Numerical control bridge type overhead beam movable planer type milling machine

Abstract

The invention discloses a numerical control bridge type elevated cross beam movable planer type milling machine, which relates to the technical field of planer type milling machines, and comprises a base workbench, a gantry stand column is arranged on the base workbench, a gantry cross beam is arranged on the gantry stand column, a spindle box is arranged on the gantry cross beam, and the bottom of the spindle box is fixedly connected with a cutter joint. And the spindle box is provided with a quick assembly. A quick-release block is locked in a quick-release cavity through a sliding rod, so that the effect of quickly mounting and adjusting the shell is achieved, and compared with an existing mode that a worker needs to loosen a screw of a milling cutter for replacing the milling cutter, the replacement speed of the milling cutter can be increased; and in addition, the situation that the milling cutter is instably installed on the spindle box by the worker can be avoided, the milling cutter can be replaced when the adjusting shell is not installed on the spindle box, and then the convenience of replacing the milling cutter by the worker can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gantry milling machines, and more particularly to a numerically controlled bridge-type overhead beam moving gantry milling machine. Background Art

[0002] On the production line of the intelligent manufacturing equipment industry, for manufacturing some large-scale equipment, as a large-scale precision machining equipment, gantry milling machines are widely used in the fields of intelligent manufacturing equipment industries such as aerospace, shipbuilding, and heavy machinery, and are mainly used for high-precision milling, boring, and drilling of large workpieces. Its structure mainly consists of a gantry frame (including a crossbeam and columns), a workbench, a milling head assembly, and a drive system, and has the characteristics of high rigidity, large stroke, and wide processing range.

[0003] The existing milling cutters on the gantry are usually located at the overhanging end of the crossbeam guide rail, and due to the space limitation of the gantry frame, the operator needs to carry out disassembly and assembly operations in a narrow area, the movement range of the tools is limited, and manual operation is prone to installation errors, such as the cutter being installed crooked, resulting in the radial runout of the cutter exceeding the tolerance. Furthermore, during subsequent machining of the workpiece, it will cause problems such as deterioration of the surface roughness of the workpiece and abnormal wear of the cutter. In addition, frequent high-intensity disassembly and assembly operations may also lead to attenuation of the spindle positioning accuracy, and long-term accumulation will greatly increase the equipment maintenance cost. At the same time, the existing gantry milling machines cannot adjust the angle of the milling cutter to adapt to different working environments and fine-tune the angle after the milling cutter is installed. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a numerically controlled bridge-type overhead beam moving gantry milling machine.

[0005] The technical solution is as follows:

[0006] A numerically controlled bridge-type overhead beam moving gantry milling machine, including a base workbench, a gantry column is arranged on the base workbench, a gantry crossbeam is arranged on the gantry column, a spindle box is arranged on the gantry crossbeam, the spindle box internally includes a spindle, a tool joint is fixedly connected to the bottom of the spindle of the spindle box, the spindle of the spindle box can drive the tool joint to rotate, and a quick-installation component is arranged on the spindle box;

[0007] The quick - installation component includes two quick - disassembly cavities opened at the bottom of the main spindle box. Card slots are opened on the groove walls of the quick - disassembly cavities. The bottom of the main spindle box is fixedly connected with an inclined plate. A limiting groove is opened on the inclined plate. A first spring is fixedly connected inside the limiting groove. One end of the first spring away from its connection with the limiting groove is fixedly connected with a limiting block. A quick - disassembly block is inserted into the quick - disassembly cavity. A sliding groove is opened on the surface of the quick - disassembly block close to the card slot. A guide rod is fixedly connected inside the sliding groove. A second spring is sleeved on the guide rod. A sliding rod is slidably connected inside the sliding groove. One end of the sliding rod located inside the sliding groove slides on the guide rod. Two ends of the second spring are respectively fixedly connected with the groove wall of the sliding groove and the sliding rod. The end of the sliding rod away from the inside of the sliding groove slides inside the card slot.

[0008] Furthermore, a slot is opened on the main spindle box. A plug rod is inserted into the slot. The card slot includes a vertical slot, an M - shaped slot, and an arc - shaped slot. The three types of card slots form a structure similar to a D - shape. The M - shaped slot is located at the top of the D - shaped structure.

