Lifting cross beam assembly and movable beam gantry machining center

Abstract

The embodiment of the invention discloses a lifting cross beam assembly and a movable beam gantry machining center and aims to solve the technical problems that an existing cross beam is prone to vibration or displacement under the action of external force in the machining process, so that the machining precision is poor, and a transmission system is damaged. The clamping device comprises a rack, a cross beam and an auxiliary clamping device, lifting guide rails are arranged on the two opposite inner side faces of the rack, the two opposite ends of the cross beam are slidably connected to the lifting guide rails, and the cross beam is driven to ascend or descend along the lifting guide rails. The auxiliary clamping device is installed on the cross beam, and when the cross beam is driven to move by a preset distance, the auxiliary clamping device clamps the lifting guide rail so as to fix the cross beam. Through the design, when the cross beam moves to the preset distance, the auxiliary clamping device can clamp the lifting guide rail so as to fix the cross beam, and the situation that due to displacement or vibration of the cross beam, the machining precision is affected, and a transmission system is damaged is effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical manufacturing design, and in particular to a lifting beam assembly and a moving beam gantry processing center. Background Art

[0002] As a heavy-duty gantry, the large movable beam gantry machining center has a crossbeam that can move up and down, which greatly increases the effective processing height of the gantry, which is 2-3 times that of an ordinary gantry. It has a wide range of applications, including large structural parts, mold manufacturing, casting processing and other industries. The crossbeam of the movable beam gantry machining center can be driven to move up or down according to the height of the processed parts, effectively increasing the processing range in the vertical direction and enabling the processing of more types of parts.

[0003] After the crossbeam of the moving beam gantry machining center moves to the specified position according to the processing requirements, it needs to stop running. At this time, the crossbeam is easily vibrated or displaced by external forces during the processing, resulting in poor processing accuracy and damage to the transmission system. Technical problems.

[0004] Therefore, finding a technical solution that can solve the above technical problems has become an important topic studied by technical personnel in this field. Summary of the invention

[0005] The invention discloses a lifting crossbeam assembly and a moving beam gantry machining center, which are used to solve the technical problem that the existing crossbeam is easily vibrated or displaced by external force during machining, thereby causing poor machining accuracy and damaging the transmission system.

[0006] The present invention provides a lifting beam assembly, comprising a frame, a beam and an auxiliary clamping device;

[0007] Two opposite inner sides of the frame are provided with lifting guide rails, and opposite ends of the crossbeam are slidably connected to the lifting guide rails, and the crossbeam can be driven to rise or fall along the lifting guide rails;

[0008] The auxiliary clamping device is installed on the crossbeam, and when the crossbeam is driven to move to a preset distance, the auxiliary clamping device clamps the lifting guide rail to fix the crossbeam.

[0009] Optionally, there are multiple auxiliary clamping devices, and the multiple auxiliary clamping devices are evenly installed at opposite ends of the beam.

[0010] Optionally, the auxiliary clamping device includes a hydraulic interface, a fixing seat, an elastic member, a mandrel, a pressing plate, a lever module and a clamping plate;

[0011] The fixing seat is fixedly mounted on the crossbeam, the core shaft is movably mounted inside the fixing seat, the core shaft comprises a pressing portion, an upper shaft portion and a lower shaft portion, wherein the upper shaft portion is connected to the top end surface of the pressing portion, the lower shaft portion is connected to the bottom end surface of the pressing portion, and the outer side wall of the pressing portion is arranged in close contact with the inner side wall of the fixing seat;

[0012] The elastic member is sleeved on the lower shaft portion, and one end of the elastic member abuts against the bottom wall of the fixing seat, and the other end of the elastic member abuts against the bottom end surface of the pressing portion;

[0013] The position between the pressing portion and the top wall of the fixing seat is a hydraulic space, the hydraulic interface is installed on the fixing seat and communicated with the hydraulic space, the hydraulic interface is connected to a hydraulic station, and the hydraulic station transports oil to the hydraulic space through the hydraulic interface;

[0014] The upper shaft portion passes through the fixing seat and is connected to a fixing rod, the fixing rod is fixedly connected to the first end of the pressing plate, and the second end of the pressing plate is fixedly connected to the clamping plate;

[0015] The lever module is mounted on the pressing plate and is located between the first end of the pressing plate and the second end of the pressing plate, and the lever module is connected to the crossbeam;

[0016] When the hydraulic station extracts the oil in the hydraulic space through the hydraulic interface, the elastic member drives the core shaft to move upward so that the first end of the pressure plate is lifted. When one end of the pressure plate is lifted, the second end of the pressure plate is pressed downward through the lever module, so that the clamping plate clamps the lifting guide rail, thereby fixing the crossbeam.

