Multi-facet drill combined machine tool

Abstract

The invention discloses a multi-facet drill combined machine tool, and belongs to the technical field of workpiece drilling, the multi-facet drill combined machine tool comprises a workbench, the top of the workbench is fixedly connected with a limiting support frame, and the top of the limiting support frame is provided with hydraulic equipment; the output end of the hydraulic equipment is fixedly connected with a lifting connecting frame, the bottom of the lifting connecting frame is fixedly connected with a driving shell mechanism, and a power transmission mechanism is arranged in the center of the top of the driving shell mechanism; and a plurality of external expansion gear mechanisms are mounted in the driving shell mechanism. By designing the adjustable drilling mechanisms and the adjusting vortex-shaped disc, the positions of the multiple adjustable drilling mechanisms can be adjusted by adjusting the vortex-shaped disc, power of the power transmission mechanism is transmitted in cooperation with the corresponding external expansion gear mechanism, and the punching function that the machine tool can customize cylindrical workpieces of various common specifications is achieved; and the singleness of the equipment is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of workpiece drilling, and particularly relates to a gang drill combination machine tool. Background Art

[0002] A gang drill combination machine tool is an efficient hole processing equipment, usually composed of a multiple spindle head and a drill press, etc. It mainly consists of parts such as a multiple spindle head, a power component, a transmission component, and a control system. Its working principle is to distribute a power source to multiple drill spindles through the multiple spindle head, enabling multiple drill bits to simultaneously perform processing operations such as drilling or tapping on the workpiece. The gear transmission system in the multiple spindle head will evenly transmit the power to each drill spindle according to the designed transmission ratio, ensuring that each drill spindle can work at an appropriate rotational speed and torque. Under the command of the control system, the power head drives the drill bit to process according to the set feed speed and stroke, realizing the simultaneous processing of multiple holes on the workpiece.

[0003] Existing gang drill combination machine tools are usually designed for specific types and specifications of workpieces and specific drilling processes. Once there are significant changes in the shape, size, drilling position, or quantity of the workpiece, etc., it may be necessary to readjust the machine tool, replace the cutting tools and fixtures, and even need to redesign and manufacture some components. The adjustment cost is relatively high, the cycle is long, and it is difficult to quickly adapt to diverse processing requirements. For example, when performing equally spaced drilling on cylindrical workpieces, when drilling several common cylindrical workpieces with different diameters, it is often necessary to design multiple sets of machine tools to achieve this. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a gang drill combination machine tool.

[0005] The technical solution adopted to solve the above technical problem is: to provide a gang drill combination machine tool, including a workbench, the top of the workbench is fixedly connected with a limit support frame, and a hydraulic device is installed on the top of the limit support frame; The output end of the hydraulic device is fixedly connected with a lifting connection frame, the bottom of the lifting connection frame is fixedly connected with a drive housing mechanism, and a power transmission mechanism is arranged at the center of the top of the drive housing mechanism; A plurality of outer expansion gear mechanisms are installed inside the drive housing mechanism, the inner surface of the bottom of the drive housing mechanism is rotatably connected with a positioning and locking mechanism, a plurality of adjustable drilling mechanisms are slidably connected to the bottom of the drive housing mechanism, and an adjusting spiral disk is rotatably connected to the center of the bottom of the drive housing mechanism.

[0006] Further, the driving housing mechanism includes a mechanism upper cover fixedly connected to the bottom of the lifting connecting frame. A mechanism bottom shell is fixedly connected to the bottom of the mechanism upper cover. A plurality of limit fixing sleeves are fixedly connected to the outer wall of the mechanism bottom shell. A motor fixing seat is fixedly connected to one side of the top of the mechanism upper cover. A driving motor is installed on the motor fixing seat. The output end of the driving motor is fixedly connected to a first pulley. A plurality of transmission belts are arranged between the first pulley and the power transmission mechanism. A plurality of electric rods are fixedly connected to the top of the mechanism upper cover. A plain bearing assembly is installed between the mechanism upper cover and the first pulley.

