Combined drilling device

Abstract

The utility model relates to the technical field of track shoes, in particular to a combined drilling device. The device comprises a workbench, two positioning bottom plates are fixed to one side of the top of the workbench, and first guide columns are fixed to the four end corners of the sides, close to each other, of the two positioning bottom plates. According to the combined drilling device, due to the design of the drilling mechanism, machining of two holes can be completed through one-time feeding after a part is clamped and positioned, the machining efficiency is doubled, and the hole pitch tolerance can be effectively guaranteed; the clamping mechanism can well clamp and fix the track shoe, the situation that due to the fact that the clamping effect of the drilling clamp is not ideal, a drilled hole deviates and is not concentric, connection of the track shoe and a connecting hole of a track link is not matched, and consequently a workpiece is scrapped is avoided, track shoes of different models and sizes can be adjusted and clamped, and the machining efficiency is improved. Convenience is brought to drilling processing; and the design of the lifting mechanism can adapt to machining of track shoes with different thicknesses, a cushion block is not needed, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crawler plates, in particular to a composite drilling device. Background Art

[0002] Crawler travel mechanisms are widely used in construction machinery. They are an indispensable part of crawler travel mechanisms such as bulldozers and excavators. They mostly work in harsh working environments such as ore development and construction excavation. Therefore, there are strict requirements for the processing of various parts that make up the crawler. The traditional processing method is sequential drilling by a drilling machine or one-time clamping drilling by a machining center. Due to the limitations of the processing method, the processing of parts takes a long time. The drilling machine processing has repeated positioning hole spacing tolerances that are difficult to control, and the machining center has low equipment utilization and high production costs. In addition, due to the large batch size of parts and tight construction period, the traditional processing method is inefficient and it is difficult to ensure production progress.

[0003] For example, a Chinese utility model patent (CN213888252U) discloses a drilling device for processing composite metal track plates. The utility model solves the problem that the existing drilling device for drilling track plates needs to be manually adjusted to drill holes on the other side or manually adjust or change the direction of the track plate to drill holes on the other side after drilling once, which is very inconvenient and makes the drilling efficiency low. The utility model includes a motor, the right end of the motor is fixedly connected to the inner wall of the right end of the device housing, the left end of the motor is fixedly connected to the right end of the first rotating shaft, and the The left end of the No. 1 rotating shaft is fixedly connected to the right end of the bevel gear, the left end of the bevel gear is fixedly connected to the right end of the fixed column, the left end of the fixed column is slidably connected to the hollow rod, the left end of the hollow rod is fixedly connected to the right end of the No. 1 connecting rod, the left end of the No. 1 connecting rod is fixedly connected to the right end of the rack, the lower end of the rack is slidably connected to the upper end of the limit rod, the upper end of the rack is meshed with the lower end of the gear, the left end of the gear is fixedly connected to the right end of the No. 2 rotating shaft, the left end of the No. 2 rotating shaft is fixedly connected to the right end of the disk, the left end of the disk is fixedly connected to the right end of the hollow column, and the hollow column is sleeved with the outer end of the No. 1 sliding rod.

[0004] When using the above technology, it was found that the following technical problems exist in the prior art: due to the limitation of the processing form, the above equipment takes a long time to process parts, the drilling machine processing has the problem of repeated positioning hole spacing tolerance being difficult to control, the machining center has the problem of low equipment utilization and high production cost; the above equipment is not good enough in clamping and fixing the track plate, and the clamping effect of the drilling fixture is not ideal, resulting in the drilled holes being deviated and eccentric, making the connection holes of the track plate and the track section mismatched; the above equipment still requires pads to adapt to the processing of track plates of different thicknesses, and the processing efficiency is low. For this reason, we designed a composite drilling device to provide another technical solution to the above technical problems. Utility Model Content

[0005] The utility model aims to provide a composite drilling device. The design of the drilling mechanism enables the processing of two holes to be completed in one feeding after the parts are clamped and positioned, and the processing efficiency is doubled, and the hole spacing tolerance can be effectively guaranteed; the clamping mechanism can better clamp and fix the track plate, and avoid deviation and eccentricity of the drilled hole caused by the unsatisfactory clamping effect of the drilling fixture, so that the connection hole of the track plate and the track section does not match, resulting in the scrapping of the workpiece, and the track plates of different models and sizes can be adjusted and clamped, which brings convenience to the drilling process; the design of the lifting mechanism can adapt to the processing of track plates of different thicknesses, without the use of pads, and improves the processing efficiency.

