Fixed-beam pentahedral gantry numerical control boring and milling machine

Abstract

The invention relates to the technical field of boring and milling machines, in particular to a fixed-beam pentahedral gantry numerical control boring and milling machine which is characterized in that a machined part is placed on a workbench, then clamped and limited through a clamping mechanism and finally machined through a boring and milling cutter, and chippings generated by machining are blown and cleaned through an arranged auxiliary accessory; the boring and milling cutter is arranged on the working table to ensure that the boring and milling cutter smoothly carries out deep groove or hole machining work on the machined part, the side edge of the machined part is limited and clamped through a clamping screw in the clamping mechanism, position looseness in the machining process is avoided, and a bearing column is used in cooperation with a strip-shaped loading groove in the working table, so that the machining efficiency is improved. Adaptive limiting and clamping work can be carried out according to the specification and size of an actual machined part, that is, the position of a bearing column body is flexibly adjusted, and the number is increased or decreased according to actual requirements; and the air spraying nozzle in the auxiliary accessory provides a cleaning effect on chippings accumulated on the machined part in the machining process.

Description

Technical Field

[0001] The invention relates to the technical field of boring and milling machines, in particular to a fixed-beam pentahedron gantry numerically controlled boring and milling machine. Background Art

[0002] During product machining, a boring and milling machine is a mechanical structure used to machine the surface of a product. A boring and milling machine generally consists of a base, a frame, a boring and milling cutter, and a fixture. The boring and milling cutter is mounted on the frame, and the fixture is mounted on the base. The product to be machined is placed on the fixture, and the fixture is then moved under the boring and milling cutter, which moves downward to machine the workpiece surface.

[0003] When a gantry CNC boring and milling machine processes a workpiece, for milling the workpiece placed on the worktable, during the milling groove or hole processing process, for grooves or holes with smaller depths, the workpiece is generally placed directly on the worktable and processed by controlling the tool. However, when deeper grooves or holes need to be processed, the position of the workpiece may be offset due to the contact between the tool and the workpiece during the processing process, so the workpiece needs to be positioned. The existing clamping and positioning work is more troublesome, and when deep grooves or holes are processed, more debris is generated. The debris accumulated on the workpiece needs to be cleaned in time to avoid affecting the processing of the workpiece.

[0004] To this end, the present invention proposes a fixed-beam pentahedron gantry CNC boring and milling machine for solving the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a fixed-beam pentahedron gantry CNC boring and milling machine to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a fixed-beam pentahedron gantry CNC boring and milling machine, comprising a gantry frame and a conveying device, wherein the gantry frame is connected to the boring and milling tool, and a workbench is provided on the conveying device;

[0007] Strip-shaped loading troughs are equidistantly arranged on the top surface of the workbench, and clamping positioning grooves are equidistantly arranged on both sides of the inner cavity of the strip-shaped loading trough. A workpiece is placed on the workbench, and a clamping mechanism is arranged in the strip-shaped loading trough. The clamping mechanism positions the workpiece, and the clamping mechanism is connected to the auxiliary accessories.

[0008] Preferably, the clamping mechanism includes a bearing column, a cylindrical threaded cavity, an installation stud, a disc-shaped handle, a loading screw groove, a loading screw, a fixing plate, a clamping screw, an adjusting handle, an auxiliary rubber pad and a stabilizing assembly; the bearing column is arranged in a clamping positioning groove, and a cylindrical threaded cavity is provided at the top end of the clamping positioning groove, the cylindrical threaded cavity is threadedly connected to the installation stud, a disc-shaped handle is fixedly provided at the top end of the installation stud, and a loading screw groove is provided at the center position of the top end of the disc-shaped handle.

[0009] Preferably, the loading screw groove is threadedly connected to the loading screw rod, a fixing plate is fixedly provided at the top end of the loading screw rod, and a clamping screw rod is threadedly provided through the fixing plate rod.

[0010] Preferably, a regulating handle is fixedly provided at one end of the clamping screw, and an auxiliary rubber pad is fixedly provided at the other end of the clamping screw.