[0017] Optionally, the lever module includes a fixing screw, a spherical gasket and a spacer sleeve;

[0018] The pressure plate is provided with a mounting hole, and the mounting hole is located between the first end portion of the pressure plate and the second end portion of the pressure plate. The fixing screw passes through the mounting hole and is fixedly connected to the cross beam. The spherical gasket is sleeved on the fixing screw. The mounting hole is provided with a stepped groove. The spacer is fixedly provided on the stepped groove of the mounting hole and sleeved on the fixing screw. The bottom surface of the spherical gasket is a spherical surface, and the top surface of the spacer is an arcuate surface matching the spherical surface. The spherical surface and the arcuate surface are arranged to fit each other.

[0019] Optionally, the elastic member is a plurality of overlapping butterfly springs.

[0020] Optionally, the hydraulic station is further connected to a solenoid valve group, the hydraulic station is connected to the hydraulic interface via the solenoid valve group, and a pressure sensor for detecting oil pressure is installed on the solenoid valve group.

[0021] Optionally, the clamping plate is provided with an airtight detection hole, the second end of the pressure plate is provided with an airtight detection pipe connected to the airtight detection hole, and the airtight detection pipe is connected to an airtight detection sensor.

[0022] Optionally, the crossbeam is connected to a lifting drive module;

[0023] The lifting drive module is used to drive the crossbeam to rise or fall.

[0024] Optionally, the lifting drive module is an electric cylinder.

[0025] The present invention provides a moving beam gantry machining center, comprising the above-mentioned lifting beam assembly.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] In the lifting beam assembly of the present embodiment, the beam can be driven to rise or fall along the lifting guide rail of the frame, and an auxiliary clamping device is installed on the beam. Through the above design, when the beam moves to a preset distance, the auxiliary clamping device can clamp the lifting guide rail to fix the beam, effectively avoiding the displacement or vibration of the beam that affects the processing accuracy and damages the transmission system. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A structural schematic diagram of a lifting beam assembly provided by an embodiment of the present invention;

[0030] Figure 2 A partial enlarged view of an auxiliary clamping device in a lifting beam assembly provided by an embodiment of the present invention when clamping a lifting guide rail;

[0031] Figure 3 A schematic structural diagram of an auxiliary clamping device in a lifting beam assembly provided by an embodiment of the present invention;

[0032] Figure 4 A schematic cross-sectional view of an auxiliary clamping device in a lifting beam assembly provided by an embodiment of the present invention;

[0033] Illustration: frame 1; crossbeam 2; lifting guide rail 3; auxiliary clamping device 4; fixed seat 5; pressure plate 6; hydraulic interface 7; clamping plate 8; fixing rod 9; lever module 10; airtight detection pipeline 11; core shaft 12; pressing part 13; upper shaft part 14; lower shaft part 15; elastic member 16; airtight detection hole 17; fixing screw 18; spherical gasket 19; spacer 20. DETAILED DESCRIPTION

[0034] The embodiment of the present invention discloses a lifting beam assembly and a moving beam gantry machining center, which are used to solve the technical problem that the existing beam is easily vibrated or displaced by external force during machining, thereby causing poor machining accuracy and damaging the transmission system.

[0035] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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 work are within the scope of protection of the present invention.

[0036] See also Figures 1 to 4 , a lifting beam assembly provided by an embodiment of the present invention comprises a frame 1, a beam 2 and an auxiliary clamping device 4;

[0037] The two opposite inner sides of the frame 1 are provided with lifting rails 3, and the opposite ends of the crossbeam 2 are slidably connected to the lifting rails 3, and the crossbeam 2 can be driven to rise or fall along the lifting rails 3;

[0038] The auxiliary clamping device 4 is installed on the crossbeam 2 , and when the crossbeam 2 is driven to move to a preset distance, the auxiliary clamping device 4 clamps the lifting guide rail 3 to fix the crossbeam 2 .