[0006] The utility model composite drilling device comprises a workbench, two positioning base plates are fixed on one side of the top of the workbench, four end corners of the two positioning base plates close to each other are fixed with first guide columns, the outer sides of the four first guide columns are slidably connected to a transmission box assembly, the transmission box assembly is provided with a drilling mechanism, the other side of the top of the workbench is slidably connected to a clamp placement plate, the clamp placement plate is provided with a clamping mechanism, the clamping mechanism is used for clamping track shoes, a first motor is fixed to one side of one end of the workbench, a lifting mechanism is provided at the output end of the first motor, and the lifting mechanism is used to drive the clamp placement plate to rise and fall.

[0007] As a preferred embodiment of the composite drilling device provided by the utility model, the drilling mechanism includes an equipment main shaft, a first transmission gear, a second transmission gear, a first transmission roller, a rolling bearing, a tool sleeve and a drilling cutter, the top of the inner side of the transmission box assembly is rotatably connected to the equipment main shaft, the outer side of the equipment main shaft and the inside of the transmission box assembly is fixed with a first transmission gear, the bottom of the first transmission gear is meshed and connected with two second transmission gears, the inner sides of the two second transmission gears are fixed with a first transmission roller, the two first transmission rollers are rotatably connected to the transmission box assembly, rolling bearings are fixed on one side of the outer sides of the two first transmission rollers and located inside the transmission box assembly, the two rolling bearings are fixed to the transmission box assembly, a tool sleeve is fixed on one side of the two rolling bearings, the two tool sleeves are rotatably connected to the transmission box assembly, and a drilling cutter is fixed on the inner sides of the two tool sleeves.

[0008] As a preferred embodiment of the composite drilling device provided by the utility model, the clamping mechanism includes a second motor, a second transmission roller, a rotating worm wheel, a rotating worm, a third rotating roller, a third rotating gear, a movable rack, a movable plate and a clamping plate, a second motor is fixed to the bottom end of one side of the fixture placement plate, a second transmission roller is fixed to the output end of the second motor, the second transmission roller is rotatably connected to the fixture placement plate, a rotating worm wheel is fixed to the outside of the second transmission roller and located inside the fixture placement plate, one end of the rotating worm wheel is meshedly connected to the rotating worm, a third rotating gear is fixed to the inside of the rotating worm, the third rotating gear is rotatably connected to the fixture placement plate, the top of the third rotating roller passes through the fixture placement plate and is fixed with a third rotating gear, both sides of the third rotating gear are meshedly connected with movable racks, a movable plate is fixed to the bottom of the two movable racks, the two movable plates are slidably connected to the fixture placement plate, the tops of the ends of the two movable plates close to each other are fixed with clamping plates, and a fixing component is also provided on the fixture placement plate.

[0009] As a preferred embodiment of the composite drilling device provided by the utility model, the fixing assembly includes a fixing screw sleeve, a pull rod, a fixing nut and a pressure plate, and fixing screw sleeves are fixed at both ends of the top of the clamp placement plate, the inner sides of the two fixing screw sleeves are threadedly connected with pull rods, the top ends of the outer sides of the two pull rods are threadedly connected with fixing nuts, and a pressure plate is tightly fitted on the outer sides of the two pull rods and on the tops of the two fixing nuts.

[0010] As a preferred embodiment of the composite drilling device provided by the utility model, the lifting mechanism includes a fourth transmission roller, a first bevel gear, a second bevel gear, a threaded rod, a movable threaded sleeve, a second guide column and a connecting plate, the output end of the first motor is fixed with a fourth transmission roller, the fourth transmission roller is rotatably connected to the workbench, the two ends of the outer side of the fourth transmission roller are fixed with first bevel gears, one side of the two first bevel gears are meshed and connected with the second bevel gear, the inner sides of the two second bevel gears are fixed with second bevel gears, the bottoms of the two second bevel gears are fixed to the workbench, the outer sides of the two threaded rods are meshed and connected with movable threaded sleeves, the tops of the two movable threaded sleeves are fixed to the fixture placement plate, the four end corners on the inner side of the fixture placement plate are slidably connected with second guide columns, the bottoms of multiple second guide columns are fixed to the top of the workbench, and the tops of the two second guide columns located at the same end are fixed with a connecting plate.

