touches the travel switch B (7), the machine tool system control pipe joint B (9) stops supplying oil; the use of the travel switch A (6) and the travel switch B (7) ensures that the moving rod (3) is accurately positioned when it is extended and retracted; grease can be injected through the grease injection hole on the side of the fixed body (1) to ensure that the moving rod (3) is fully lubricated when it is extended and retracted to avoid grinding; after the grease injection is completed, the screw plug (11) is tightened to prevent impurities from entering the grease injection hole.

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