[0007] Through the above technical solution, after adjusting the position of the adjustable drilling mechanism according to the diameter of the workpiece, the designed plurality of electric rods can drive a plurality of outer expansion gear mechanisms. Select the corresponding outer expansion gear mechanism to descend to complete the power transmission. When drilling, the driving motor drives the first pulley to rotate, and then drives the power transmission mechanism to complete the power transmission through a plurality of transmission belts. During the rotation of the first pulley, the plain bearing assembly realizes the planar rotation support. When the overall driving housing mechanism is driven by a hydraulic device to lift and lower, the limit sliding is realized through a plurality of limit fixing sleeves to ensure the stability of drilling.

[0008] Further, each of the plurality of limit fixing sleeves is sleeved on the outer wall of a plurality of columns in the limit support frame. The number of the plurality of electric rods is three groups, and they correspond to the plurality of outer expansion gear mechanisms one by one. The number of each group of electric rods is two.

[0009] Through the above technical solution, it is ensured that the limit guiding is realized through the limit fixing sleeves during the lifting and lowering process of the overall driving housing mechanism. The three groups of electric rods respectively correspond to three outer expansion gear mechanisms. Coupled with the transmission structure of the power transmission mechanism itself, the processing of workpieces with four diameters can be realized.

[0010] Further, the power transmission mechanism includes a first plain bearing base fixedly connected to the center of the top of the driving housing mechanism. A bearing top cover rod is rotatably connected to the top of the first plain bearing base. A second pulley and a transmission gear are respectively fixedly connected to the top and bottom of the bearing top cover rod.

[0011] Through the above technical solution, the power reception of the transmission belt is realized through the second pulley. The height of the transmission gear is greater than that of the outer expansion gear mechanism. Thus, the outer expansion gear mechanism can be meshed with the transmission gear and can slide up and down. The rotation of the second pulley and the transmission gear is supported by the first plain bearing base and the bearing top cover rod.

[0012] Further, the outer expansion gear mechanism includes an inner and outer tooth ring. A bearing ring is rotatably connected to the inner wall of the inner and outer tooth ring. Connecting fixing ears are fixedly connected to both sides of the top of the inner wall of the bearing ring.

[0013] With the above technical solution, there are three externally expanded gear mechanisms, and three internal and external toothed rings with different diameters mesh with each other. When the transmission gear rotates, it will drive the three internal and external toothed rings to rotate together. The three internal and external toothed rings rotate under the support of the corresponding bearing rings. The corresponding electric rods are connected through the connecting fixing ears, so that the corresponding internal and external toothed rings can be lifted to realize the adjustment of power transmission.

[0014] Furthermore, the inner and outer walls of the multiple internal and external toothed rings are both tooth-shaped structures, and the diameters of the multiple internal and external toothed rings increase sequentially from inside to outside. The multiple internal and external toothed rings mesh with each other.

[0015] With the above technical solution, the tooth-shaped structures on the inner and outer walls can mesh with each other, thereby realizing the transmission of power, and can realize the adjustment of the diameter of the driving gear. The diameter of the transmission gear is enlarged through the internal and external toothed rings, so that power transmission can still be realized with the adjustment of the adjustable drilling mechanism.

[0016] Furthermore, the positioning and locking mechanism includes two fixing rings. A plurality of first multi-grooved clamping plates and a plurality of second multi-grooved clamping plates are respectively fixedly connected to the inner walls of the two fixing rings. A plurality of perforated fixing ears are fixedly connected to the outer walls of the two fixing rings.

[0017] With the above technical solution, when adjusting the position of the adjustable drilling mechanism, remove the multiple bolts and nuts between the two fixing rings, rotate the two fixing rings to both sides by a certain angle, so that the plurality of first multi-grooved clamping plates and the corresponding plurality of second multi-grooved clamping plates move away from each other and open, realizing the release of the overall limit fixation of the adjustable drilling mechanism. Then rotate the adjusting spiral disk to drive the adjustable drilling mechanism to expand outwards. After moving to the designated position, rotate the two fixing rings so that the plurality of perforated fixing ears on the two fixing rings coincide, and then lock and fix them with bolts, thereby realizing the position adjustment of the plurality of adjustable drilling mechanisms, so that they can be in a straight line with the hole positions of the workpiece.