[0011] As a preferred embodiment of the composite drilling device provided by the utility model, the tool sleeve has an eccentric function.

[0012] As a preferred embodiment of the composite drilling device provided by the utility model, anti-slip grooves are evenly distributed on the inner sides of the two clamping plates close to one end.

[0013] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0014] At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:

[0015] The composite drilling device provided by the utility model has a drilling mechanism designed so that after the parts are clamped and positioned, two holes can be processed in one feeding, the processing efficiency is doubled, and the hole spacing tolerance can be effectively guaranteed; the clamping mechanism can better clamp and fix the track shoe, avoiding deviation and eccentricity of the drilled hole caused by unsatisfactory clamping effect of the drilling fixture, which makes the connection between the track shoe and the track section mismatched and causes the workpiece to be scrapped, and track shoes of different models and sizes can be adjusted and clamped, which brings convenience to the drilling process; the design of the lifting mechanism can adapt to the processing of track shoes of different thicknesses, without the use of pads, and improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the first transmission gear and the second transmission gear of the utility model;

[0018] Figure 3 For this utility model Figure 2 A magnified image of point A;

[0019] Figure 4 This is a schematic diagram of the connection structure between the second guide column and the fixture placement plate of the utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure between the movable rack and the movable plate of the utility model;

[0021] Figure 6 For this utility model Figure 5 The enlarged view of point B;

[0022] Figure 7 This is a schematic diagram of the connection structure of the threaded rod and the movable threaded sleeve of the utility model;

[0023] Figure 8 For this utility model Figure 7 Enlarged view of point C;

[0024] Fig. 9 It is a structural schematic diagram of the pressing plate of the utility model.

[0025] In the figure: 1. workbench; 2. positioning base plate; 3. first guide column; 4. transmission box assembly; 5. fixture placement plate; 6. first motor; 7. equipment spindle; 8. first transmission gear; 9. second transmission gear; 10. first transmission roller; 11. rolling bearing; 12. tool sleeve; 13. second motor; 14. second transmission roller; 15. rotating worm gear; 16. rotating worm; 17. third rotating roller; 18. third rotating gear; 19. moving rack; 20. moving plate; 21. clamping plate; 22. fixing screw sleeve; 23. pull rod; 24. fixing nut; 25. pressure plate; 26. fourth transmission roller; 27. first bevel gear; 28. second bevel gear; 29. ​​threaded rod; 30. moving threaded sleeve; 31. second guide column; 32. connecting plate; 33. drilling tool. DETAILED DESCRIPTION

[0026] In order to solve this technical problem, the utility model provides a composite drilling device.

[0027] Specifically, please refer to Figure 1-Figure 9 The composite drilling device specifically includes: a workbench 1, two positioning base plates 2 are fixed on one side of the top of the workbench 1, and the four end corners of the two positioning base plates 2 close to each other are fixed with first guide columns 3, and the outer sides of the four first guide columns 3 are slidably connected to a transmission box assembly 4, and the transmission box assembly 4 is provided with a drilling mechanism, and the other side of the top of the workbench 1 is slidably connected to a fixture placement plate 5, and the fixture placement plate 5 is provided with a clamping mechanism, and the clamping mechanism is used for clamping the crawler shoe, and a first motor 6 is fixed to one side of one end of the workbench 1, and a lifting mechanism is provided at the output end of the first motor 6, and the lifting mechanism is used to drive the fixture placement plate 5 to rise and fall.

[0028] The composite drilling device provided by the utility model has a drilling mechanism designed so that after the parts are clamped and positioned, two holes can be processed in one feeding, the processing efficiency is doubled, and the hole spacing tolerance can be effectively guaranteed; the clamping mechanism can better clamp and fix the track shoe, avoiding deviation and eccentricity of the drilled hole caused by unsatisfactory clamping effect of the drilling fixture, which makes the connection between the track shoe and the track section mismatched and causes the workpiece to be scrapped, and track shoes of different models and sizes can be adjusted and clamped, which brings convenience to the drilling process; the design of the lifting mechanism can adapt to the processing of track shoes of different thicknesses, without the use of pads, and improves the processing efficiency.