[0009] Furthermore, the limiting groove communicates with the card slot. The limiting block slides inside the limiting groove. The top of the limiting block abuts against the groove wall of the arc - shaped slot. The surface of the limiting block close to the vertical slot is flush with the vertical slot.

[0010] Furthermore, an adjusting component is arranged on the quick - disassembly block. The adjusting component includes an adjusting housing fixedly connected to the bottom of the quick - disassembly block. A bearing is installed in the middle of the top of the adjusting housing. A first connecting shaft is fixedly connected to the top of the bearing. A connecting cavity is opened on the tool joint head and extends to the position of the main spindle of the main spindle box. The first connecting shaft is inserted into the connecting cavity. A second connecting shaft is fixedly connected to the bottom of the bearing. A universal joint is fixedly connected to the bottom of the second connecting shaft. A third connecting shaft is fixedly connected to the bottom of the universal joint. An adjusting groove is opened at the bottom of the adjusting housing. The bottom of the third connecting shaft slides inside the adjusting groove. A worm gear and a rotating plate are symmetrically and rotatably connected to the outer surface of the adjusting housing on the left and right. An adjusting rod is fixedly connected between the rotating plate and the bottom of the worm gear. A milling cutter is fixedly connected to the bottom of the third connecting shaft. A worm is rotatably connected to the outer surface of the adjusting housing.

[0011] Furthermore, the bearing is composed of an outer ring, an inner plate, and rolling balls. The inner plate of the bearing is rotatably connected to the inside of the outer ring through the rolling balls. The adjusting rod is U - shaped. A through - hole is opened in the middle of the adjusting rod. The bottom of the third connecting shaft passes through the through - hole. The bottom of the worm meshes with the worm gear.

[0012] Furthermore, an assembling component is arranged on the adjusting housing. The assembling component includes an assembling cavity opened on the adjusting housing. A pressing groove is opened on one side of the adjusting housing away from the assembling cavity. Two third springs are fixedly connected to the outer surface of the adjusting housing. One end of the two third springs away from their connection with the adjusting housing is fixedly connected with a pressing rod. An assembling block is fixedly connected to the end of the pressing rod located inside the pressing groove.

[0013] Further, the outer surface of the adjustment housing is provided with a perforation, the pressing rod passes through the perforation and extends into the pressing groove, and the assembling block is L-shaped.

[0014] Further, a transmission assembly is arranged on the adjustment housing. The transmission assembly includes a first transmission gear fixedly connected to the first connecting shaft. A second transmission gear is rotatably connected to the top of the adjustment housing, and the second transmission gear meshes with the first transmission gear.

[0015] As described above, the beneficial effects of a numerically controlled bridge-type overhead beam moving gantry milling machine in the present invention are as follows:

[0016] By adjusting the angle of the third connecting shaft, the transmission angle of the main shaft is adjusted, enabling the milling cutter to mill the workpiece at different angles, improving the diversity of workpiece milling by the milling cutter. Due to the guiding effect of the inclined cutting edge of the milling cutter after the angle adjustment, the milling cutter can more efficiently discharge the chips, reducing the interference of chip accumulation on the milling process;

[0017] The worm can limit the rotation of the worm gear after adjustment, enabling the adjusting rod to cooperate with the third connecting shaft to limit the adjusted transmission angle, achieving the effect of automatically fixing the angle, avoiding the problem of inability to fix after adjusting the angle of the milling cutter, and ensuring the stability after adjusting the angle of the milling cutter;

[0018] After assembling multiple adjustment housings, multiple milling cutters can be used for cutting, thereby achieving the effect of processing multiple workpieces in the same style, improving the processing efficiency. In addition, the same style of processing can also be performed on multiple parts of a single workpiece, further improving the processing efficiency of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional schematic diagram of the overall components of the present invention;

[0020] Figure 2 is a three-dimensional schematic diagram of components such as the main spindle box and multiple adjustment housings of the present invention;

[0021] Figure 3 is a three-dimensional schematic diagram of components such as the tool joint, quick-release block, and adjustment housing of the present invention;

[0022] Figure 4 is a three-dimensional sectional view schematic diagram of the main spindle box and the adjustment housing of the present invention;

[0023] Figure 5 is of the present invention Figure 4 enlarged schematic diagram of the component at A;