[0039] In the lifting beam assembly of this embodiment, the beam 2 can be driven to rise or fall along the lifting guide rail 3 of the frame 1, and an auxiliary clamping device 4 is installed on the beam 2. Through the above design, when the beam 2 moves to a preset distance, the auxiliary clamping device 4 can clamp the lifting guide rail 3 to fix the beam 2, effectively avoiding the displacement or vibration of the beam 2, thereby affecting the processing accuracy and damaging the transmission system.

[0040] Furthermore, in order to improve the clamping effect, the number of the auxiliary clamping devices 4 in this embodiment is multiple, and the multiple auxiliary clamping devices 4 are evenly installed at the opposite ends of the beam 2.

[0041] It should be noted that, in this embodiment, the preferred number of auxiliary clamping devices 4 is four. Specifically, two auxiliary clamping devices 4 are installed at the first end of the beam 2, and the other two auxiliary clamping devices 4 are installed at the second end of the beam 2. Through the above design, when the beam 2 stops running, the four auxiliary clamping devices 4 are started at the same time to clamp the lifting guide rail 3, thereby preventing the beam 2 from vibrating or displacing due to external force, ensuring the processing accuracy while ensuring that the transmission system is not damaged.

[0042] Specifically, the auxiliary clamping device 4 in this embodiment includes a hydraulic interface 7, a fixing seat 5, an elastic member 16, a mandrel 12, a pressing plate 6, a lever module 10 and a clamping plate 8;

[0043] The fixing seat 5 is fixedly mounted on the crossbeam 2, and the core shaft 12 is movably mounted inside the fixing seat 5. The core shaft 12 includes a pressing portion 13, an upper shaft portion 14, and a lower shaft portion 15, wherein the upper shaft portion 14 is connected to the top end surface of the pressing portion 13, and the lower shaft portion 15 is connected to the bottom end surface of the pressing portion 13, and the outer side wall of the pressing portion 13 is arranged in close contact with the inner side wall of the fixing seat 5;

[0044] The elastic member 16 is sleeved on the lower shaft portion 15, and one end of the elastic member 16 abuts against the bottom wall of the fixing seat (5), and the other end of the elastic member 16 abuts against the bottom end surface of the pressing portion 13;

[0045] The position between the pressing portion 13 and the top wall of the fixing seat 5 is a hydraulic space, the hydraulic interface 7 is installed on the fixing seat 5 and communicated with the hydraulic space, the hydraulic interface 7 is connected to a hydraulic station, and the hydraulic station transports oil to the hydraulic space through the hydraulic interface 7;

[0046] The upper shaft portion 14 passes through the fixing seat 5 and is connected to a fixing rod 9, the fixing rod 9 is fixedly connected to a first end of the pressing plate 6, and a second end of the pressing plate 6 is fixedly connected to the clamping plate 8;

[0047] The lever module 10 is installed on the pressing plate 6 and is located between the first end of the pressing plate 6 and the second end of the pressing plate 6 . The lever module 10 is connected to the crossbeam 2 .

[0048] It should be noted that when the hydraulic station extracts the oil in the hydraulic space through the hydraulic interface 7, the elastic member 16 drives the core shaft 12 to move upward so that the first end of the pressure plate 6 is lifted. When one end of the pressure plate 6 is lifted, the second end of the pressure plate 6 is pressed down through the lever module 10, so that the clamping plate 8 clamps the lifting guide rail 3, thereby fixing the crossbeam 2.

[0049] When the hydraulic station injects oil into the hydraulic space through the hydraulic interface 7, the oil forces the pressing portion 13 of the core shaft 12 to squeeze the elastic member 16. At this time, the core shaft 12 moves toward the bottom of the fixed seat 5, thereby driving the first end of the pressure plate 6 to move downward. When the first end of the pressure plate 6 moves downward, the second end of the pressure plate 6 is driven to rise through the lever module 10, so that the clamping plate 8 is separated from the lifting guide rail 3. At this time, the beam 2 can be driven to continue to move.

[0050] Furthermore, the lever module 10 in this embodiment includes a fixing screw 18, a spherical gasket 19 and a spacer 20;

[0051] A mounting hole is provided on the pressure plate 6, and the mounting hole is located between the first end of the pressure plate 6 and the second end of the pressure plate 6. The fixing screw 18 passes through the mounting hole and is fixedly connected to the crossbeam 2. The spherical gasket 19 is sleeved on the fixing screw 18. The mounting hole is provided with a stepped groove. The spacer sleeve 20 is fixedly provided on the stepped groove of the mounting hole and sleeved on the fixing screw 18. The bottom surface of the spherical gasket 19 is a spherical surface, and the top surface of the spacer sleeve 20 is an arcuate surface matching the spherical surface. The spherical surface and the arcuate surface are arranged to fit each other.