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] Embodiment 1

[0032] Reference Figure 1-Figure 3 The composite drilling device comprises a workbench 1, two positioning base plates 2 are fixed on one side of the top of the workbench 1, and the four end corners of the two positioning base plates 2 close to each other are fixed with first guide columns 3. The straightness accuracy of drilling is guaranteed by multiple first guide columns 3. The first guide columns 3 are processed with high precision and are designed to be short and thick with high transmission accuracy. A transmission box assembly 4 is slidably connected to the outer sides of the four first guide columns 3. The transmission box assembly 4 is the core component of the composite drilling device. The transmission box assembly 4 is directly mounted on the main shaft 7 of the equipment. There is no intermediate link in power transmission to ensure stable power input. A drilling mechanism is arranged on the transmission box assembly 4. A fixture placement plate 5 is slidably connected to the other side of the top of the workbench 1. A clamping mechanism is arranged on the fixture placement plate 5. The clamping mechanism is used for clamping the track shoe. A first motor 6 is fixed to one side of one end of the workbench 1. A lifting mechanism is arranged at the output end of the first motor 6. The lifting mechanism is used to drive the fixture placement plate 5 to rise and fall.

[0033] The drilling mechanism includes a device spindle 7, a first transmission gear 8, a second transmission gear 9, a first transmission roller 10, a rolling bearing 11, a tool sleeve 12 and a drilling cutter 33. The top of the inner side of the transmission box assembly 4 is rotatably connected to the device spindle 7. The outer side of the device spindle 7 and the inside of the transmission box assembly 4 are fixed with a first transmission gear 8. The bottom of the first transmission gear 8 is meshed and connected with two second transmission gears 9. The designers design the gear pair to transmit power according to the part hole spacing, and check the strength of the first transmission gear 8 and the second transmission gear 9 according to the drilling cutting force. The first transmission gear 8 and the second transmission gear 9 are heat-treated and finely processed to ensure the stability of the power transmission and ensure that the drilling cutter 33 will not get stuck during processing. The inner sides of the two second transmission gears 9 are fixed. There is a first transmission roller 10, and the two first transmission rollers 10 are both rotatably connected to the transmission box assembly 4. A rolling bearing 11 is fixed on one side of the outer side of the two first transmission rollers 10 and located inside the transmission box assembly 4. The two rolling bearings 11 are fixed to the transmission box assembly 4. A tool sleeve 12 is fixed on one side of the two rolling bearings 11. The two tool sleeves 12 are both rotatably connected to the transmission box assembly 4, and a drilling tool 33 is fixed on the inner side of the two tool sleeves 12; the design of the drilling mechanism enables the processing of two holes to be completed in one feeding after the parts are clamped and positioned, and the processing efficiency is doubled, and the hole spacing tolerance can be effectively guaranteed; at the same time, the first motor 6 is a special fast drill with chamfering function, which can process the chamfer of the hole mouth when drilling, reducing the parts processing procedures and greatly improving production efficiency.

[0034] Embodiment 2

[0035] Reference Figure 4-Figure 9 , a composite drilling device, a clamping mechanism includes a second motor 13, a second transmission roller 14, a rotating worm wheel 15, a rotating worm 16, a third rotating roller 17, a third rotating gear 18, a movable rack 19, a movable plate 20 and a clamping plate 21, a second motor 13 is fixed to the bottom end of one side of the fixture placement plate 5, a second transmission roller 14 is fixed to the output end of the second motor 13, the second transmission roller 14 is rotatably connected to the fixture placement plate 5, a rotating worm wheel 15 is fixed to the outside of the second transmission roller 14 and located inside the fixture placement plate 5, one end of the rotating worm wheel 15 is meshedly connected to the rotating worm 16, a third rotating gear 18 is fixed to the inside of the rotating worm 16, the third rotating gear 18 is rotatably connected to the fixture placement plate 5, and the third rotating roller The top of 17 passes through the fixture placement plate 5 and is fixed with a third rotating gear 18. Both sides of the third rotating gear 18 are meshed and connected with moving racks 19. The bottoms of the two moving racks 19 are fixed with moving plates 20. The two moving plates 20 are slidably connected to the fixture placement plate 5. The tops of the ends of the two moving plates 20 that are close to each other are fixed with clamping plates 21. A fixing component is also provided on the fixture placement plate 5. The clamping mechanism can better clamp and fix the track shoe to avoid deviation and eccentricity of the drilled hole caused by unsatisfactory clamping effect of the drilling fixture, which makes the connection between the track shoe and the track section mismatched, resulting in the scrapping of the workpiece. In addition, track shoes of different models and sizes can be adjusted and clamped, which brings convenience to drilling processing.