[0024] Figure 6 is a three-dimensional schematic diagram of components such as the card slot, sliding rod, and limiting block of the present invention;

[0025] Figure 7Schematic diagrams of components such as the quick-release block, insertion rod, and slot of the present invention;

[0026] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the component at position B in the present invention;

[0027] Figure 9 Stereoscopic schematic diagram of components such as the first connecting shaft, universal joint, and bearing of the present invention;

[0028] Figure 10 Stereoscopic schematic diagram of components such as the third connecting shaft, worm gear, rotating plate, and adjusting rod of the present invention;

[0029] Figure 11 Schematic diagrams of components such as the assembly cavity, pressing rod, and assembly block of the present invention;

[0030] Figure 12 Stereoscopic schematic diagram of components such as the adjusting housing, first transmission gear, and second transmission gear of the present invention;

[0031] Figure 13 Top view plane schematic diagram of the first transmission gear and the second transmission gear of the present invention.

[0032] Among them, the reference numerals in the present invention are:

[0033] 1. Base workbench; 2. Gantry column; 3. Gantry crossbeam; 4. Spindle box; 5. Tool joint;

[0034] Quick installation assembly: 61. Quick-release cavity; 62. Card slot; 63. Inclined plate; 64. Limit slot; 65. First spring; 66. Limit block; 67. Quick-release block; 68. Slide groove; 69. Guide rod; 610. Second spring; 611. Slide rod; 612. Slot; 613. Insertion rod;

[0035] Adjusting assembly: 71. Adjusting housing; 72. Bearing; 73. First connecting shaft; 74. Connecting cavity; 75. Second connecting shaft; 76. Universal joint; 77. Third connecting shaft; 78. Adjusting slot; 79. Worm gear; 710. Rotating plate; 711. Adjusting rod; 712. Worm; 713. Milling cutter;

[0036] Assembly assembly: 81. Assembly cavity; 82. Pressing groove; 83. Third spring; 84. Pressing rod; 85. Assembly block;

[0037] Transmission assembly: 91. First transmission gear; 92. Second transmission gear. Specific implementation manner

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] The embodiments provided by the present invention will be elaborated in detail below:

[0040] As Figures 1 to 8 shown, a numerically controlled bridge-type overhead beam moving gantry milling machine includes a base workbench 1. A gantry column 2 is arranged on the base workbench 1. A gantry beam 3 is arranged on the gantry column 2. A spindle box 4 is arranged on the gantry beam 3. The spindle box 4 is a prior art and is specifically composed of a spindle, a drive system, a cooling system, a lubrication system, and a box structure. The bottom of the spindle of the spindle box 4 is fixedly connected with a tool joint 5, and the spindle can drive the tool joint 5 to rotate under the drive of the drive system. A quick installation component is arranged on the spindle box 4;

[0041] The quick installation component includes two quick-release cavities 61 opened at the bottom of the spindle box 4 and symmetric to the tool joint 5. A clamping groove 62 is opened on the groove wall of the quick-release cavity 61. A sloping plate 63 corresponding to the position of the clamping groove 62 is fixedly connected to the bottom of the spindle box 4. A limiting groove 64 is opened on the sloping plate 63. The limiting groove 64 is communicated with the clamping groove 62. A first spring 65 is fixedly connected inside the limiting groove 64. One end of the first spring 65 away from the connection with the limiting groove 64 is fixedly connected with a limiting block 66, and the limiting block 66 slides inside the limiting groove 64;

[0042] A quick-release block 67 is inserted inside the quick-release cavity 61. A sliding groove 68 is opened on the side of the quick-release block 67 close to the clamping groove 62. A guide rod 69 is fixedly connected inside the sliding groove 68. A second spring 610 is sleeved on the guide rod 69. A sliding rod 611 is slidably connected inside the sliding groove 68. One end of the sliding rod 611 located inside the sliding groove 68 slides on the guide rod 69. Both ends of the second spring 610 are fixedly connected with the groove wall of the sliding groove 68 and the sliding rod 611 respectively. The end of the sliding rod 611 away from the inside of the sliding groove 68 slides inside the clamping groove 62;

[0043] A slot 612 is opened on the spindle box 4. The slot 612 is communicated with the inside of the quick-release cavity 61. A plug rod 613 is inserted inside the slot 612. The plug rod 613 is used to limit the upward movement of the quick-release block 67 inside the quick-release cavity 61.