[0052] It should be noted that, through the above design, when the first end of the pressure plate 6 is lifted, the pressure plate 6 squeezes the spherical gasket 19 through the above-mentioned spacer sleeve 20. Since the arc surface of the spacer sleeve 20 cooperates with the spherical gasket 19, the second end of the pressure plate 6 can be pressed downward when the first end of the pressure plate 6 is lifted, so that the clamping plate 8 can clamp the lifting guide rail 3.

[0053] Furthermore, the lever module 10 in this embodiment is preferably disposed close to the second end of the pressing plate 6 .

[0054] It should be noted that, through the above design, the entire pressing plate 6 can be regarded as a force-saving lever, which is conducive to using less force to press the second end of the pressing plate 6 downward.

[0055] Furthermore, the elastic member 16 in this embodiment is a plurality of overlapping butterfly springs.

[0056] It should be noted that the present embodiment does not limit the specific type of the elastic member 16 , and designers can select a suitable type of elastic member 16 according to actual conditions.

[0057] Furthermore, the hydraulic station in this embodiment is also connected to a solenoid valve group, and the hydraulic station is connected to the hydraulic interface 7 through the solenoid valve group. A pressure sensor for detecting oil pressure is installed on the solenoid valve group.

[0058] It should be noted that the solenoid valve group is used to control the on and off of the oil and the flow of the oil. When the hydraulic station transports oil to the hydraulic space through the hydraulic interface 7, if the pressure sensor detects that the oil pressure is insufficient and the clamping plate 8 cannot release the lifting guide rail 3, an alarm device can be set to notify the operator to increase the oil delivery pressure of the hydraulic station.

[0059] Furthermore, the clamping plate 8 in this embodiment is provided with an airtight detection hole 17, and the second end of the pressing plate 6 is provided with an airtight detection pipe 11 connected to the airtight detection hole 17, and the airtight detection pipe 11 is connected to an airtight detection sensor.

[0060] It should be noted that when the clamping plate 8 completely clamps the lifting guide rail 3, there is no gap between the clamping plate 8 and the lifting guide rail 3. At this time, the air-tightness detection sensor detects the air pressure as a normal value. If there is a gap between the clamping plate 8 and the lifting rail when clamped, the air-tightness detection sensor detects an abnormal pressure, which proves that the clamping plate 8 has not completely clamped the lifting guide rail 3. The alarm device can be set to temporarily shut down the machine until the auxiliary clamping device 4 is installed.

[0061] Furthermore, the crossbeam 2 in this embodiment is connected to a lifting drive module;

[0062] The lifting drive module is used to drive the crossbeam 2 to rise or fall.

[0063] It should be noted that, in this embodiment, the crossbeam 2 is driven to move by the lifting drive module.

[0064] Specifically, the lifting drive module in this embodiment is an electric cylinder.

[0065] A movable beam gantry machining center provided by an embodiment of the present invention includes the above-mentioned lifting beam assembly.

[0066] In the lifting beam assembly of the moving beam gantry machining center of the present embodiment, the beam 2 can be driven to rise or fall along the lifting guide rail 3 of the frame 1, and an auxiliary clamping device 4 is installed on the beam 2. Through the above design, when the beam 2 moves to a preset distance, the auxiliary clamping device 4 can clamp the lifting guide rail 3 to fix the beam 2, effectively avoiding the displacement or vibration of the beam 2, thereby affecting the machining accuracy and damaging the transmission system.

[0067] The above is a detailed introduction to a lifting beam assembly and a moving beam gantry machining center provided by the present invention. For a person skilled in the art, according to the idea of ​​the embodiments of the present invention, there may be changes in the specific implementation method and the scope of application. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A lifting beam assembly, characterized in that: It comprises a frame (1), a crossbeam (2) and an auxiliary clamping device (4); Two opposite inner side surfaces of the frame (1) are provided with lifting guide rails (3), and opposite ends of the crossbeam (2) are slidably connected to the lifting guide rails (3), so that the crossbeam (2) can be driven to rise or fall along the lifting guide rails (3); The auxiliary clamping device (4) is installed on the crossbeam (2), and when the crossbeam (2) is driven to move to a preset distance, the auxiliary clamping device (4) clamps the lifting guide rail (3) to fix the crossbeam (2).