[0011] Preferably, the end face shape of the bearing column is set to be square, and the side length of the end face of the bearing column is set to be equal to the slot width of the clamping positioning slot, and the bearing column is positioned by a set stabilizing component.

[0012] Preferably, the stabilizing assembly includes a connecting groove body, a receiving groove, a positioning block, a connecting column, a spherical surface, a connecting plate, a positioning screw groove, an auxiliary spring, a through-hole body and a mounting screw; the connecting groove body is symmetrically arranged in the supporting column, and the connecting groove body is connected to the cylindrical threaded cavity in the supporting column, and a receiving groove is provided at one end notch of the connecting groove body, the positioning block is arranged in the receiving groove, and a connecting column is fixedly provided at one end of the positioning block, and an auxiliary spring is fixedly provided at the same end of the positioning block and the connecting column, and a connecting plate is fixedly provided at the other end of the auxiliary spring, a circular hole is provided in the connecting plate, and the connecting column passes through the circular hole.

[0013] Preferably, a spherical surface is provided on the end surface of one end of the connecting column, and the positioning block is adapted to be engaged with the clamping positioning groove in the strip-shaped loading slot.

[0014] Preferably, a positioning screw groove is provided on one side of the connecting plate, the through hole body is provided in the supporting column, and the through hole body is connected to the accommodating groove, the through hole body and the positioning screw groove on the connecting plate are provided in corresponding positions and the same number of groups, and the mounting screw passes through the through hole body and is threadedly connected to the positioning screw groove.

[0015] Preferably, the clamping mechanism is arranged at the top of the fixed plate, and the clamping mechanism includes a supporting screw barrel, a supporting stud, a connecting plate sleeve, a fastening screw hole, a fastening screw, an adjusting slide plate, a fixing slot, a fixing screw, a bearing plate, an air nozzle, an air hose and a positioning clamp; the supporting screw barrel is fixedly arranged at the top of the fixed plate, and the supporting screw barrel is threadedly connected to the supporting stud, a connecting plate sleeve is fixedly arranged at the top of the support stud, the adjusting slide plate is movably inserted in the connecting plate sleeve, a bearing plate is fixedly arranged on one side of the top of the connecting plate sleeve, an air nozzle is arranged on the bearing plate, and the air nozzle is arranged at one end of the air hose, and the air nozzle is fixed by a positioning clamp.

[0016] Preferably, a fastening screw hole is provided on one side of the supporting screw barrel, and the fastening screw hole is threadedly connected to the fastening screw; a fixing slot is provided on the side of the regulating slide, and the fixing slots are equidistantly arranged in a straight line, the fixing screw thread connection is arranged on one side of the connecting plate sleeve, and one end of the fixing screw is threadedly connected to the fixing slot; the supporting plate is arranged to be tilted downward.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The fixed-beam pentahedron gantry CNC boring and milling machine designed by the present invention comprises a gantry frame and a conveying device, the gantry frame is connected to the boring and milling tool, and a workbench is provided on the conveying device; wherein strip-shaped loading troughs are equidistantly provided on the top surface of the workbench, and clamping and positioning grooves are equidistantly provided on both sides of the inner cavity of the strip-shaped loading troughs, a workpiece is placed on the workbench, a clamping mechanism is provided in the strip-shaped loading troughs, the clamping mechanism positions the workpiece, and the clamping mechanism is connected to the auxiliary accessories; in this solution, the workpiece is placed on the workbench, then clamped and limited by the clamping mechanism, and finally processed by the boring and milling tool, and in this process, the workpiece is also positioned by the auxiliary accessories provided The air blowing function is provided to clean the debris generated during the machining process, ensuring that the boring and milling tools can smoothly perform deep processing of grooves or holes on the workpiece. The clamping screw in the clamping mechanism is used to limit and clamp the side of the workpiece to avoid loosening during the machining process. The supporting column is used in conjunction with the strip loading trough on the workbench to adapt the limit clamping work according to the actual size of the workpiece, that is, the position of the supporting column is flexibly adjusted, and the number is added or reduced according to actual needs. The air nozzle in the auxiliary accessory provides a cleaning effect for the debris accumulated on the workpiece during the machining process, so as to avoid affecting the machining of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structural connection of the gantry CNC boring and milling machine of the present invention;