[0044] It should be noted that: As Figure 6As shown, the card slot 62 is divided into a vertical slot, an M slot, and an arc slot. The three types of card slots 62 form a structure similar to a D shape. The M slot is located at the top of the D-shaped structure. The limit slot 64 extends upward to the arc slot of the card slot 62. The top of the limit block 66 abuts against the slot wall of the arc slot. The side of the limit block 66 close to the vertical slot is flush with the vertical slot, which is used to limit the direction of the sliding rod 611 when it slides in the card slot 62, so that the sliding rod 611 can only move upward in the vertical slot when it enters the inside of the card slot 62.

[0045] As Figures 2 to 5 , Figure 7 , Figures 9 to 11 shown, an adjustment assembly for adjusting the angle is provided on the quick-release block 67. The adjustment assembly includes an adjustment housing 71 fixedly connected to the bottom of the quick-release block 67. A bearing 72 is installed in the middle of the top end of the adjustment housing 71. The bearing 72 is composed of an outer ring, an inner plate, and ball bearings. The inner plate of the bearing 72 is rotatably connected to the inside of the outer ring through the ball bearings. A first connecting shaft 73 is fixedly connected to the top of the inner plate of the bearing 72. A connecting cavity 74 is provided on the tool joint 5, and the connecting cavity 74 extends to the main shaft position of the spindle box 4. The first connecting shaft 73 is inserted into the connecting cavity 74. A second connecting shaft 75 is fixedly connected to the bottom of the inner plate of the bearing 72. A universal joint 76 is fixedly connected to the bottom of the second connecting shaft 75. A third connecting shaft 77 is fixedly connected to the bottom of the universal joint 76. An adjustment groove 78 is provided at the bottom of the adjustment housing 71. The bottom of the third connecting shaft 77 slides inside the adjustment groove 78. The outer surface of the adjustment housing 71 is rotatably connected with a worm gear 79 and a rotating plate 710 symmetrically on the left and right. An adjustment rod 711 is fixedly connected between the rotating plate 710 and the bottom of the worm gear 79. The adjustment rod 711 is U-shaped. A through hole is provided in the middle of the adjustment rod 711. The bottom of the third connecting shaft 77 passes through the through hole. A milling cutter 713 is fixedly connected to the bottom of the third connecting shaft 77 through a bolt. A worm 712 is rotatably connected to the outer surface of the adjustment housing 71. The bottom of the worm 712 meshes with the worm gear 79.

[0046] It should be noted that: since the spindle box 4 is a prior art, the internal structure is relatively complex and has no direct connection with the technical features of the present invention. Therefore, in cross-sectional views such as Figure 4 , Figure 5 , only a simple description of its internal part is given, which does not mean that the inside of the spindle box 4 is a solid structure. The main connection relationship expressed is that the first connecting shaft 74 is connected to the main shaft of the spindle box 4 through the tool joint 5 at the bottom of the spindle box 4. The main shaft of the spindle box 4 can provide power for the first connecting shaft 74 and control the rotation of the first connecting shaft 74.

[0047] As Figures 9 to 11As shown in the figure, the adjustment housing 71 is provided with an assembly component for assembling a plurality of adjustment housings 71. The assembly component includes an assembly cavity 81 opened on the side surface of the adjustment housing 71. On the other side surface of the adjustment housing 71 away from the assembly cavity 81, a pressing groove 82 is opened. Two spring threes 83 symmetrical about the pressing groove 82 are fixedly connected to the outer surface of the adjustment housing 71. One ends of the two spring threes 83 away from the connection with the adjustment housing 71 are fixedly connected to a pressing rod 84. A through hole communicating with the pressing groove 82 is opened on the outer surface of the adjustment housing 71. The pressing rod 84 passes through the through hole and extends into the interior of the pressing groove 82. One end of the pressing rod 84 located inside the pressing groove 82 is fixedly connected to an assembly block 85. The assembly block 85 is L-shaped so that the assembly block 85 can be engaged inside the assembly cavity 81.

[0048] It should be noted that: there are multiple adjustment housings 71, and only the middle adjustment housing 71 is provided with a quick-release block 67. In addition, except for the middle adjustment housing 71, the connecting shaft one 73 on the bearing 72 of the other adjustment housings 71 is shorter than the connecting shaft one 73 in the middle.

[0049] As Figure 9 and Figure 13 As shown in the figure, the adjustment housing 71 is provided with a transmission component. The transmission component includes a transmission gear one 91 fixedly connected to the connecting shaft one 73. A transmission gear two 92 is rotatably connected to the top of the adjustment housing 71. The transmission gear two 92 meshes with the transmission gear one 91.

[0050] It should be noted that: the transmission gear two 92 on each adjustment housing 71 can be used to mesh with the transmission gear one 91 on any connecting shaft one 73.

[0051] Combined with the above preferred embodiments, the following is the entire working process and working principle of the above embodiments:

[0052] The initial state is:

[0053] The spring one 65 is not compressed by the limit block 66, the quick-release block 67 is not inserted into the interior of the quick-release cavity 61, the insertion rod 613 does not enter the quick-release cavity 61, the spring two 610 is not compressed by the sliding rod 611, the adjustment rod 711 is in a vertical placement state, the adjustment rod 711 makes the connecting shaft three 77 in a vertical state, the nut on the worm 712 is not tightened, and the spring three 83 is not compressed by the pressing rod 84.

[0054] The working state is:

[0055] The quick-installation component quickly assembles a single adjustment housing 71:

[0056] The operator holds the adjustment housing 71, then aligns the quick-release block 67 with the quick-release cavity 61 and inserts the quick-release block 67 into the quick-release cavity 61. During this process, the upward movement of the quick-release block 67 will drive the slide bar 611 in the chute 68 to move upward. The slide bar 611 will first contact the inclined plate 63, and under the guiding action of the inclined plate 63, the slide bar 611 will move inside the chute 68 away from the second spring 610, and the second spring 610 will be stretched by the moving slide bar 611. When the slide bar 611 slides on the inclined plate 63 to a position corresponding to the bottom of the vertical groove of the card slot 62, when the quick-release block 67 continues to move upward, the quick-release block 67 drives the slide bar 611 to move upward in the vertical groove of the card slot 62. And under the limiting action of the limiting block 66, the slide bar 611 will not move into the arc groove when moving upward in the vertical groove of the card slot 62. When the quick-release block 67 continues to move upward, it will cause the slide bar 611 to move upward inside the vertical groove of the card slot 62 to the M groove of the card slot 62. At this time, under the elastic reset action of the second spring 610, the slide bar 611 moves to the right inside the M groove of the card slot 62. Refer to Figure 6 the right side shown in the figure. The operator releases the adjustment housing 71, and then under the action of gravity, the quick-release block 67 moves downward inside the quick-release cavity 61. The quick-release block 67 also drives the slide bar 611 to move downward. The slide bar 611 moves downward in the M groove of the card slot 62, and under the elastic reset action of the second spring 610, the slide bar 611 continues to move to the right inside the M groove of the card slot 62. At this time, the M groove of the card slot 62 will form a clamping on the slide bar 611, but at this time the second spring 610 is still in a stretched state and not fully reset. At the same time, the operator then pushes the insertion rod 613 to move inside the insertion slot 612 into the quick-release cavity 61. At this time, the insertion rod 613 will move to the top of the inner cavity of the quick-release cavity 61 between the top of the quick-release block 67, thereby restricting the quick-release block 67 from moving upward inside the quick-release cavity 61 when the subsequent milling cutter 713 touches and cuts the workpiece. The slide bar 611 locks the quick-release block 67 inside the quick-release cavity 61, thereby achieving the effect of quickly installing the adjustment housing 71.

[0057] Compared with the existing method of requiring the operator to loosen the screws of the milling cutter 713 when replacing the milling cutter 713, it can improve the replacement speed of the milling cutter 713. In addition, it can also avoid the situation of unstable installation when the operator installs the milling cutter 713 on the spindle box 4, eliminate the problem of unstable installation caused by operation deviation in a narrow space, avoid the radial runout tolerance exceeding the standard caused by the milling cutter 713 being installed crooked, reduce the wear on the workpiece and the milling cutter 713 during processing. The modular design makes the replacement of the milling cutter 713 independent of the spindle box 4. The operator can pre-install the tool in an open area and then quickly lock it to the spindle box 4, shortening the tool change time and improving the operation efficiency and safety.

[0058] In addition, when the adjusting housing 71 is installed below the headstock 4 through the quick-release block 67, the first connecting shaft 73 will be inserted into the interior of the connecting cavity 74. At this time, the drive system in the headstock 4 will drive the spindle therein, and the spindle drives the tool joint 5 to rotate. The tool joint 5 drives the first connecting shaft 73 to rotate through the connecting cavity 74. The first connecting shaft 73 drives the bearing 72 to rotate, the bearing 72 drives the second connecting shaft 75 to rotate, the second connecting shaft 75 drives the third connecting shaft 77 to rotate through the universal joint 76, and the third connecting shaft 77 drives the milling cutter 713 to rotate, thereby realizing the milling of the workpiece.

[0059] It should be noted that when removing the adjusting housing 71, the staff can first pull the insertion rod 613 outwards, so that the insertion rod 613 moves away from the quick-release cavity 61 in the slot 612, so that the insertion rod 613 no longer restricts the upward movement of the quick-release block 67. Then the staff pushes the adjusting housing 71 upwards, and the adjusting housing 71 drives the quick-release block 67 to move upwards inside the quick-release cavity 61. The quick-release block 67 drives the slide rod 611 to move upwards synchronously through the chute 68. After the slide rod 611 moves upwards in the M groove of the card slot 62, the second spring 610 is reset again at this time, so that the slide rod 611 continues to move to the right in the M groove of the card slot 62. At this time, the staff can pull the adjusting housing 71 downwards, and the adjusting housing 71 drives the quick-release block 67 to move downwards inside the quick-release cavity 61. The quick-release block 67 drives the slide rod 611 to move downwards along the arc groove track of the card slot 62. When the slide rod 611 moves downwards, under the guiding action of the arc groove of the card slot 62, the slide rod 611 moves away from the second spring 610 inside the chute 68. During the movement of the slide rod 611, the second spring 610 will continue to be stretched. When the slide rod 611 moves to the bottom of the arc groove of the card slot 62, it will contact the top of the limiting block 66 and push the limiting block 66 to move downwards inside the limiting groove 64. When the limiting block 66 moves downwards, it will compress the first spring 65. At this time, the slide rod 611 can smoothly pass through the arc groove of the card slot 62. When the slide rod 611 moves out of the arc groove of the card slot 62, the slide rod 611 no longer presses the limiting block 66. Under the elastic reset action of the first spring 65, the limiting block 66 moves upwards. Since the slide rod 611 has slid out of the card slot 62, the quick-release block 67 at this time also moves out of the quick-release cavity 61, thereby realizing the effect of quick removal. If the milling cutter 713 needs to be replaced, the replacement efficiency can also be improved.

[0060] The adjusting assembly adjusts the milling angle of the milling cutter 713:

[0061] When milling the workpiece at different angles, the operator can rotate the worm 712 corresponding to the angle of the milling cutter 713 to be adjusted. When the worm 712 rotates, it will drive the worm gear 79 to rotate on the adjustment housing 71. During the rotation of the worm gear 79, it will drive the rotating plate 710 to rotate synchronously through the adjustment rod 711. When the adjustment rod 711 rotates at this time, it will drive the third connecting shaft 77 to rotate synchronously around the universal joint 76 through the through hole. The third connecting shaft 77 will slide inside the adjustment groove 78. When the third connecting shaft 77 rotates, it will drive the milling cutter 713 to tilt. By adjusting the angle of the milling cutter 713, milling the workpiece at different angles is achieved, improving the diversity of the milling cutter 713 for milling the workpiece. Due to the guiding action of the inclined cutting edge of the milling cutter 713 after the angle adjustment, the milling cutter 713 can discharge the chips more efficiently, reducing the interference of chip accumulation on the milling process.

[0062] It should be noted that due to the self-locking property of the worm gear 79 and the worm 712, the worm 712 can drive the worm gear 79 to rotate, while the worm gear 79 cannot drive the worm 712 to rotate, enabling the worm 712 to restrict the worm gear 79. In addition, by rotating the nut on the worm 712 to make the nut closely fit the outer wall of the adjustment housing 71, the worm 712 can be prevented from rotating arbitrarily, preventing the worm 712 from self-rotating when the milling cutter 713 processes the workpiece, that is Figure 9 as shown by the nut on the worm 712. Furthermore, the worm gear 79, through the adjustment rod 711 and in cooperation with the third connecting shaft 77, restricts the angle of the milling cutter 713 after adjustment, achieving the effect of automatically fixing the angle of the milling cutter 713, avoiding the problem of being unable to fix the angle after adjusting the angle of the milling cutter 713, and ensuring the stability after adjusting the angle of the milling cutter 713.