2. The lifting beam assembly according to claim 1, characterized in that: The number of the auxiliary clamping devices (4) is multiple, and the multiple auxiliary clamping devices (4) are evenly installed at the opposite ends of the crossbeam (2).

3. The lifting beam assembly according to claim 1, characterized in that: The auxiliary clamping device (4) comprises a hydraulic interface (7), a fixing seat (5), an elastic member (16), a core shaft (12), a pressure plate (6), a lever module (10) and a clamping plate (8); The fixing seat (5) is fixedly mounted on the crossbeam (2), the core shaft (12) is movably mounted inside the fixing seat (5), the core shaft (12) comprises a pressing portion (13), an upper shaft portion (14) and a lower shaft portion (15), wherein the upper shaft portion (14) is connected to the top end surface of the pressing portion (13), the lower shaft portion (15) is connected to the bottom end surface of the pressing portion (13), and the outer side wall of the pressing portion (13) is arranged to fit the inner side wall of the fixing seat (5); The elastic member (16) is sleeved on the lower shaft portion (15), and one end of the elastic member (16) abuts against the bottom wall of the fixing seat (5), and the other end of the elastic member (16) abuts against the bottom end surface of the pressing portion (13); The position between the pressing portion (13) and the top wall of the fixing seat (5) is a hydraulic space, the hydraulic interface (7) is mounted on the fixing seat (5) and communicates with the hydraulic space, the hydraulic interface (7) is connected to a hydraulic station, and the hydraulic station transports oil to the hydraulic space through the hydraulic interface (7); The upper shaft portion (14) passes through the fixing seat (5) and is connected to a fixing rod (9), the fixing rod (9) is fixedly connected to a first end of the pressing plate (6), and the second end of the pressing plate (6) is fixedly connected to the clamping plate (8); The lever module (10) is mounted on the pressing plate (6) and is located between a first end of the pressing plate (6) and a second end of the pressing plate (6), and the lever module (10) is connected to the crossbeam (2); When the hydraulic station extracts the oil in the hydraulic space through the hydraulic interface (7), the elastic member (16) drives the core shaft (12) to move upward so that the first end of the pressure plate (6) is lifted. When one end of the pressure plate (6) is lifted, the second end of the pressure plate (6) is pressed downward through the lever module (10), so that the clamping plate (8) clamps the lifting guide rail (3), thereby fixing the crossbeam (2).

4. The lifting beam assembly according to claim 3, characterized in that: The lever module (10) comprises a fixing screw (18), a spherical gasket (19) and a spacer sleeve (20); The pressure plate (6) is provided with a mounting hole, wherein the mounting hole is located between a first end portion of the pressure plate (6) and a second end portion of the pressure plate (6); the fixing screw (18) passes through the mounting hole and is fixedly connected to the cross beam (2); the spherical gasket (19) is sleeved on the fixing screw (18); the mounting hole is provided with a stepped groove; the spacer (20) is fixedly arranged on the stepped groove of the mounting hole and sleeved on the fixing screw (18); the bottom surface of the spherical gasket (19) is a spherical surface; the top surface of the spacer (20) is an arcuate surface matching the spherical surface; the spherical surface and the arcuate surface are arranged to fit each other.

5. The lifting beam assembly according to claim 3, characterized in that: The elastic member (16) is a plurality of overlapping butterfly springs.

6. The lifting beam assembly according to claim 3, characterized in that: The hydraulic station is also connected to a solenoid valve group, and the hydraulic station is connected to the hydraulic interface (7) via the solenoid valve group. A pressure sensor for detecting oil pressure is installed on the solenoid valve group.

7. The lifting beam assembly according to claim 3, characterized in that: The clamping plate (8) is provided with an airtight detection hole (17), the second end of the pressing plate (6) is provided with an airtight detection pipe (11) connected to the airtight detection hole (17), and the airtight detection pipe (11) is connected to an airtight detection sensor.

8. The lifting beam assembly according to claim 1, characterized in that: The crossbeam (2) is connected to a lifting drive module; The lifting drive module is used to drive the crossbeam (2) to rise or fall.

9. The lifting beam assembly according to claim 8, characterized in that: The lifting drive module is an electric cylinder.

10. A moving beam gantry machining center, characterized in that: The invention comprises a lifting beam assembly as claimed in any one of claims 1 to 9.

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