[0036] The fixing assembly includes a fixing screw sleeve 22, a pull rod 23, a fixing nut 24 and a pressure plate 25. The two ends of the top of the fixture placement plate 5 are fixed with fixing screw sleeves 22, the inner sides of the two fixing screw sleeves 22 are threadedly connected with the pull rods 23, the top ends of the outer sides of the two pull rods 23 are threadedly connected with the fixing nuts 24, and a pressure plate 25 is tightly fitted on the outer sides of the two pull rods 23 and located on the tops of the two fixing nuts 24. Rectangular grooves are provided on the inner sides of the two ends of the pressure plate 25. The pressure plate 25 is clamped with the pull rod 23 through the rectangular grooves and fixed by the fixing nuts 24. The fixing assembly can effectively ensure the positioning accuracy of the parts.

[0037] The lifting mechanism includes a fourth transmission roller 26, a first bevel gear 27, a second bevel gear 28, a threaded rod 29, a movable threaded sleeve 30, a second guide column 31 and a connecting plate 32. The output end of the first motor 6 is fixed with the fourth transmission roller 26, and the fourth transmission roller 26 is rotatably connected to the workbench 1. The first bevel gears 27 are fixed to both ends of the outer side of the fourth transmission roller 26, and the second bevel gears 28 are meshed and connected to one side of the two first bevel gears 27, and the second bevel gears 28 are fixed to the inner sides of the two second bevel gears 28. The bottoms are fixed to the workbench 1, the outer sides of the two threaded rods 29 are meshed with movable threaded sleeves 30, the tops of the two movable threaded sleeves 30 are fixed to the fixture placement plate 5, the four end corners on the inner side of the fixture placement plate 5 are slidably connected with second guide columns 31, the bottoms of the multiple second guide columns 31 are fixed to the top of the workbench 1, and the tops of the two second guide columns 31 located at the same end are fixed with connecting plates 32. The design of the lifting mechanism can adapt to the processing of track shoes of different thicknesses, without the use of pads, thereby improving the processing efficiency.

[0038] The tool sleeve 12 has an eccentric function, and the tool sleeve 12 can flexibly adjust the drilling size according to the hole tolerance; the inner sides of the two clamping plates 21 close to one end are evenly provided with anti-skid grooves, and the opening of the anti-skid grooves makes it difficult for the track plate to fall off the clamp placement plate 5.

[0039] The use process of the composite drilling device provided by the utility model is as follows: the user places the crawler shoe to be drilled on the fixture placement plate 5, the user energizes the second motor 13, and the output end of the second motor 13 drives the second transmission roller 14 to rotate. Since the second transmission roller 14 is fixed to the rotating worm gear 15, the rotation of the second transmission roller 14 drives the rotating worm gear 15 to rotate, so that the rotating worm 16 meshing with the rotating worm gear 15 also rotates. Since the rotating worm 16 is fixed to the third rotating roller 17, and the third rotating roller 17 is rotationally connected to the fixture placement plate 5, the rotation of the rotating worm 16 drives the third rotating roller 17 to rotate, so that the third rotating gear 18 fixed to the third rotating roller 17 also rotates. , so that the two moving racks 19 meshing with the third rotating gear 18 also move along. Since the moving rack 19 is fixed to the moving plate 20 and the moving plate 20 is slidably connected to the fixture placement plate 5, one end of the moving rack 19 drives the moving plate 20 to move, so that the clamping plate 21 fixed to the moving plate 20 also moves along. The movement of the clamping plate 21 clamps the track shoe placed on the fixture placement plate 5. The clamping mechanism can better clamp and fix the track shoe, avoiding deviation and eccentricity of the drilled hole caused by the unsatisfactory clamping effect of the drilling fixture, so that the track shoe and the connection hole of the track section are not matched, resulting in the scrapping of the workpiece. In addition, the track shoes of different models and sizes can be adjusted and clamped, which brings convenience to the drilling process.

[0040] The user inserts the fixing nut 24 into the pull rod 23, and the user threadably connects the pull rod 23 with the fixing nut 22. Rectangular grooves are provided on the inner sides of both ends of the pressure plate 25. The pressure plate 25 is clamped with the pull rod 23 through the rectangular grooves and fixed by the fixing nut 24. The pull rod 23 is rotated. When the pressure plate 25 reaches the top of the track shoe, the pull rod 23 is stopped from being rotated, and the fixing nut 24 is tightened upward. The fixing assembly can effectively ensure the positioning accuracy of the parts; the user energizes the first motor 6, and the output end of the first motor 6 drives the fourth transmission roller 26 to rotate. Since the fourth transmission roller 26 is fixedly connected to the first bevel gear 27, the rotation of the fourth transmission roller 26 drives the first bevel gear 27 to rotate, thereby making the fourth transmission roller 26 connected to the first bevel gear 27 rotate. The second bevel gear 28 meshing with the bevel gear 27 also rotates. Since the second bevel gear 28 is fixed to the threaded rod 29 and the threaded rod 29 is threadedly connected to the movable threaded sleeve 30, the rotation of the second bevel gear 28 drives the threaded rod 29 to rotate, so that the movable threaded sleeve 30 threadedly connected to the second bevel gear 28 is lifted and lowered. Since the tops of the two movable threaded sleeves 30 are fixed to the fixture placement plate 5, the position of the fixture placement plate 5 is adjusted with the cooperation of the plurality of second guide columns 31, so that the position of the track shoe placed on the fixture placement plate 5 is adjusted. The design of the lifting mechanism can adapt to the processing of track shoes of different thicknesses, without the use of pads, thereby improving the processing efficiency.

[0041] The user starts the device, and the device main shaft 7 rotates. Since the device main shaft 7 is fixed to the first transmission gear 8, the rotation of the device main shaft 7 drives the first transmission gear 8 to rotate, so that the two second transmission gears 9 meshing with the first transmission gear 8 also rotate accordingly. Since the first transmission roller 10 is fixed to the second transmission gear 9 and the first transmission roller 10 is rotationally connected to the transmission box assembly 4, the rotation of the second transmission gear 9 drives the first transmission roller 10 to rotate. With the cooperation of the rolling bearing 11, the tool sleeve 12 fixed to the first transmission roller 10 also rotates. It is fixed to the drilling tool 33, so that the rotation of the tool sleeve 12 drives the drilling tool 33 to rotate. Since the transmission box assembly 4 is slidably connected with the multiple first guide columns 3, and the first guide columns 3 can ensure the straightness of the drilling, the two drilling tools 33 can process the track plate. The design of the drilling mechanism enables the parts to be clamped and positioned after one feeding to complete the processing of two holes, which doubles the processing efficiency and can effectively ensure the hole spacing tolerance. At the same time, the first motor 6 is a special fast drill with chamfering function, which can be used to chamfer the hole mouth when drilling, reducing the parts processing process and greatly improving production efficiency.

Claims

1. A composite drilling device, characterized in that: The invention comprises a workbench (1), wherein two positioning base plates (2) are fixed on one side of the top of the workbench (1), and first guide columns (3) are fixed on four end corners of the two positioning base plates (2) on the side close to each other. A transmission box assembly (4) is slidably connected to the outer sides of the four first guide columns (3), and a drilling mechanism is arranged on the transmission box assembly (4). A fixture placement plate (5) is slidably connected to the other side of the top of the workbench (1), and a clamping mechanism is arranged on the fixture placement plate (5), and the clamping mechanism is used for clamping a track shoe. A first motor (6) is fixed on one side of one end of the workbench (1), and a lifting mechanism is arranged on the output end of the first motor (6), and the lifting mechanism is used for driving the fixture placement plate (5) to rise and fall.