[0063] The assembly components cooperate with the transmission components for the installation of multiple milling cutters 713:

[0064] When processing multiple workpieces or synchronously processing multiple parts of a single workpiece, at this time, the operator can hold the adjustment housing 71 except the middle one, press the pressing rod 84, so that the pressing rod 84 moves toward the side close to the pressing groove 82. During the movement of the pressing rod 84, the third spring 83 will be compressed. In addition, the pressing rod 84 will drive the assembling block 85 to move toward the middle inside the pressing groove 82. At this time, the operator can align the held adjustment housing 71 with the side of the adjustment housing 71 already installed below the spindle box 4, and then insert the assembling block 85 into the assembling cavity 81. At this time, the pressing rod 84 can be released. Under the elastic reset action of the third spring 83, the pressing rod 84 drives the assembling block 85 to move toward the side close to the third spring 83. After the movement of the assembling block 85 at this time, it will be clamped with the assembling cavity 81, thus realizing the assembly of the two adjustment housings 71. By assembling multiple adjustment housings 71, multiple milling cutters 713 can be used for cutting, thus realizing the effect of processing multiple workpieces in the same style, improving the processing efficiency. In addition, it can also process multiple parts of a single workpiece in the same style, further improving the processing efficiency of the workpiece.

[0065] Moreover, after multiple adjustment housings 71 are assembled, the first transmission gear 91 on the assembled adjustment housing 71 will mesh with the second transmission gear 92 on the adjustment housing 71 located below the spindle box 4, or the second transmission gear 92 on the assembled adjustment housing 71 will mesh with the first transmission gear 91 on the adjustment housing 71 located below the spindle box 4. After the first connecting shaft 73 on the adjustment housing 71 located below the spindle box 4 is driven to rotate by the spindle box 4, the first connecting shaft 73 drives the first transmission gear 91 to rotate, the first transmission gear 91 drives the second transmission gear 92 to rotate, and the second transmission gear 92 will drive the first transmission gear 91 on the assembled adjustment housing 71 to rotate. At this time, the first transmission gear 91 on the adjustment housing 71 located below the spindle box 4 rotates in the same direction as the first transmission gears 91 on the multiple assembled adjustment housings 71, that is Figure 13 the shown rotation direction. Thus, the first transmission gear 91 on the assembled adjustment housing 71 will drive the first connecting shaft 73 to rotate, the first connecting shaft 73 will drive the bearing 72 to rotate, the bearing 72 rotates through the second connecting shaft 75, the second connecting shaft 75 drives the third connecting shaft 77 to rotate through the universal joint 76, and the third connecting shaft 77 will drive the milling cutter 713 to rotate, thus realizing the effect that multiple milling cutters 713 are simultaneously driven to rotate for processing.

[0066] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A CNC bridge type elevated beam movable gantry milling machine, comprising a base worktable (1), a gantry column (2) is arranged on the base worktable (1), a gantry beam (3) is arranged on the gantry column (2), a spindle box (4) is arranged on the gantry beam (3), the spindle box (4) includes a spindle inside, the bottom of the spindle of the spindle box (4) is fixedly connected with a tool joint (5), the spindle of the spindle box (4) can drive the tool joint (5) to rotate, and is characterized in that: A quick-install assembly is arranged on the spindle box (4); The quick-release assembly comprises two quick-release cavities (61) provided at the bottom of the spindle box (4); a slot (62) is provided on the slot wall of the quick-release cavity (61); an inclined plate (63) is fixedly connected to the bottom of the spindle box (4); a limiting slot (64) is provided on the inclined plate (63); a spring (65) is fixedly connected inside the limiting slot (64); an end of the spring (65) away from the limiting slot (64) is fixedly connected to a limiting block (66); a quick-release block (67) is inserted inside the quick-release cavity (61); and the quick-release block (67) is close to the limiting slot (64). A slide groove (68) is provided on one side of the card slot (62), a guide rod (69) is fixedly connected inside the slide groove (68), a spring (610) is sleeved on the guide rod (69), a slide rod (611) is slidably connected inside the slide groove (68), one end of the slide rod (611) located in the slide groove (68) slides on the guide rod (69), two ends of the spring (610) are respectively fixedly connected to the wall of the slide groove (68) and the slide rod (611), and one end of the slide rod (611) away from the inside of the slide groove (68) slides inside the card slot (62).

