A hole processing device to ensure the accuracy of the hole system of the lower support of the tower crane

Abstract

The invention discloses a hole processing device for ensuring the hole accuracy of a slewing lower support of a tower crane, comprising a placing platform, a clamping mechanism, a drilling mechanism, a rotating mechanism and a lifting mechanism, wherein a clamping mechanism capable of adjusting a position is arranged on the placing platform, and the slewing lower support is installed on the placing platform through the clamping mechanism, and a rotating mechanism and a lifting mechanism are arranged on the placing platform, and the rotation and lifting of the slewing lower support on the placing platform are realized through the rotating mechanism and the lifting mechanism, and the lifting mechanism and the rotating mechanism are linked, and the slewing lower support is lifted and lowered at the same time when it is rotating, so that the slewing lower support can be quickly clamped, and the hole processing accuracy of the slewing lower support can be ensured, and the equipment modification cost is relatively low.

Description

Technical Field

[0001] The invention relates to the field of tower crane processing equipment, and in particular to a hole system processing equipment for ensuring the accuracy of the hole system of a rotating lower support of a tower crane. Background Art

[0002] The slewing lower support of the tower crane serves as a connecting piece connected to the standard section, that is, the slewing lower support needs to be installed on the topmost standard section, that is, when installing, the slewing lower support is put on the tenon on the top of the standard section, and then the through pin is inserted into the pin hole to install the standard section and the slewing lower support, so as to achieve the installation between the two; since a plurality of holes (that is, a hole system) are provided on the slewing lower support, they must correspond to the pin holes on the tenon of the standard section, so the position accuracy requirements between the hole systems on the lower support are relatively high, and it is necessary to ensure that the hole systems of the slewing lower support and the tenon on the standard section are coaxial, which is convenient for subsequent installation; the current hole system processing on the slewing lower support is mainly carried out by drilling machine, that is, to install the slewing lower support on On the six-axis clamping table, the hole system on the rotary lower support is processed by rotation and translation of the clamping table. At the same time, there is a height difference in the hole system on the rotary lower support, so the drill needs to be raised and lowered to adjust the height of the drill. Therefore, when processing, the lower support and the drill need to be moved, which will affect the accuracy of the processing of the hole system of the rotary lower support during movement. Now, multiple hole systems on the rotary lower support are processed simultaneously by multiple drills, which can ensure the accuracy of the hole system of the rotary lower support, but the manufacturing cost of the processing equipment increases accordingly. At the same time, when changing the size of the rotary lower support, the positions of multiple drills need to be adjusted, which increases the labor intensity of the staff. Summary of the invention

[0003] In view of the deficiencies of the above-mentioned prior art, the present invention proposes a hole system processing equipment that ensures the accuracy of the hole system of the slewing lower support of the tower crane, which is convenient for quickly clamping the slewing lower support and ensuring the accuracy of the slewing lower support processing hole system. At the same time, the equipment modification cost is relatively low.

[0004] To achieve the above-mentioned purpose, the scheme of the present invention is: a hole processing equipment for ensuring the hole accuracy of the slewing lower support of a tower crane, comprising a placing platform, a clamping mechanism, a drilling mechanism, a rotating mechanism and a lifting mechanism, wherein a clamping mechanism with adjustable position is arranged on the placing platform, and the slewing lower support is installed on the placing platform through the clamping mechanism, and a rotating mechanism and a lifting mechanism are arranged on the placing platform, and the rotation and lifting of the slewing lower support on the placing platform are realized through the rotating mechanism and the lifting mechanism, and the lifting mechanism and the rotating mechanism are linked, and the slewing lower support is lifted and lowered at the same time when it rotates; a drilling mechanism is arranged on one side of the placing platform, The drilling mechanism includes a moving platform, a drilling assembly and a drilling adjustment assembly. The moving platform is arranged on one side of the placement platform and the moving platform moves closer to / away from the placement platform. Two sets of drilling assemblies arranged side by side are arranged on the top of the moving platform. The spacing between the two sets of drilling assemblies is adjusted by the drilling adjustment assembly. In this way, the spacing is adjusted according to the size of the rotary lower support. Drilling two holes at the same time can avoid the movement of the rotary lower support, which improves the processing efficiency and also ensures the accuracy of the hole system. A clamping plate is arranged on the placement platform, and a clamping mechanism is arranged on the clamping plate. A lifting mechanism and a rotating mechanism are arranged between the clamping plate and the placement platform. The rotating mechanism realizes the lifting and rotation of the rotary lower support; the rotating mechanism includes a rotating disk and a stepper motor. A rotatable rotating disk is installed on the top surface of the placement platform through a bearing, and a stepper motor is arranged at the bottom of the rotating disk. The rotating disk is driven to rotate by the stepper motor. A clamping disk is arranged above the rotating disk, and a lifting mechanism is arranged between the clamping disk and the rotating disk. The lifting mechanism includes a lifting track, a guide rod and a rolling assembly, wherein a circular lifting track is fixed on the placement platform, and the lifting track is two and the two lifting tracks are nested with each other. Two downwardly concave arc grooves are arranged on the top surface of each lifting track. The lifting tracks on the same lifting track are The arc grooves are arranged relative to each other, and the arc grooves on the two lifting rails are staggered by 90°. A plurality of guide rods passing through the rotating disk are fixed at the bottom of the clamping disk, and a plurality of rolling components are arranged at the bottom of the clamping disk. The rolling components are in contact with the top surface of the lifting rail and roll on the lifting rail. The lifting and lowering of the clamping disk is realized by the rolling of the rolling components, so that the lower support can be lifted and lowered when it rotates; four positioning grooves are arranged on the top surface of the lifting rail and the four positioning grooves are distributed in a circular array on the top surface of the lifting rail, and two positioning grooves are arranged in the arc grooves. The angle and height of the lower support are realized by the positioning grooves, so that the accuracy of the hole system is ensured.