2. The composite drilling device according to claim 1, characterized in that: The drilling mechanism comprises a device main shaft (7), a first transmission gear (8), a second transmission gear (9), a first transmission roller (10), a rolling bearing (11), a tool sleeve (12) and a drilling tool (33); the top end of the inner side of the transmission box assembly (4) is rotatably connected to the device main shaft (7); the first transmission gear (8) is fixed on the outer side of the device main shaft (7) and located inside the transmission box assembly (4); the bottom of the first transmission gear (8) is meshingly connected to two second transmission gears (9); the inner sides of the two second transmission gears (9) are fixed with A first transmission roller (10), the two first transmission rollers (10) are both rotatably connected to the transmission box assembly (4), a rolling bearing (11) is fixed on one side of the outer side of the two first transmission rollers (10) and located inside the transmission box assembly (4), the two rolling bearings (11) are both fixed to the transmission box assembly (4), a tool sleeve (12) is fixed on one side of the two rolling bearings (11), the two tool sleeves (12) are both rotatably connected to the transmission box assembly (4), and a drilling tool (33) is fixed on the inner side of the two tool sleeves (12).

3. The composite drilling device according to claim 1, characterized in that: The clamping mechanism comprises a second motor (13), a second transmission roller (14), a rotating worm wheel (15), a rotating worm (16), a third rotating roller (17), a third rotating gear (18), a movable rack (19), a movable plate (20) and a clamping plate (21); a second motor (13) is fixed to the bottom end of one side of the clamp placement plate (5); a second transmission roller (14) is fixed to the output end of the second motor (13); the second transmission roller (14) is rotationally connected to the clamp placement plate (5); a rotating worm wheel (15) is fixed on the outside of the second transmission roller (14) and inside the clamp placement plate (5); one end of the rotating worm wheel (15) is meshingly connected to the rotating worm wheel (16). The third rotating gear (18) is fixed on the inner side of the rotating worm (16), and the third rotating gear (18) is rotatably connected to the fixture placement plate (5). The top end of the third rotating roller (17) passes through the fixture placement plate (5) and is fixed with the third rotating gear (18). Both sides of the third rotating gear (18) are meshingly connected with movable racks (19). The bottoms of the two movable racks (19) are fixed with movable plates (20). The two movable plates (20) are slidably connected to the fixture placement plate (5). The top ends of the two movable plates (20) that are close to each other are fixed with clamping plates (21). A fixing component is also provided on the fixture placement plate (5).

4. The composite drilling device according to claim 3, characterized in that: The fixing assembly comprises a fixing screw sleeve (22), a pull rod (23), a fixing nut (24) and a pressure plate (25); the fixing screw sleeves (22) are fixed at both ends of the top of the clamp placement plate (5); the inner sides of the two fixing screw sleeves (22) are threadedly connected to the pull rods (23); the top ends of the outer sides of the two pull rods (23) are threadedly connected to the fixing nuts (24); and a pressure plate (25) is tightly fitted on the outer sides of the two pull rods (23) and located on the tops of the two fixing nuts (24).

5. The composite drilling device according to claim 1, characterized in that: The lifting mechanism comprises a fourth transmission roller (26), a first bevel gear (27), a second bevel gear (28), a threaded rod (29), a movable threaded sleeve (30), a second guide column (31) and a connecting plate (32); the fourth transmission roller (26) is fixed to the output end of the first motor (6); the fourth transmission roller (26) is rotatably connected to the workbench (1); first bevel gears (27) are fixed to both ends of the outer side of the fourth transmission roller (26); one side of the two first bevel gears (27) is meshedly connected to the second bevel gears (28); the inner sides of the two second bevel gears (28) are meshedly connected to the second bevel gears (28); A second bevel gear (28) is fixed on each side, the bottoms of the two second bevel gears (28) are fixed to the workbench (1), the outer sides of the two threaded rods (29) are meshedly connected with movable threaded sleeves (30), the tops of the two movable threaded sleeves (30) are fixed to the fixture placement plate (5), the four end corners on the inner side of the fixture placement plate (5) are slidably connected with second guide columns (31), the bottoms of the plurality of second guide columns (31) are fixed to the top of the workbench (1), and the tops of the two second guide columns (31) located at the same end are fixed with a connecting plate (32).

6. The composite drilling device according to claim 2, characterized in that: The tool sleeve (12) has an eccentric function.

7. The composite drilling device according to claim 3, characterized in that: Anti-slip grooves are evenly distributed on the inner sides of the two clamping plates (21) close to one end thereof.

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