[0018] Furthermore, the two fixing rings are fixed through the corresponding perforated fixing ears and a plurality of bolts and nuts. The plurality of first multi-grooved clamping plates and the plurality of second multi-grooved clamping plates correspond one by one and are symmetrical structures with each other. Arc-shaped grooves are provided on the sides of the plurality of first multi-grooved clamping plates and the plurality of second multi-grooved clamping plates close to each other.

[0019] Through the above technical solution, the fixation by multiple perforated fixing ears and multiple bolts and nuts can ensure the fixation and locking of the adjustable drilling mechanism. The clamping and fixation of the adjustable drilling mechanism can be completed through the grooves on the first multi-grooved clamping plate and the second multi-grooved clamping plate, and the notch is designed according to the width of the inner and outer toothed rings to ensure that when the adjustable drilling mechanism moves to different gears, the transmission gears therein can be engaged with the inner and outer toothed rings to complete power transmission.

[0020] Further, the adjustable drilling mechanism includes a spiral tooth transmission bar. One end of the spiral tooth transmission bar is fixedly connected with a second plain bearing base. A plurality of limit clamping columns are fixedly connected to the top of the second plain bearing base. A plain bearing top cover is rotatably connected to the inside of the second plain bearing base. A transmission cylinder is fixedly connected to the center of the plain bearing top cover. A transmission gear is fixedly connected to the top of the transmission cylinder. A limit bearing is sleeved on the bottom of the outer wall of the transmission cylinder. T-shaped sliding rods are fixedly connected to both sides of the outer wall of the limit bearing. A detachable drill rod is installed at the bottom of the transmission cylinder. Two bolt assemblies are installed between the transmission cylinder and the detachable drill rod.

[0021] Through the above technical solution, by rotating and adjusting the engagement between the spiral disk and the spiral tooth transmission bar, the rotation of the spiral disk can drive a plurality of spiral tooth transmission bars to expand outwards, realizing the simultaneous outward movement of a plurality of adjustable drilling mechanisms. Through the drive of the drive motor, and then through the first pulley, transmission belt, second pulley, transmission gear and inner and outer toothed rings to complete power transmission, the transmission gear, transmission cylinder and detachable drill rod can be driven to rotate. The rotation support is completed through the second plain bearing base and the plain bearing top cover, and then the rotation is further limited by the limit bearing to make the rotation more stable. At the same time, the T-shaped sliding rods will also slide accordingly during the movement of the overall adjustable drilling mechanism. When fixing through the positioning and locking mechanism, the clamping of a plurality of limit clamping columns is realized through the grooves on the first multi-grooved clamping plate and the second multi-grooved clamping plate to achieve fixed locking.

[0022] The beneficial effects of the present invention are as follows: (1) By designing an adjustable drilling mechanism and an adjustable spiral disk, the present invention realizes that the positions of multiple adjustable drilling mechanisms can be adjusted by adjusting the spiral disk. Cooperating with the corresponding external expansion gear mechanism, the power of the power transmission mechanism is transmitted, so that while ensuring power transmission, the adjustable drilling mechanism can move to multiple gear positions, and then the machine tool can realize the drilling function for various commonly used cylindrical workpieces, avoiding the single nature of the equipment and improving the application range of the device; (2) By designing a positioning and locking mechanism, the two fixing rings rotate a certain angle to both sides respectively, so that multiple first multi-groove clamping plates and multiple corresponding second multi-groove clamping plates move away from each other and open. After the adjustable drilling mechanism moves outward to the specified position, rotate the two fixing rings to make the multiple perforated fixing ears on the two fixing rings coincide, and then lock and fix them with bolts, so as to realize the position adjustment of the multiple adjustable drilling mechanisms, so that they can be in a straight line with the hole positions of the workpiece, ensuring the locking and fixing of the adjustable drilling mechanism and improving the stability of drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a sectional three-dimensional structural schematic diagram of the present invention; Figure 3 is a structural schematic diagram of the driving housing mechanism of the present invention; Figure 4 is Figure 3 the sectional structural schematic diagram of; Figure 5 is an internal structural schematic diagram of the driving housing mechanism of the present invention; Figure 6 is a partial structural schematic diagram of the driving housing mechanism of the present invention; Figure 7 is a structural schematic diagram of the external expansion gear mechanism of the present invention; Figure 8 is a structural schematic diagram of the driving housing mechanism and the positioning and locking mechanism of the present invention; Figure 9 is a structural schematic diagram of the positioning and locking mechanism of the present invention; Figure 10 is a structural schematic diagram of the first multi-groove clamping plate and the second multi-groove clamping plate of the present invention; Figure 11 is a structural schematic diagram of the adjustable drilling mechanism and the adjustable spiral disk of the present invention; Figure 12 is a three-dimensional structural schematic diagram of the adjustable drilling mechanism of the present invention; Figure 13 is a sectional structural schematic diagram of the adjustable drilling mechanism of the present invention; Figure 14 Schematic explosion structure diagram of the adjustable drilling mechanism of the present invention; Figure 15 Schematic structure diagram of the positioning and locking mechanism and the limit clamping post of the present invention; Figure 16 Schematic three-dimensional sectional structure diagram of the adjusting spiral disk of the present invention.

[0024] Reference numerals: 1, workbench; 2, limit support frame; 3, hydraulic equipment; 4, lifting connection frame; 5, drive housing mechanism; 501, mechanism upper cover; 502, mechanism bottom shell; 503, limit fixing sleeve; 504, motor fixing seat; 505, drive motor; 506, first pulley; 507, transmission belt; 508, electric rod; 509, plain bearing assembly; 6, power transmission mechanism; 601, first plain bearing base; 602, bearing top cover rod; 603, second pulley; 604, transmission gear; 7, outer expansion gear mechanism; 701, inner and outer toothed rings; 702, bearing ring; 703, connecting fixed ear; 8, positioning and locking mechanism; 801, fixed ring; 802, first multi-groove clamping plate; 803, second multi-groove clamping plate; 804, perforated fixed ear; 9, adjustable drilling mechanism; 901, spiral tooth transmission bar; 902, second plain bearing base; 903, limit clamping post; 904, plain bearing top cover; 905, transmission cylinder; 906, transmission gear; 907, limit bearing; 908, T-shaped sliding rod; 909, detachable drill rod; 910, bolt assembly; 10, adjusting spiral disk. Detailed implementation manners

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] As shown in Figure 1 and Figure 2 shown, a group drilling combined machine tool of this embodiment includes a workbench 1, a limit support frame 2 is fixedly connected to the top of the workbench 1, and a hydraulic equipment 3 is installed on the top of the limit support frame 2; As shown in Figures 1-6As shown in the figure, the output end of the hydraulic device 3 is fixedly connected with a lifting connecting frame 4. The bottom of the lifting connecting frame 4 is fixedly connected with a driving housing mechanism 5. The driving housing mechanism 5 includes a mechanism upper cover 501 fixedly connected to the bottom of the lifting connecting frame 4. The bottom of the mechanism upper cover 501 is fixedly connected with a mechanism bottom shell 502. The outer wall of the mechanism bottom shell 502 is fixedly connected with a plurality of limit fixing sleeves 503. One side of the top of the mechanism upper cover 501 is fixedly connected with a motor fixing seat 504. A driving motor 505 is installed on the motor fixing seat 504. The output end of the driving motor 505 is fixedly connected with a first belt pulley 506. A plurality of transmission belts 507 are arranged between the first belt pulley 506 and the power transmission mechanism 6. The top of the mechanism upper cover 501 is fixedly connected with multiple groups of electric rods 508. A plain bearing assembly 509 is installed between the mechanism upper cover 501 and the first belt pulley 506. After adjusting the position of the adjustable drilling mechanism 9 according to the diameter of the workpiece, the multiple groups of electric rods 508 designed can drive the multiple outer expansion gear mechanisms 7. Select the corresponding outer expansion gear mechanism 7 to descend to complete the power transmission. When drilling, the driving motor 505 drives the first belt pulley 506 to rotate, and then drives the power transmission mechanism 6 to complete the power transmission through a plurality of transmission belts 507. During the rotation of the first belt pulley 506, the plain bearing assembly 509 realizes the planar rotation support. When the overall driving housing mechanism 5 is driven by the hydraulic device 3 to lift, the limit sliding is realized through a plurality of limit fixing sleeves 503 to ensure the stability of drilling. The plurality of limit fixing sleeves 503 are respectively sleeved on the outer walls of the plurality of columns in the limit support frame 2. The number of the multiple groups of electric rods 508 is three groups, and they correspond to the multiple outer expansion gear mechanisms 7 one by one. The number of each group of electric rods 508 is two, which ensures that the limit guiding is realized through the limit fixing sleeves 503 during the lifting process of the overall driving housing mechanism 5. The three groups of electric rods 508 correspond to the three outer expansion gear mechanisms 7 respectively. Coupled with the transmission structure of the power transmission mechanism 6 itself, the processing of workpieces with four diameters can be realized.

[0027] As Figures 1-6 shown in the figure, a power transmission mechanism 6 is arranged at the center of the top of the driving housing mechanism 5. The power transmission mechanism 6 includes a first plain bearing base 601 fixedly connected to the center of the top of the driving housing mechanism 5. The top of the first plain bearing base 601 is rotatably connected with a bearing top cover rod 602. The top and bottom of the bearing top cover rod 602 are respectively fixedly connected with a second belt pulley 603 and a transmission gear 604. The power of the transmission belt 507 is received through the second belt pulley 603. The height of the transmission gear 604 is greater than that of the outer expansion gear mechanism 7, so that the outer expansion gear mechanism 7 can be meshed on the transmission gear 604 and can slide up and down. The rotation of the second belt pulley 603 and the transmission gear 604 is supported by the first plain bearing base 601 and the bearing top cover rod 602 to provide rotation support.

[0028] AsFigures 1-7 As shown, a plurality of expanding gear mechanisms 7 are installed inside the driving housing mechanism 5. The expanding gear mechanism 7 includes an inner and outer tooth ring 701. The inner wall of the inner and outer tooth ring 701 is rotatably connected with a bearing ring 702. Both sides of the top of the inner wall of the bearing ring 702 are fixedly connected with connecting fixing ears 703. There are three expanding gear mechanisms 7, and three inner and outer tooth rings 701 with different diameters mesh with each other. When the transmission gear 604 rotates, it will drive the three inner and outer tooth rings 701 to rotate together. The three inner and outer tooth rings 701 rotate under the support of the corresponding bearing rings 702. The corresponding electric rods 508 are connected through the connecting fixing ears 703, so as to realize the lifting of the corresponding inner and outer tooth rings 701 to adjust the power transmission. The inner and outer walls of the plurality of inner and outer tooth rings 701 are both tooth-shaped structures, and the diameters of the plurality of inner and outer tooth rings 701 increase in sequence from inside to outside. The plurality of inner and outer tooth rings 701 mesh with each other. The tooth-shaped structures on the inner and outer walls can mesh with each other, so as to realize the power transmission and the diameter adjustment of the driving gear. The diameter of the transmission gear 604 is enlarged through the inner and outer tooth rings 701, so that the power transmission can still be realized along with the adjustment of the adjustable drilling mechanism 9.

[0029] As Figures 1-10As shown, a positioning and locking mechanism 8 is rotatably connected to the inner surface of the bottom of the driving housing mechanism 5. The positioning and locking mechanism 8 includes two fixing rings 801. A plurality of first multi-grooved clamping plates 802 and a plurality of second multi-grooved clamping plates 803 are respectively fixedly connected to the inner walls of the two fixing rings 801. A plurality of perforated fixing ears 804 are fixedly connected to the outer walls of the two fixing rings 801. When adjusting the position of the adjustable drilling mechanism 9, remove the plurality of bolts and nuts between the two fixing rings 801, rotate the two fixing rings 801 to both sides by a certain angle respectively, so as to realize the separation and opening of the plurality of first multi-grooved clamping plates 802 and the corresponding plurality of second multi-grooved clamping plates 803, and realize the release of the limit fixation of the whole adjustable drilling mechanism 9. Then rotate the adjusting spiral disk 10 to drive the adjustable drilling mechanism 9 to expand outwards. After moving to the designated position, rotate the two fixing rings 801 to make the plurality of perforated fixing ears 804 on the two fixing rings 801 coincide, and then lock and fix them with bolts, so as to realize the position adjustment of the plurality of adjustable drilling mechanisms 9, so that they can be in a straight line with the hole positions of the workpiece. The two fixing rings 801 are fixed through the corresponding perforated fixing ears 804 and a plurality of bolts and nuts. The plurality of first multi-grooved clamping plates 802 and the plurality of second multi-grooved clamping plates 803 are in one-to-one correspondence and are symmetrical structures with each other. Arc-shaped grooves are provided on the sides where the plurality of first multi-grooved clamping plates 802 and the plurality of second multi-grooved clamping plates 803 are close to each other. Fixing through the plurality of perforated fixing ears 804 and the plurality of bolts and nuts can ensure the fixing and locking of the adjustable drilling mechanism 9. The clamping and fixing of the adjustable drilling mechanism 9 can be completed through the grooves on the first multi-grooved clamping plates 802 and the second multi-grooved clamping plates 803, and the notch is designed according to the width of the inner and outer toothed rings 701, ensuring that when the adjustable drilling mechanism 9 moves to different gears, the transmission gears 906 therein can be engaged with the inner and outer toothed rings 701 to complete power transmission.

[0030] As Figures 1-16As shown in the figure, a plurality of adjustable drilling mechanisms 9 are slidably connected to the bottom of the driving housing mechanism 5. The adjustable drilling mechanism 9 includes a spiral gear transmission bar 901. One end of the spiral gear transmission bar 901 is fixedly connected to a second plain bearing base 902. A plurality of limit clamping columns 903 are fixedly connected to the top of the second plain bearing base 902. A plain bearing top cover 904 is rotatably connected inside the second plain bearing base 902. A transmission cylinder 905 is fixedly connected to the center of the plain bearing top cover 904. A transmission gear 906 is fixedly connected to the top of the transmission cylinder 905. A limit bearing 907 is sleeved on the bottom of the outer wall of the transmission cylinder 905. T-shaped sliding rods 908 are fixedly connected to both sides of the outer wall of the limit bearing 907. A detachable drill rod 909 is installed at the bottom of the transmission cylinder 905. Two bolt assemblies 910 are installed between the transmission cylinder 905 and the detachable drill rod 909. By rotating and adjusting the meshing of the spiral disk 10 and the spiral gear transmission bar 901, the rotation of the spiral disk 10 can drive a plurality of spiral gear transmission bars 901 to expand outwards, realizing the simultaneous outward movement of a plurality of adjustable drilling mechanisms 9. Through the drive of the drive motor 505, and then through the first pulley 506, the transmission belt 507, the second pulley 603, the transmission gear 604 and the internal and external tooth ring 701 to complete the power transmission, the transmission gear 906, the transmission cylinder 905 and the detachable drill rod 909 can be driven to rotate. The rotation support is completed by the second plain bearing base 902 and the plain bearing top cover 904, and then the rotation is further limited by the limit bearing 907 to make the rotation more stable. At the same time, the T-shaped sliding rods 908 will also slide during the overall movement of the adjustable drilling mechanism 9. When fixing through the positioning and locking mechanism 8, the clamping of a plurality of limit clamping columns 903 is realized through the grooves on the first multi-groove clamping plate 802 and the second multi-groove clamping plate 803 to achieve fixed locking. The adjustment spiral disk 10 is rotatably connected to the center of the bottom of the driving housing mechanism 5.

[0031] The working principle of this embodiment is as follows. When in use, the workpiece is placed on the workbench 1 for fixation. When in use, the diameter size of the workpiece is determined. When the detachable drill rods 909 in the existing plurality of adjustable drilling mechanisms 9 cannot reach the drilling position, remove the plurality of bolts and nuts between the two fixing rings 801, and rotate the two fixing rings 801 to both sides by a certain angle respectively, so as to realize the mutual separation and opening of a plurality of first multi-groove clamping plates 802 and a plurality of corresponding second multi-groove clamping plates 803, realizing the release of the overall limit fixation of the adjustable drilling mechanism 9. Then rotate the adjustment spiral disk 10 to drive a plurality of spiral gear transmission bars 901 to expand outwards, realizing the simultaneous outward movement of a plurality of adjustable drilling mechanisms 9. After moving to the designated position, rotate the two fixing rings 801 to make the plurality of perforated fixing ears 804 on the two fixing rings 801 coincide, and then lock and fix them with bolts, so as to realize the position adjustment of a plurality of adjustable drilling mechanisms 9, so that they can be in a straight line with the hole positions of the workpiece; Then, according to the moving distance, a plurality of electric rods 508 are used to sequentially push the corresponding outward-expanding gear mechanism 7 from the inside to the outside. If it moves one gear position outward, only the outward-expanding gear mechanism 7 meshing with the outside of the downward power transmission mechanism 6 is needed. The power transmission is realized through the inner and outer tooth rings 701 in the outward-expanding gear mechanism 7. After the inner and outer tooth rings 701 descend, they mesh with the transmission gears 906 in a plurality of adjustable drilling mechanisms 9 (both ends of the teeth of the inner and outer tooth rings 701 and the transmission gears 906 are triangular structures, which is convenient for the teeth of the two to be inserted and meshed). Then, the driving motor 505 drives the first pulley 506 to rotate, and then drives the second pulley 603 to rotate through a plurality of transmission belts 507, so as to drive the transmission gear 604 to complete power transmission. The outer meshing inner and outer tooth rings 701 are driven by the transmission gear 604, and then the inner and outer tooth rings 701 drive a plurality of transmission gears 906 to rotate, so as to realize the synchronous rotation of the transmission gears 906, the transmission cylinders 905 and the T-shaped sliding rods 908. Then, the hydraulic device 3 pushes the driving housing mechanism 5 to descend through the lifting connecting frame 4, so as to drive the detachable drill rods 909 rotating in a plurality of adjustable drilling mechanisms 9 to descend and contact the surface of the workpiece, realizing drilling.

[0032] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A group drilling machine tool, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to a limit support frame (2), and a hydraulic device (3) is installed on the top of the limit support frame (2); The output end of the hydraulic device (3) is fixedly connected to a lifting connection frame (4), the bottom of the lifting connection frame (4) is fixedly connected to a driving housing mechanism (5), and a power transmission mechanism (6) is arranged at the top center of the driving housing mechanism (5); A plurality of outwardly expanding gear mechanisms (7) are installed inside the drive housing mechanism (5); a positioning locking mechanism (8) is rotatably connected to the inner surface of the bottom of the drive housing mechanism (5); a plurality of adjustable drilling mechanisms (9) are slidably connected to the bottom of the drive housing mechanism (5); and an adjustable vortex disk (10) is rotatably connected to the center of the bottom of the drive housing mechanism (5).

2. The group drilling machine tool according to claim 1, characterized in that: The driving housing mechanism (5) comprises a mechanism upper cover (501) fixedly connected to the bottom of the lifting connection frame (4); the bottom of the mechanism upper cover (501) is fixedly connected to a mechanism bottom shell (502); the outer wall of the mechanism bottom shell (502) is fixedly connected to a plurality of limit fixing sleeves (503); a motor fixing seat (504) is fixedly connected to one side of the top of the mechanism upper cover (501); a driving motor (505) is mounted on the motor fixing seat (504); an output end of the driving motor (505) is fixedly connected to a first pulley (506); a plurality of transmission belts (507) are arranged between the first pulley (506) and the power transmission mechanism (6); a plurality of groups of electric rods (508) are fixedly connected to the top of the mechanism upper cover (501); and a plane bearing assembly (509) is mounted between the mechanism upper cover (501) and the first pulley (506).

3. The group drilling machine tool according to claim 2, characterized in that: The plurality of position-limiting fixing sleeves (503) are respectively sleeved on the outer walls of the plurality of upright posts in the position-limiting support frame (2); the plurality of groups of electric rods (508) are three in number and correspond one-to-one to the plurality of outward-expanding gear mechanisms (7); and the number of the electric rods (508) in each group is two.

4. The group drilling machine tool according to claim 1, characterized in that: The power transmission mechanism (6) comprises a first plane bearing base (601) fixedly connected to the top center of the driving housing mechanism (5); the top of the first plane bearing base (601) is rotatably connected to a bearing top cover rod (602); the top and bottom of the bearing top cover rod (602) are respectively fixedly connected to a second pulley (603) and a transmission gear (604).

5. The group drilling machine tool according to claim 1, characterized in that: The outward expansion gear mechanism (7) comprises an inner and outer gear ring (701), the inner walls of the inner and outer gear ring (701) being rotatably connected to a bearing ring (702), and connecting fixing ears (703) being fixedly connected to both sides of the top of the inner wall of the bearing ring (702).

6. The group drilling machine tool according to claim 5, characterized in that: The inner walls and outer walls of the plurality of inner and outer toothed rings (701) are both toothed structures, and the diameters of the plurality of inner and outer toothed rings (701) increase sequentially from the inside to the outside, and the plurality of inner and outer toothed rings (701) mesh with each other.

7. The group drilling machine tool according to claim 1, characterized in that: The positioning locking mechanism (8) comprises two fixing rings (801), the inner walls of the two fixing rings (801) being fixedly connected to a plurality of first multi-slot clamping plates (802) and a plurality of second multi-slot clamping plates (803), respectively, and the outer walls of the two fixing rings (801) being fixedly connected to a plurality of perforated fixing ears (804).

8. The group drilling machine tool according to claim 7, characterized in that: The two fixing rings (801) are fixed by corresponding perforated fixing ears (804) and a plurality of bolts and nuts. The plurality of first multi-slot clamping plates (802) and the plurality of second multi-slot clamping plates (803) correspond to each other one by one and are symmetrical structures. The plurality of first multi-slot clamping plates (802) and the plurality of second multi-slot clamping plates (803) are provided with arc grooves on the sides close to each other.

9. The group drilling machine tool according to claim 1, characterized in that: The adjustable drilling mechanism (9) comprises a worm gear transmission bar (901), one end of the worm gear transmission bar (901) is fixedly connected to a second plane bearing base (902), a plurality of limit clamping columns (903) are fixedly connected to the top of the second plane bearing base (902), a plane bearing top cover (904) is rotatably connected inside the second plane bearing base (902), a transmission cylinder (905) is fixedly connected to the center of the plane bearing top cover (904), a transmission gear (906) is fixedly connected to the top of the transmission cylinder (905), a limit bearing (907) is sleeved on the bottom of the outer wall of the transmission cylinder (905), both sides of the outer wall of the limit bearing (907) are fixedly connected to T-shaped sliding rods (908), a detachable drill rod (909) is installed at the bottom of the transmission cylinder (905), and two bolt assemblies (910) are installed between the transmission cylinder (905) and the detachable drill rod (909).

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