[0020] Figure 2 for Figure 1 A magnified schematic diagram of the structural connection at center A;

[0021] Figure 3 This is a schematic diagram of the connection between the workbench, the clamping mechanism, and the auxiliary accessories structure of the present invention;

[0022] Figure 4 for Figure 3 A magnified schematic diagram of the structural connection at point B in the middle;

[0023] Figure 5 This is an exploded left side schematic diagram of the connection between the clamping mechanism and the auxiliary accessory structure of the present invention;

[0024] Figure 6 for Figure 5 A magnified schematic diagram of the structural connection at point C in the middle;

[0025] Figure 7 The right side schematic diagram of the connection between the clamping mechanism and the auxiliary accessory structure of the present invention;

[0026] Figure 8 for Figure 7 A magnified schematic diagram of the structural connection at point D in the middle;

[0027] Figure 9 for Figure 7 Enlarged schematic diagram of the structural connection at E in the middle;

[0028] Figure 10 It is a partial cross-sectional diagram of the internal structure connection of the bearing column of the present invention;

[0029] Figure 11 for Figure 10 Enlarged schematic diagram of the structural connection at F in the middle.

[0030] Figure: gantry 1, boring and milling tool 2, conveyor 3, worktable 4, workpiece 5, strip-shaped loading trough 6, clamping positioning groove 61, bearing column 701, cylindrical threaded cavity 702, mounting stud 703, disc-shaped handle 704, loading screw groove 705, loading screw 706, fixing plate 707, clamping screw 708, regulating handle 709, auxiliary rubber pad 710, connecting trough 801, receiving groove 802, positioning block 803 , connecting column 804, spherical surface 805, connecting plate 806, positioning screw groove 807, auxiliary spring 808, through-hole body 809, mounting screw 810, support screw barrel 901, support stud 902, connecting plate sleeve 903, fastening screw hole 904, fastening screw 905, regulating slide plate 906, fixing slot 907, fixing screw 908, bearing plate 909, air nozzle 910, air supply hose 911, positioning clamp 912. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative efforts on the premise that the embodiments in the present application are described belong to the protection scope of the present application.

[0032] Embodiment one: please refer to Figures 1-11 The embodiment of the present application is a kind of fixed beam five-faced gantry numerical control boring and milling machine, including gantry body 1 and conveying device 3, gantry body 1 is connected with boring and milling cutter 2, and workbench 4 is arranged on conveying device 3;Wherein equidistantly arranged on the top surface of workbench 4 is strip-shaped loading groove body 6, equidistantly arranged on both sides of the inner cavity of strip-shaped loading groove body 6 is clamping positioning groove 61, workbench 4 is placed with workpiece 5, strip-shaped loading groove body 6 is provided with clamping mechanism, clamping mechanism positions workpiece 5, and clamping mechanism is connected with auxiliary accessory.

[0033] In the scheme, workpiece 5 is placed on workbench 4, then clamped and limited by clamping mechanism, and finally processed by boring and milling cutter 2, in the process, auxiliary accessory is also provided to provide a blowing cleaning effect for the debris generated by processing, to ensure that boring and milling cutter 2 can smoothly process the depth of groove or hole of workpiece 5, wherein clamping screw 708 in clamping mechanism is used to limit and clamp the side of workpiece 5, to avoid position loosening during processing, and the cooperation of carrier column 701 and strip-shaped loading groove body 6 on workbench 4 can adapt to the size of actual workpiece 5 for clamping work, that is, the position of carrier column 701 can be flexibly adjusted, and the number can be added or reduced according to actual needs;The debris accumulated on workpiece 5 during processing can be cleaned by blowing nozzle 910 in auxiliary accessory, to avoid affecting the processing of workpiece 5.

[0034] For the positioning of the workpiece 5, the supporting column 701 is first inserted into the strip loading slot 6 and placed in a suitable position, and then the supporting column 701 is positioned by the stabilizing component, wherein the clamping mechanism includes the supporting column 701, the cylindrical threaded cavity 702, the mounting stud 703, the disc handle 704, the loading screw groove 705, the loading screw 706, the fixing plate 707, the clamping screw 708, the regulating handle 709, the auxiliary rubber pad 710 and the stabilizing component; the supporting column 701 is set in the clamping positioning groove 61, and the cylindrical threaded cavity 702 is set at the top of the clamping positioning groove 61, and the cylindrical threaded cavity 702 is threadedly connected to the mounting stud 703, and the mounting stud 703 is screwed to the mounting stud 703. The top of the disc-shaped handle 704 is fixedly provided, and a loading screw groove 705 is provided at the center position of the top of the disc-shaped handle 704; the loading screw groove 705 is threadedly connected to the loading screw 706, and the top of the loading screw 706 is fixedly provided with a fixing plate 707, and a clamping screw 708 is threadedly provided through the fixing plate 707; one end of the clamping screw 708 is fixedly provided with a regulating handle 709, and the other end of the clamping screw 708 is fixedly provided with an auxiliary rubber pad 710; the end face shape of the supporting column 701 is set to be square, and the side length of the end face of the supporting column 701 is set to be equal to the notch width of the clamping positioning groove 61, and the supporting column 701 is positioned by a stabilizing component provided; the stabilizing component The connecting plate 806 includes a connecting groove 801, a receiving groove 802, a positioning block 803, a connecting column 804, a spherical surface 805, a connecting plate 806, a positioning screw groove 807, an auxiliary spring 808, a through-hole body 809 and a mounting screw 810; the connecting groove 801 is symmetrically arranged in the supporting column 701, and the connecting groove 801 is connected to the cylindrical threaded cavity 702 in the supporting column 701, and the notch at one end of the connecting groove 801 is provided with a receiving groove 802, the positioning block 803 is provided in the receiving groove 802, and one end of the positioning block 803 is fixedly provided with a connecting column 804, and an auxiliary spring 808 is fixedly provided at the same end of the positioning block 803 and the connecting column 804, and the auxiliary spring A connecting plate 806 is fixedly provided at the other end of 808, a circular hole is provided in the connecting plate 806, and the connecting column 804 passes through the circular hole; a spherical surface 805 is provided on the end face of one end of the connecting column 804, and the positioning block 803 is adapted to be engaged with the clamping positioning groove 61 in the strip loading slot 6; a positioning screw groove 807 is provided on one side of the connecting plate 806, and a through hole body 809 is provided in the supporting column 701, and the through hole body 809 is connected to the accommodating groove 802, and the through hole body 809 and the positioning screw groove 807 on the connecting plate 806 have corresponding positions and the same number of groups, and the mounting screw 810 passes through the through hole body 809 and is threadedly connected to the positioning screw groove 807.

[0035] When the bottom end of the supporting column 701 contacts the bottom end of the strip-shaped loading slot 6, the positioning blocks 803 arranged on both sides of the supporting column 701 are aligned with the clamping positioning grooves 61 at the corresponding positions in the strip-shaped loading slot 6, and then the supporting column 701 needs to be positioned, that is, the mounting stud 703 is threadedly connected to the cylindrical threaded cavity 702 at the top of the supporting column 701, that is, the staff manually rotates the disc-shaped handle 704 to rotate the mounting stud 703, so that the mounting stud 703 is threadedly connected to the cylindrical threaded cavity 702 until the bottom end of the mounting stud 703 squeezes the connecting column 804, wherein a spherical surface 805 is provided at one end of the connecting column 804. The purpose of providing the spherical surface 805 here is to facilitate the mounting stud 703 to squeeze the end of the connecting column 804. When the connecting column 804 is squeezed, the connecting column 804 will be pushed outward for positioning. The clamping block 803 causes the positioning clamping block 803 to be clamped into the clamping positioning groove 61 at the corresponding position in the strip-shaped loading slot body 6, thereby realizing the positioning work of the supporting column 701. During the process of the positioning clamping block 803 being pushed, the auxiliary spring 808 connected to the positioning clamping block 803 is in a stretched state, that is, after the subsequent processing of the workpiece 5 is completed, the positioning work of the supporting column 701 is released, and the mounting stud 703 is rotated in the opposite direction by the disc-shaped handle 704, so that the squeezing of the mounting stud 703 on the connecting column 804 is released. At the same time, the pushing of the connecting column 804 on the positioning clamping block 803 is released, and the positioning clamping block 803 is reset under the pulling back action of the auxiliary spring 808, so that the positioning clamping block 803 is separated from the clamping positioning groove 61 and then returned to the accommodating groove 802 on the supporting column 701, and the positioning work of the supporting column 701 can be released.