[0005] Preferably, the clamping mechanism includes a clamping block, a pressing assembly, and a clamping adjustment assembly, wherein four clamping blocks are arranged on the clamping disk and the four clamping blocks are distributed in a rectangular array, a sliding groove is opened on the clamping disk and the clamping blocks are embedded in the sliding groove, and four sliding seats are distributed on the clamping disk in a ring array, and the clamping blocks slide in the sliding grooves, and multiple clamping blocks are opened with right-angle grooves facing the center of the clamping disk, and the bottom of the swivel lower support is positioned by the right-angle grooves, and a clamping adjustment assembly is arranged between the clamping block and the clamping disk, and the clamping adjustment assembly includes an adjusting hydraulic cylinder, a linkage frame and a connecting rod, wherein a linkage frame is arranged at the bottom of the clamping disk, four connecting rods are hinged on the linkage frame, and the clamping blocks corresponding to the connecting rods are connected, and an adjusting hydraulic cylinder is arranged on the clamping disk and the linkage frame, and the movement of the clamping block is completed by adjusting the extension and retraction of the hydraulic cylinder, and a pressing assembly is arranged on the placement platform, and the pressing of the swivel lower support is achieved by the pressing assembly.

[0006] Preferably, the pressing component includes a column, a pressing rod and a pressing hydraulic cylinder, wherein a plurality of columns are arranged on the placement platform and the plurality of columns are distributed on both sides of the return lower support, a pressing rod is hinged on the column, a pressing hydraulic cylinder is hingedly installed on the end of the pressing rod away from the column and the top of the column, the top pressing of the rotating lower support is achieved by the extension and retraction of the pressing hydraulic cylinder, and the plurality of columns on the same side are connected by reinforcing ribs.

[0007] Preferably, a translation assembly is arranged between the two groups of drilling assemblies and the mobile platform, and the translation of the drilling assembly is realized by the translation assembly. The drilling adjustment assembly includes a drilling adjustment hydraulic cylinder and an adjusting rod. A vertically arranged drilling adjustment hydraulic cylinder is arranged on the mobile platform, and a hinge seat is fixed on the top of the piston rod of the drilling adjustment hydraulic cylinder, and two adjusting rods are hinged on the hinge, and the adjusting rod is hinged with the translation assembly; the drilling assembly is a chuck driven by a motor, and the drill bit is clamped by the chuck.

[0008] Compared with the prior art, the advantages of the present invention are: it is easy to realize the rapid clamping of the swivel lower support, while ensuring the accuracy of the processing hole system of the swivel lower support, and the equipment modification cost is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a top view of the present invention.

[0010] Figure 2 It is a cross-sectional view of the present invention.

[0011] Figure 3 It is a schematic diagram of the lifting track of the present invention.

[0012] Figure 4 It is a schematic diagram of the drilling mechanism of the present invention.

[0013] Figure 5It is a front view and a left view of the rotary lower support of the present invention.

[0014] Among them, 1. Placing platform, 1.1. Clamping disk, 2. Clamping mechanism, 2.1. Clamping block, 2.2. Sliding groove, 2.3. Right-angle groove, 2.4. Pressing assembly, 2.5. Column, 2.6. Pressing rod, 2.7. Pressing hydraulic cylinder, 2.8. Clamping adjustment assembly, 2.9. Adjusting hydraulic cylinder, 2.10. Linkage frame, 2.11. Connecting rod, 3. Drilling mechanism, 3.1. Moving platform, 3.2. Drilling assembly, 3.3. Drilling adjustment assembly, 3.4. Translation assembly, 3.5. Drilling adjustment hydraulic cylinder, 3.6. