Vertical drilling and boring machine for machining tower crane standard knot main chord member

Abstract

The utility model discloses a vertical drilling and boring machine for processing a main chord member of a standard knot of a tower crane, which comprises a drilling and boring device, a mounting device, a base body device and a jacking device, and the drilling and boring device comprises a fixed column, a transmission case, a drill bit, a motor and a workbench; the fixed column is vertically arranged; the transmission case is vertically and movably arranged on the front side of the fixed column; one end of the drill bit is in transmission connection with the transmission case, and the other end of the drill bit downwards extends out of the bottom surface of the transmission case; the motor is vertically arranged on the top surface of the transmission case and is in transmission connection with the transmission case; the workbench is vertically arranged below the drill bit; the mounting device is horizontally arranged on the top surface of the workbench; the base body device is arranged on the workbench and is hollow, and the top face and the right side face of the base body device are open. And the jacking device is arranged in the base body device. Two-side machining of the main chord member can be achieved without station replacement, the working efficiency is improved, the machining precision is high, and the product quality is good.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tower machine standard section processing technical field especially relates to a vertical drilling and boring machine for processing tower machine standard section main chord. BACKGROUND

[0002] Tower crane is a kind of mechanical equipment for hoisting and carrying heavy objects, and is widely used in construction, bridge, power plant, shipbuilding and nuclear power station and other fields. It transports objects from one place to another through vertical and horizontal movement, greatly improves work efficiency and safety. Tower body is the main supporting part of tower crane, which is composed of multiple segments, and these segments are connected by pin shaft to ensure the stability and safety of the whole. The segments of tower body are divided into standard segments and non-standard segments, and the standard segments refer to the segments with the same shape and size, which are convenient for batch production and standardized management. Non-standard segments are customized according to specific requirements to meet the requirements of different construction sites and projects.

[0003] Main chord is a key component in tower machine standard section, and its main function is to support and connect other structural components to ensure the overall strength and stability of tower crane. When processing main chord, it needs to be punched to connect with other main chords and components. At present, the processing and manufacturing process of main chord mainly uses radial drill and drill jig for drilling and boring, and then goes to another work station for hole extrusion operation. This method has the problems of low surface roughness and size precision, low work efficiency, long processing cycle and time-consuming and labor-intensive. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a vertical drilling and boring machine for processing tower machine standard section main chord to solve the technical problems in the above background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A vertical drilling and boring machine for processing tower machine standard section main chord, comprising drilling and boring device, mounting device, base device, jacking device, the drilling and boring device includes fixed column, transmission box, drill bit, motor, workbench, the fixed column is vertically arranged, the transmission box is vertically arranged in the front side of fixed column, and the transmission box can move up and down on the front side of fixed column, the drill bit is vertically arranged, one end of which is connected with the transmission box, and the other end extends out of the bottom surface of transmission box, the motor is vertically arranged on the top surface of transmission box, and the output rod of the motor enters the inside of transmission box and is connected with the transmission box, the workbench is vertically arranged below the drill bit, the mounting device is horizontally arranged on the top surface of workbench, the base device is arranged on the workbench, which is hollow inside, and the top surface and the right side are open, and the jacking device is arranged in the base device.

[0007] Further, the workbench top surface is provided with a groove along the left-right direction; the groove is a reverse T-shaped structure and is provided with a plurality of grooves at intervals in front and back.

[0008] Further, the mounting device comprises a bottom plate, a fixed plate, a positioning plate and a horizontal plate; the bottom plate is an L-shaped plate structure, the horizontal surface thereof is arranged on the workbench top surface, the vertical surface thereof is arranged at the rear side of the horizontal edge, and a plurality of fixed slots are arranged at intervals in the left-right direction at the two ends of the horizontal surface; the positioning plate is horizontally arranged in front of the vertical surface of the bottom plate; the fixed plate is vertically arranged at the front side of the horizontal edge of the bottom plate, and a fixed hole is arranged in the front-rear direction at the upper portion of the fixed plate; and the horizontal plate is horizontally arranged on the top surface of the horizontal surface of the bottom plate and is provided with a plurality of horizontal plates at intervals in the left-right direction.

[0009] Further, the base device comprises an upper base and a lower base; the upper base and the lower base are L-shaped structures, and the upper base and the lower base are spliced with each other to form a mouth-shaped structure with the horizontal surface of the upper base on top; and the opening is arranged on the horizontal surface and the vertical surface of the upper base.

[0010] Further, the device further comprises a first positioning block and a second positioning block; the first positioning block is horizontally arranged in the left-right direction, and two first positioning blocks are arranged at the left and right sides of the bottom of the horizontal surface of the upper base; and the second positioning block is horizontally arranged in the left-right direction, and two second positioning blocks are arranged at the left and right sides of the front side of the vertical surface of the upper base.

[0011] Further, the device further comprises a limiting plate; the limiting plate is arranged at an angle at the right end of the base device.

[0012] Further, the device further comprises a fixed member, a connecting member, a screw rod, a push block and a top block; the connecting member is a cylindrical structure, and a through threaded hole is arranged in the middle portion of the connecting member; the fixed member is a right-angled trapezoidal structure, and two fixed members are arranged, the right-angled waist of the two fixed members is connected to the two side walls of the connecting member, and the oblique waist of the two fixed members is fixedly connected to the rear side of the vertical surface and the top surface of the horizontal surface of the lower base, respectively; the screw rod is threadedly connected to the threaded hole of the connecting member; the push block is sleeved on the upper end of the screw rod; and the top block is vertically connected to the top surface of the push block.

[0013] Further, the vertical surface and the horizontal surface of the lower base are provided with a channel corresponding to the position of the bottom of the screw rod for the movement of the screw rod.

[0014] Further, it further comprises a pressing device; the pressing device comprises a support, a connecting cylinder, a stud, a pressing head and a handle; the support is of L-shaped structure, the vertical face thereof is movably connected with the slotted workbench, and the horizontal face thereof extends to the top face of the base device; the connecting cylinder is vertically arranged on the side of the support horizontal face facing the base device, and a threaded hole is vertically formed in the middle portion thereof; the stud is vertically arranged and threadedly connected with the connecting cylinder; the pressing head is horizontally arranged, and the top face thereof is fixedly connected with the bottom face of the stud; and the handle is fixedly connected with the top face of the stud.

[0015] Further, it further comprises a supporting device; the supporting device comprises a bracket and supporting rollers; the bracket is horizontally arranged on the left side of the workbench; and the supporting rollers are arranged on the top face of the bracket and are spaced apart from each other.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1. The utility model discloses a workbench, mounting device, base device, tight device, pressing device are set up, and the main chord rod is installed in the base device, and the main chord rod is fixed through the tight device, and then the base device is installed on the mounting device, and the mounting device and the pressing device are fixed to the base device. After one side of the main chord rod is drilled and bored through the drilling and boring device, the base device can be turned over, and the other side of the main chord rod can be drilled and bored without changing the working position, thereby improving the working efficiency. The drilling and boring position of the main chord rod is positioned through the base device, the machining precision is high, and the product quality is good.

[0018] 2. In the mounting device, the base device is positioned through the positioning plate, and the base device is positioned and installed, and then the base device is locked on the bottom plate through the fixing device, so that the base device is stably installed on the bottom plate, the base device is prevented from moving during machining, and the machining precision is ensured.

[0019] 3. In the base device, the upper base body and the lower base body are connected to form a mouth-shaped structure, so that the structural stability of the base device is ensured. The horizontal face and the vertical face of the upper base body are provided with openings for the drill bit of the drilling and boring device to enter, so that the drill bit can enter the base device and drill and bore the main chord rod. After the base device is turned over, the other side of the main chord rod is turned over and faces upwards, so that the drilling and boring device drills and bores the other side of the main chord rod, and the two sides of the main chord rod are machined. The positioning block is arranged in the base device, and the limiting plate is arranged at the right end of the base device, so that the main chord rod can be quickly positioned, the drilling and boring position of the main chord rod is aligned with the opening of the upper base body, and the working efficiency is improved.

[0020] 4. The tight device of the utility model, through setting up screw rod and top block, can top the main chord rod in the upper base body, guarantee the stability of the main chord rod in the base body device, prevent the main chord rod from moving in the processing process, guarantee the processing precision and product quality.

[0021] 5. The tight device of the utility model, through setting up screw rod and pressure head, make the pressure head press on the base body device, further improve the stability of the base body device on the bottom plate, so as to further improve the processing precision and product quality of the main chord rod. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structure schematic diagram of the utility model;

[0023] Figure 2 It is the connecting structure schematic diagram of the utility model workbench and base body device;

[0024] Figure 3 It is the structure schematic diagram of the utility model workbench;

[0025] Figure 4 It is the structure schematic diagram of the utility model installation device;

[0026] Figure 5 It is the structure schematic diagram of the utility model base body device;

[0027] Figure 6 It is the structure schematic diagram of the utility model upper base body;

[0028] Figure 7 It is another view structure schematic diagram of the utility model upper base body;

[0029] Figure 8 It is the structure schematic diagram of the utility model lower base body;

[0030] Figure 9 It is the connecting structure schematic diagram of the utility model lower base body and tight device;

[0031] Figure 10 It is the connecting structure schematic diagram of the utility model screw rod in tight device;

[0032] Figure 11 It is the structure schematic diagram of the utility model tight device;

[0033] Figure 12 It is the structure schematic diagram of the utility model support device;

[0034] In the drawings, 1-drilling and boring device; 11-fixed column; 12-transmission box; 13-drill bit; 14-motor; 15-workbench; 151-slotted;

[0035] 2 - mounting device; 21 - base plate; 22 - fixing plate; 221 - fixing hole; 23 - positioning plate; 24 - cross plate;

[0036] 3 - base device; 31 - upper base; 331 - opening; 32 - lower base; 321 - chip removal hole; 33 - limiting plate; 34 - first positioning block; 35 - second positioning block; 36 - channel; 37 - locking hole;

[0037] 4 - tightening device; 41 - fixing piece; 42 - connecting piece; 43 - screw rod; 44 - push block; 45 - pressing block; 46 - elastic block;

[0038] 5 - pressing device; 51 - support; 52 - connecting cylinder; 53 - stud; 54 - pressing head; 55 - handle; 56 - connecting block;

[0039] 6 - supporting device; 61 - bracket; 62 - supporting roller. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below with reference to the drawings and preferred embodiments. However, it should be noted that many details in the description are only for the purpose of making the reader have a thorough understanding of one or more aspects of the present application, and the aspects of the present application can be realized even without these specific details.

[0041] As Figures 1-12As shown, a vertical boring machine for processing the main chord of the standard section of a tower crane comprises a boring device 1, a mounting device 2, a base device 3, and a tightening device 4. The boring device 1 comprises a fixed column 11, a transmission box 12, a drill bit 13, a motor 14, and a workbench 15; the fixed column 11 is vertically arranged; the transmission box 12 is vertically movably arranged on the front side of the fixed column 11, and the transmission box 12 can move up and down on the front side of the fixed column 11; the drill bit 13 is vertically arranged, one end of which is transmission-connected to the transmission box 12, and the other end extends downward from the bottom surface of the transmission box 12; the motor 14 is vertically arranged on the top surface of the transmission box 12, and its output rod downwardly enters the interior of the transmission box 12 and is transmission-connected to the transmission box 12; the workbench 15 It is vertically arranged below the drill bit 13; the mounting device 2 is horizontally arranged on the top surface of the workbench 15; the base device 3 is arranged on the workbench 15, its interior is hollow, and openings 331 are provided on the top surface and the right side surface; the tightening device 4 is arranged in the base device 3; the main chord is placed horizontally in the base device 3 and is fixed in the base device 3 by the tightening device 4, and the drill bit 13 of the drilling and boring device 1 descends into the base device 3 through the opening 331 on the top surface of the base device 3, and drills the upward side of the main chord inside the base device 3. After drilling and boring, the base device 3 is flipped to the left so that the opening 331 on the right side of the base device 3 and the other side of the main chord are facing upward, and then the other side of the main chord is drilled by the drilling and boring device 1.

[0042] like Figure 3 As shown, the top surface of the workbench 15 is provided with slots 151 along the left-right direction; the slots 151 are inverted T-shaped structures, and a plurality of slots 151 are provided at intervals in the front and back.

[0043] like Figure 4 As shown, the mounting device 2 includes a bottom plate 21, a fixing plate 22, a positioning plate 23, and a horizontal plate 24; the bottom plate 21 is an L-shaped plate structure, the bottom surface of the horizontal plane is arranged on the top surface of the workbench 15, the vertical plane is located at the rear side of the horizontal side, and the left and right ends of the horizontal plane are provided with fixing grooves; a plurality of fixing grooves are arranged at intervals on the left and right sides, and the fixing grooves of the bottom plate 21 are connected to the slots 151 of the workbench 15 by bolts to ensure the stability of the bottom plate 21; the positioning plate 23 is arranged horizontally on the front and rear sides of the vertical front of the bottom plate 21, and the positioning plate 23 is used to locate the placement position of the base device 3, At the same time, it prevents the base device 3 from falling; the fixed plate 22 is vertically arranged on the front side of the horizontal edge of the bottom plate 21, and a fixing hole 221 is opened on its upper part along the front-to-back direction. There are two fixing holes 221 at intervals on the left and right, and threads are provided in the fixing holes 221. By using bolts to screw into the fixing holes 221, the base device 3 can be fixed, and the positioning plate 23 is used to firmly install the base device 3 on the workbench 15 to prevent movement during drilling and boring; the horizontal plate 24 is horizontally arranged on the top surface of the horizontal plane of the bottom plate 21, and multiple horizontal plates are provided at intervals on the left and right to support the base device 3.

[0044] As shown in Figures 5-9 The base device 3 includes an upper base 31 and a lower base 32. The upper base 31 and the lower base 32 are L-shaped structures. The upper base 31 and the lower base 32 are spliced with each other to form a square structure with the horizontal plane of the upper base 31 on top. One end of the main chord, which needs to be drilled and bored, is placed inside the upper base 31 and the lower base 32 and is fixed in the upper base 31 by the jacking device 4. The opening 331 is provided on the horizontal plane and the vertical plane of the upper base 31. The drill bit 13 of the drilling and boring device 1 enters the inside of the upper base 31 and the lower base 32 through the opening 331 on the top surface of the upper base 31 to drill and bore one side of the main chord. After drilling and boring is completed, the upper base 31 and the lower base 32 are turned 90° to the left. The upper base 31 drives the main chord to turn to the left, so that the opening 331 on the right side of the upper base 31 and the other side of the main chord face upward. Then the drill bit 13 of the drilling and boring device 1 enters the inside of the upper base 31 and the lower base 32 through the opening 331 to drill and bore the other side of the main chord.

[0045] As shown in Figures 8-9 In another embodiment, the lower base 32 is provided with a through chip removal hole 321 on the horizontal plane and the vertical plane, which is used to remove the waste chips generated by drilling and boring, facilitate cleaning the work area, and ensure the neatness of the work area.

[0046] As shown in Figures 5-7 The base device 3 further includes a limiting plate 33. The limiting plate 33 is obliquely arranged on the right end surface of the base device 3. The upper left side surface of the limiting plate 33 is fixedly connected with the right side surface of the horizontal plane of the upper base 31, and the lower left side surface of the limiting plate 33 is fixedly connected with the right side surface of the vertical plane of the upper base 31. The limiting plate 33 is used to limit and position the position of the main chord. When the limiting plate 33 enters from the left end of the base device 3 and the right end of the main chord contacts the limiting plate 33, the drilling and boring positions on the horizontal plane and the vertical plane of the main chord are respectively aligned with the openings 331 on the horizontal plane and the vertical plane of the upper base 31, so as to quickly position the position of the main chord and improve the work efficiency.

[0047] As shown in Figure 7 The base device 3 further includes a first positioning block 34 and a second positioning block 35. The first positioning block 34 is horizontally arranged left and right. Two first positioning blocks 34 are arranged on the left and right sides of the bottom of the horizontal plane of the upper base 31. The second positioning block 35 is horizontally arranged left and right. Two second positioning blocks 35 are arranged on the left and right sides of the front side of the vertical plane of the upper base 31. The first positioning block 34 and the second positioning block 35 are used to abut against the horizontal plane and the vertical plane of the main chord, so as to ensure the accuracy of positioning, reduce errors, and cooperate with the jacking device 4 to ensure the stability of the main chord in the machining process.

[0048] As shown in Figure 7As shown, in another embodiment, the horizontal plane and vertical plane of the upper base body 31 are respectively spaced apart to be provided with locking holes 37; the locking holes 37 are provided with threads; by screwing bolts into the locking holes 37, the clamping device 4 is matched to enhance the fixing effect, prevent the main chord from loosening during the drilling and boring process, and further improve the machining precision and efficiency.

[0049] As shown in the drawings, Figures 8-10 The clamping device 4 includes a fixing member 41, a connecting member 42, a screw rod 43, a push block 44, and a top block 45. The connecting member 42 is in a cylindrical structure and is provided with a through threaded hole in the middle. The fixing member 41 is in a right-angled trapezoidal structure and is provided with two fixing members 41. The right-angled waists of the two fixing members 41 are connected to the two side walls of the connecting member 42, and the oblique waists of the two fixing members 41 are respectively fixedly connected to the rear side of the vertical plane and the top surface of the horizontal plane of the lower base body 32. The right-angled trapezoidal structure of the fixing member 41 provides firm support to ensure the structural stability of the clamping device 4. The screw rod 43 is threadedly connected to the threaded hole of the connecting member 42. The push block 44 is in a cylindrical structure with a hollow interior and an open bottom end 331, and the bottom surface of the push block 44 is sleeved on the upper end of the screw rod 43. The top block 45 is in an isosceles trapezoidal structure, and the sum of the internal angles of the two waists intersecting with each other is 90°. The lower base of the top block 45 is perpendicularly connected to the top surface of the push block 44. After the main chord enters the base body device 3 and abuts against the first positioning block 34 and the second positioning block 35 respectively, the screw rod 43 is rotated to drive the push block 44 and the top block 45 to move towards the main chord, so that the two waists of the top block 45 abut against the horizontal plane and the vertical plane of the main chord respectively, and the main chord is stably fixed on the upper base body 31 in cooperation with the first positioning block 34 and the second positioning block 35, thereby ensuring the stability of the main chord during the drilling and boring and turning of the base body device 3.

[0050] As shown in the drawings, Figure 10 In another embodiment, an elastic block 46 is further included. The elastic block 46 is sleeved on the upper end of the screw rod 43, and the push block 44 is sleeved on the elastic block 46. The elastic block 46 can absorb and alleviate the vibration generated during the drilling and boring process, improve the drilling and boring precision and surface quality, reduce the wear and damage to other components, and prolong the service life.

[0051] As shown in the drawings, Figure 9 In another embodiment, two clamping devices 4 are spaced apart left and right. The two clamping devices 4 can further improve the stability of the main chord.

[0052] As shown in the drawings, Figures 8-9 The lower base body 32 is provided with a channel 36 corresponding to the position of the bottom of the screw rod 43. The channel 36 is used for the movement of the screw rod 43. The channel 36 ensures that the screw rod 43 has sufficient movement stroke to clamp or loosen the main chord, so that the screw rod 43 can be smoothly operated when clamping or loosening the main chord.

[0053] As Figure 11 The pressing device 5 includes a support 51, a connecting cylinder 52, a stud 53, a pressing head 54, and a handle 55. The support 51 is in an L-shaped structure, and the vertical face thereof is movably connected to the slotted groove 151 of the workbench 15, and the horizontal face thereof extends to the top face of the base device 3. The connecting cylinder 52 is vertically arranged on the side of the support 51 facing the base device 3, and a threaded hole is vertically formed in the middle of the connecting cylinder 52. The stud 53 is vertically arranged and is threadedly connected to the connecting cylinder 52. The pressing head 54 is horizontally arranged, and the top face thereof is fixedly connected to the bottom face of the stud 53. The handle 55 is fixedly connected to the top face of the stud 53. By rotating the handle 55, the stud 53 is driven to move in the connecting cylinder 52, and the stud 53 drives the pressing head 54 to descend, so that the pressing head 54 is pressed on the base device 3, the base device 3 is fixed, the stability of the base device 3 is further improved, the base device 3 is prevented from moving during the drilling and boring process, the stability of the main chord during the drilling and boring process is ensured, vibration and movement are reduced, and the drilling and boring precision and efficiency are improved.

[0054] As Figure 11 In another embodiment, the bottom end of the support 51 is provided with a connecting block 56, the connecting block 56 and the support 51 form an inverted T-shaped structure, and are matched with the inverted T-shaped slotted groove 151 on the top face of the workbench 15, so that the pressing device 5 can slide into or out of the slotted groove 151, and the pressing device 5 is convenient to disassemble and replace.

[0055] As Figures 1-2 In another embodiment, the pressing device 5 is provided with two, which are respectively and left and right spaced apart on both sides of the bottom plate 21. The two pressing devices 5 can further improve the fixing effect of the base device 3.

[0056] As Figure 12 The support device 6 includes a bracket 61 and support rollers 62. The bracket 61 is horizontally arranged on the left side of the workbench 15. The support rollers 62 are arranged on the top face of the bracket 61 and are left and right spaced apart.

[0057] The working mode of the utility model is as follows:

[0058] Firstly, the base plate 21 is placed on the workbench 15, and after adjusting the reference and size, the fixed slot of the base plate 21 is locked with the slotted 151 of the workbench 15 through the bolt. One end of the main chord is put into the base body device 3, and the horizontal plane top surface and the vertical plane back side of the main chord are respectively abutted with the first positioning block 34 and the second positioning block 35, and at the same time, the right end of the main chord is in contact with the limiting plate 33. At this time, the drilling and boring position of the horizontal plane and the vertical plane of the main chord correspond to the opening 331 of the horizontal plane and the vertical plane of the upper base body 31 respectively. The screw rod 43 of the jacking device 4 is screwed, the push block 44 and the top block 45 are moved towards the main chord under the driving of the screw rod 43, and the two waists of the top block 45 are respectively pressed against the horizontal plane bottom surface and the vertical plane front side surface of the main chord. Then the bolt is screwed into the locking hole 37, and the main chord is stably fixed in the upper base body 31 by cooperating with the jacking device 4. The base body device 3 with the installed main chord is placed on the base plate 21, the right end of the base body device 3 is abutted against the positioning plate 23, and then the position of the base body device 3 is adjusted in the left-right direction, so that the drilling and boring position on the horizontal plane of the main chord is aligned with the drill bit 13 of the drilling and boring device 1. The bolt is screwed into the fixing hole 221 on the fixed plate 22, and the base body device 3 is fixed in the horizontal plane. The handle 55 of the pressing device 5 is screwed, the stud 53 is moved in the connecting cylinder 52, the pressing head 54 is lowered under the driving of the stud 53, and the pressing head 54 is pressed on the base body device 3, so as to fix the base body device 3 in the vertical plane. At this time, the supporting roller 62 of the supporting device 6 supports the other side of the main chord.

[0059] The drilling and boring device 1 is started, the motor 14 drives the drill bit 13 to rotate through the transmission box 12, and then the drill bit 13 is moved downward through the transmission box 12 on the front side of the fixed column 11, so as to drive the drill bit 13 to move downward. The drill bit 13 enters the base body device 3 through the opening 331 on the horizontal plane of the upper base body 31, and the drilling and boring position on the horizontal plane of the main chord can be drilled and bored. After the drilling and boring on the plane is completed, the drill bit 13 is moved upward under the driving of the transmission box, so that the drill bit 13 leaves the base body device 3.

[0060] After the drilling and boring on the horizontal plane of the main chord is completed, the handle 55 of the pressing device 5 is screwed, the stud 53 is moved in the connecting cylinder 52, the pressing head 54 is lifted under the driving of the stud 53, so that the pressing head 54 no longer presses the base body device 3. The bolt on the fixed plate 22 is unscrewed, so that the base body device 3 is no longer fixed. The base body device 3 is turned over by 90° to the left, so that the vertical plane of the upper base body 31 faces upward and becomes a horizontal plane. The base body device 3 drives the main chord to turn over, so that the vertical plane of the main chord turns over and becomes a horizontal plane. The bolt is screwed into the fixing hole 221 of the fixed plate 22, and the pressing head 54 of the pressing device 5 is pressed on the base body device 3, so as to fix the base body device 3 again.

[0061] The drill boring device 1 is started, the drill bit 13 enters the base device 3 through the opening 331 on the horizontal surface of the upper base 31, the drill boring position on the horizontal surface of the main chord is bored, and the main chord is bored on both sides.

[0062] After the drill boring of one end of the main chord is completed, the bolt of the fixing plate 22, the pressing head 54 of the pressing device 5, the bolt of the locking hole, and the pressing block 45 of the pressing device 4 are loosened, the main chord is taken down, the other end of the main chord is installed and bored in the above manner, and the drill boring work of the two ends of the main chord is realized.

[0063] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

Claims

1. A vertical boring machine for processing the main chord of a tower crane standard section, comprising a boring device mounting device, a base device, and a tightening device, characterized in that: The drilling and boring device includes a fixed column, a transmission box, a drill bit, a motor, and a workbench; the fixed column is vertically arranged; the transmission box is vertically movably arranged on the front side of the fixed column, and the transmission box can move up and down on the front side of the fixed column; the drill bit is vertically arranged, one end of which is transmission-connected to the transmission box, and the other end extends downward from the bottom surface of the transmission box; the motor is vertically arranged on the top surface of the transmission box, and its output rod extends downward into the interior of the transmission box and is transmission-connected to the transmission box; the workbench is vertically arranged below the drill bit; the mounting device is horizontally arranged on the top surface of the workbench; the base device is arranged on the workbench, the interior of which is hollow, and the top and right side surfaces are open; the tightening device is arranged in the base device.

2. A vertical boring machine for processing a tower crane standard section main chord according to claim 1, characterized in that: The top surface of the workbench is provided with slots along the left and right directions; the slots are inverted T-shaped structures, and a plurality of slots are provided at intervals in the front and back.

3. A vertical boring machine for processing a tower crane standard section main chord according to claim 2, characterized in that: The mounting device includes a base plate, a fixing plate, a positioning plate, and a horizontal plate; the base plate is an L-shaped plate structure, the bottom surface of its horizontal plane is arranged on the top surface of the workbench, the vertical plane is located on the rear side of the horizontal edge, and fixing grooves are provided at the left and right ends of the horizontal plane; multiple fixing grooves are provided at intervals on the left and right; the positioning plate is provided horizontally on the front side of the vertical face of the base plate; the fixing plate is provided vertically on the front side of the horizontal edge of the base plate, and fixing holes are provided on its upper part along the front-to-back direction; the horizontal plate is provided horizontally on the top surface of the horizontal plane of the base plate, and multiple fixing grooves are provided at intervals on the left and right.

4. The vertical boring machine for processing the main chord of a tower crane standard section according to claim 1, characterized in that: The base device includes an upper base and a lower base; the upper base and the lower base are L-shaped structures, and the upper base and the lower base are spliced ​​together to form a U-shaped structure with the horizontal plane of the upper base on top; the opening is opened on the horizontal plane and vertical plane of the upper base.

5. The vertical boring machine for processing the main chord of a tower crane standard section according to claim 4, characterized in that: It also includes a first positioning block and a second positioning block; the first positioning block is arranged horizontally on the left and right, and there are two first positioning blocks, which are respectively arranged on the left and right sides of the bottom of the horizontal plane of the upper base; the second positioning block is arranged horizontally on the left and right, and there are two second positioning blocks, which are respectively arranged on the left and right sides of the side surface in front of the vertical face of the upper base.

6. A vertical boring machine for processing a tower crane standard section main chord according to claim 4, characterized in that: It also includes a limiting plate; the limiting plate is obliquely arranged at the right end of the base device.

7. A vertical boring machine for processing a tower crane standard section main chord according to claim 4, characterized in that: The tightening device includes a fixing part, a connecting part, a screw, a push block, and a push block; the connecting part is a cylindrical structure with a through threaded hole in the middle; the fixing part is a right-angled trapezoidal structure, and is provided with two, the right-angle waists of the two fixing parts are connected to the two side walls of the connecting part, and the oblique waists of the two fixing parts are fixedly connected to the rear side of the vertical surface and the top surface of the horizontal surface of the lower base respectively; the screw is threadedly connected to the threaded hole of the connecting part; the push block is sleeved on the upper end of the screw; the push block is vertically connected to the top surface of the push block.

8. The vertical boring machine for processing the main chord of a tower crane standard section according to claim 7, characterized in that: The vertical surface and the horizontal surface of the lower base body are provided with channels for the screw to move at positions corresponding to the bottom of the screw.

9. The vertical boring machine for processing the main chord of a tower crane standard section according to claim 2, characterized in that: It also includes a clamping device; the clamping device includes a support, a connecting tube, a stud, a pressure head, and a handle; the support is an L-shaped structure, the bottom of its vertical surface is movably connected to the slot of the workbench, and the horizontal surface extends to the top surface of the base device; the connecting tube is vertically arranged on the side of the horizontal surface of the support facing the base device, and a threaded hole is vertically opened in the middle; the stud is vertically arranged and threadedly connected to the connecting tube; the pressure head is horizontally arranged, and its top surface is fixedly connected to the bottom surface of the stud; the handle is fixedly connected to the top surface of the stud.

10. The vertical boring machine for processing the main chord of a tower crane standard section according to claim 1, characterized in that: It also includes a supporting device; the supporting device includes a bracket and supporting rollers; the bracket is horizontally arranged on the left side of the workbench; the supporting rollers are arranged on the top surface of the bracket, and multiple supporting rollers are arranged at intervals on the left and right sides.

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