[0036] After the supporting column 701 is positioned, the clamping screw 708 is installed, that is, the loading screw 706 at the bottom end of the fixed plate 707 is threadedly connected to the loading screw groove 705 at the top of the disc-shaped handle 704, so that the clamping screw 708 set in the fixed plate 707 reaches the appropriate position, that is, the extrusion end of the clamping screw 708 is directed toward the side wall of the workpiece 5, and then the clamping screw 708 is rotated by the regulating handle 709 so that the other end of the clamping screw 708 can extrude and limit the side wall of the workpiece 5. An auxiliary rubber pad 710 is also provided at the extrusion end of the clamping screw 708. The function of providing the auxiliary rubber pad 710 here is, on the one hand, to provide an anti-slip effect for the extrusion and limiting work of the clamping screw 708 on the workpiece 5, which can further improve its limiting effect. The auxiliary rubber pad 710 can also provide a protective effect, that is, when the side wall of the workpiece 5 is squeezed by the clamping screw 708, it can avoid extrusion scratch damage due to excessive squeezing, thereby playing a positive role in protecting the body quality of the workpiece 5; wherein the loading screw 706 at the bottom end of the fixed plate 707 is threadedly connected with the loading screw groove 705 at the top of the disc-shaped handle 704, on the one hand, so that the fixed plate 707 and the disc-shaped handle 704 both have a disassembly and assembly function, which can provide convenience for subsequent disassembly and maintenance as well as daily disassembly and transportation work; on the other hand, the threaded rotation connection method can provide a regulating effect on the position and direction of the clamping screw 708 in the fixed plate 707, that is, improve the flexibility of the clamping screw 708 in the extrusion work of the workpiece 5.

[0037] In the process of processing the workpiece 5 by the boring and milling cutter 2, if there are more debris accumulated on the workpiece 5, it needs to be cleaned in time to avoid causing more debris accumulation, thereby avoiding affecting the processing quality of the workpiece 5, the auxiliary accessory is connected on the top of the fixed plate 707, the clamping mechanism is arranged on the top of the fixed plate 707, and the clamping mechanism comprises a supporting cylinder 901, a supporting stud 902, a connecting plate sleeve 903, a fastening screw hole 904, a fastening screw 905, a control sliding plate 906, a fixed clamping groove 907, a fixed screw 908, a bearing plate 909, a blowing nozzle 910, a gas hose 911 and a positioning clamp 912; the supporting cylinder 901 is fixedly arranged at the top end of the fixed plate 707, and the supporting cylinder 901 is in threaded connection with the supporting stud 902, the connecting plate sleeve 903 is fixedly arranged at the top end of the supporting stud 902, the control sliding plate 906 is movably inserted into the connecting plate sleeve 903, the bearing plate 909 is fixedly arranged at one side of the top end of the connecting plate sleeve 903, the blowing nozzle 910 is arranged on the bearing plate 909, and the blowing nozzle 910 is arranged at one end of the gas hose 911, and the blowing nozzle 910 is fixed by the positioning clamp 912; the fastening screw hole 904 is arranged on one side of the supporting cylinder 901, and the fastening screw hole 904 is in threaded connection with the fastening screw 905; the fixed clamping groove 907 is arranged on the side of the control sliding plate 906, and the fixed clamping grooves 907 are arranged in a straight line at equal intervals, the fixed screw 908 is in threaded connection with one side of the connecting plate sleeve 903, and one end of the fixed screw 908 is in clamping connection with the fixed clamping groove 907; the bearing plate 909 is arranged in a downward inclination; wherein the supporting stud 902 at the bottom end of the connecting plate sleeve 903 is in threaded connection with the supporting cylinder 901 at the top of the fixed plate 707, until the position of the blowing nozzle 910 reaches a suitable position, that is, the blowing nozzle 910 is arranged in a position facing, then in order to further improve the fastening of the threaded connection between the supporting stud 902 and the supporting cylinder 901, the fastening screw 905 is arranged to extrude and lock the side wall of the supporting stud 902, then according to the actual demand, the height position of the blowing nozzle 910 is adjusted, that is, the control sliding plate 906 and the connecting plate sleeve 903 are used together to achieve the adjustment, the bearing plate 909 is arranged on one side of the top end of the control sliding plate 906, and the blowing nozzle 910 is arranged on the bearing plate 909, that is, the control of the control sliding plate 906 is to adjust the height position of the blowing nozzle 910, after the blowing nozzle 910 is adjusted to a suitable position, the control sliding plate 906 is positioned, that is, the fixed screw 908 is in clamping connection with the fixed clamping groove 907 at the corresponding position of the control sliding plate 906, so that the control sliding plate 906 is quickly positioned, that is, the position of the blowing nozzle 910 is positioned.

[0038] The debris accumulated on the workpiece 5 is cleaned by air jets, and the supporting plate 909 is tilted downward, so that the air ejected from the air nozzle 910 is also tilted downward, which provides a cleaning operation for the debris accumulated on the top of the workpiece 5; when cleaning the accumulated debris, the air ejected from the air nozzle 910 can also have a corresponding cooling effect on the workpiece 5 or the boring and milling tool 2; under long-term processing, the debris cleaned from the workpiece 5 or the debris generated during the processing will also fall onto the workbench 4 and will also accumulate in the strip-shaped loading slot 6 on the workbench 4. That is, when it is necessary to clean the debris in the strip loading trough 6, after the positioning of the supporting column 701 is released, the supporting column 701 can be taken out of the strip loading trough 6, and then inserted into the slot of the strip loading trough 6 at one end of the workbench 4, so that the bottom end of the supporting column 701 contacts the bottom end of the strip loading trough 6, and then the supporting column 701 is slid in the strip loading trough 6 to clean out the debris accumulated in the strip loading trough 6, until the supporting column 701 slides out from the other end of the strip loading trough 6, and the debris in the strip loading trough 6 is cleaned.

[0039] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A fixed-beam pentahedron gantry CNC boring and milling machine, comprising a gantry frame (1) and a conveying device (3), wherein the gantry frame (1) is connected to a boring and milling tool (2), and a workbench (4) is provided on the conveying device (3); Its characteristics are: Strip-shaped loading troughs (6) are equidistantly arranged on the top surface of the workbench (4), and clamping positioning grooves (61) are equidistantly arranged on both sides of the inner cavity of the strip-shaped loading trough (6). A workpiece (5) is placed on the workbench (4), and a clamping mechanism is arranged in the strip-shaped loading trough (6). The clamping mechanism positions the workpiece (5), and the clamping mechanism is connected to auxiliary accessories.

2. The fixed beam pentahedron gantry CNC boring and milling machine according to claim 1, characterized in that: The clamping mechanism comprises a bearing column (701), a cylindrical threaded cavity (702), an installation stud (703), a disc-shaped handle (704), a loading screw groove (705), a loading screw (706), a fixing plate (707), a clamping screw (708), an adjusting handle (709), an auxiliary rubber pad (710) and a stabilizing component; the bearing column (701) is arranged in the clamping positioning groove (61), and a cylindrical threaded cavity (702) is arranged at the top end of the clamping positioning groove (61), the cylindrical threaded cavity (702) is threadedly connected to the installation stud (703), a disc-shaped handle (704) is fixedly arranged at the top end of the installation stud (703), and a loading screw groove (705) is arranged at the center position of the top end of the disc-shaped handle (704).

3. The fixed beam pentahedron gantry CNC boring and milling machine according to claim 2, characterized in that: The loading screw groove (705) is threadedly connected to the loading screw rod (706), a fixing plate (707) is fixedly provided at the top end of the loading screw rod (706), and a clamping screw rod (708) is threadedly provided through the fixing plate (707).

4. The fixed beam pentahedron gantry CNC boring and milling machine according to claim 2, characterized in that: One end of the clamping screw (708) is fixedly provided with a regulating handle (709), and the other end of the clamping screw (708) is fixedly provided with an auxiliary rubber pad (710).

5. The fixed beam pentahedron gantry CNC boring and milling machine according to claim 2, characterized in that: The end face shape of the bearing column (701) is set to be square, and the side length of the end face of the bearing column (701) is set to be equal to the slot width of the clamping positioning slot (61), and the bearing column (701) is positioned by a set stabilizing component.

6. The fixed beam pentahedron gantry CNC boring and milling machine according to claim 2, characterized in that: The stabilizing assembly comprises a connecting groove (801), a receiving groove (802), a positioning block (803), a connecting column (804), a spherical surface (805), a connecting plate (806), a positioning screw groove (807), an auxiliary spring (808), a through hole (809) and a mounting screw (810); the connecting groove (801) is symmetrically arranged in the bearing column (701), and the connecting groove (801) is connected to the cylindrical threaded cavity (702) in the bearing column (701). A receiving groove (802) is provided at a notch at one end of the body (801), the positioning block (803) is provided in the receiving groove (802), and a connecting column (804) is fixedly provided at one end of the positioning block (803), and an auxiliary spring (808) is fixedly provided at the same end of the positioning block (803) and the connecting column (804), and a connecting plate (806) is fixedly provided at the other end of the auxiliary spring (808), a circular hole is provided in the connecting plate (806), and the connecting column (804) passes through the circular hole.

7. The fixed beam pentahedron gantry CNC boring and milling machine according to claim 6, characterized in that: A spherical surface (805) is provided on the end surface of one end of the connecting column (804), and the positioning block (803) is adapted to be clamped with the clamping positioning groove (61) in the strip-shaped loading slot (6).

8. The fixed beam pentahedron gantry CNC boring and milling machine according to claim 6, characterized in that: A positioning screw groove (807) is provided on one side of the connecting plate (806), the through hole body (809) is provided in the bearing column (701), and the through hole body (809) is connected to the accommodating groove (802), the through hole body (809) and the positioning screw groove (807) on the connecting plate (806) are provided at corresponding positions and have the same number of groups, and the mounting screw (810) passes through the through hole body (809) and is threadedly connected to the positioning screw groove (807).

9. The fixed beam pentahedron gantry CNC boring and milling machine according to claim 1, characterized in that: The clamping mechanism is arranged on the top of the fixed plate (707), and the clamping mechanism includes a supporting screw barrel (901), a supporting stud (902), a connecting plate sleeve (903), a fastening screw hole (904), a fastening screw (905), an adjusting slide plate (906), a fixing slot (907), a fixing screw (908), a bearing plate (909), an air nozzle (910), an air delivery hose (911) and a positioning clamp (912); the supporting screw barrel (901) is fixedly arranged on the top of the fixed plate (707), and the supporting screw barrel (901) It is threadedly connected to the support stud (902), a connecting plate sleeve (903) is fixedly provided at the top of the support stud (902), the regulating slide plate (906) is movably inserted into the connecting plate sleeve (903), a bearing plate (909) is fixedly provided on one side of the top of the connecting plate sleeve (903), an air nozzle (910) is provided on the bearing plate (909), and the air nozzle (910) is provided at one end of the air delivery hose (911), and the air nozzle (910) is fixed by a positioning clamp (912).

10. The fixed beam pentahedron gantry CNC boring and milling machine according to claim 9, characterized in that: A fastening screw hole (904) is provided on one side of the supporting screw barrel (901), and the fastening screw hole (904) is adapted to be threadedly connected to the fastening screw (905); a fixing slot (907) is provided on the side of the regulating slide plate (906), and the fixing slots (907) are arranged in a straight line at equal intervals; the fixing screw (908) is threadedly connected and arranged on one side of the connecting plate sleeve (903), and one end of the fixing screw (908) is adapted to be snap-fitted to the fixing slot (907); the bearing plate (909) is arranged to be tilted downward.

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