2. The CNC bridge type elevated beam mobile gantry milling machine according to claim 1, characterized in that: A slot (612) is provided on the spindle box (4), an insert rod (613) is inserted into the slot (612), the slot (62) comprises a vertical slot, an M slot and an arc slot, the three types of slots (62) form a structure similar to a D-shape, and the M slot is located at the top of the D-shape structure.

3. The CNC bridge type elevated beam mobile gantry milling machine according to claim 2, characterized in that: The limiting groove (64) is connected to the clamping groove (62), the limiting block (66) slides inside the limiting groove (64), the top of the limiting block (66) abuts against the groove wall of the arc groove, and the side of the limiting block (66) close to the vertical groove is flush with the vertical groove.

4. The CNC bridge type elevated beam mobile gantry milling machine according to claim 1, characterized in that: The quick release block (67) is provided with an adjustment assembly, which includes an adjustment housing (71) fixedly connected to the bottom of the quick release block (67), a bearing (72) is installed at the middle of the top end of the adjustment housing (71), a connecting shaft (73) is fixedly connected to the top of the bearing (72), a connecting cavity (74) is opened on the tool joint (5), the connecting cavity (74) extends to the spindle position of the spindle box (4), the connecting shaft (73) is inserted into the connecting cavity (74), the bottom of the bearing (72) is fixedly connected to the connecting shaft (75), and the bottom of the connecting shaft (75) is fixedly connected to the universal joint. The bottom of the universal joint (76) is fixedly connected with a connecting shaft (77), the bottom of the adjusting housing (71) is provided with an adjusting groove (78), the bottom of the connecting shaft (77) slides inside the adjusting groove (78), the outer surface of the adjusting housing (71) is symmetrically rotatably connected with a worm gear (79) and a rotating plate (710), an adjusting rod (711) is fixedly connected between the rotating plate (710) and the bottom of the worm gear (79), the bottom of the connecting shaft (77) is fixedly connected with a milling cutter (713), and the outer surface of the adjusting housing (71) is rotatably connected with a worm gear (712).

5. The CNC bridge type elevated beam moving gantry milling machine according to claim 4, characterized in that: The bearing (72) is composed of an outer ring, an inner plate and a ball bearing. The inner plate of the bearing (72) is rotatably connected to the inner part of the outer ring through the ball bearing. The adjusting rod (711) is U-shaped. A through hole is opened in the middle of the adjusting rod (711). The bottom of the connecting shaft (77) passes through the through hole. The bottom of the worm (712) is meshed with the worm wheel (79).

6. The CNC bridge type elevated beam moving gantry milling machine according to claim 4, characterized in that: An assembling component is provided on the adjusting shell (71), and the assembling component includes an assembling cavity (81) opened on the adjusting shell (71); a pressing groove (82) is opened on a side of the adjusting shell (71) away from the assembling cavity (81); two springs (83) are fixedly connected to the outer surface of the adjusting shell (71); one end of the two springs (83) away from the end connected to the adjusting shell (71) is fixedly connected to a pressing rod (84); and one end of the pressing rod (84) located inside the pressing groove (82) is fixedly connected to an assembling block (85).

7. The CNC bridge type elevated beam moving gantry milling machine according to claim 6, characterized in that: The outer surface of the adjustment housing (71) is provided with a through hole, the pressing rod (84) passes through the through hole and extends to the inside of the pressing groove (82), and the assembling block (85) is L-shaped.

8. The CNC bridge type elevated beam moving gantry milling machine according to claim 4, characterized in that: A transmission assembly is provided on the adjustment housing (71), and the transmission assembly includes a transmission gear 1 (91) fixedly connected to the connection shaft 1 (73). The top of the adjustment housing (71) is rotatably connected to a transmission gear 2 (92), and the transmission gear 2 (92) and the transmission gear 1 (91) are meshed with each other.

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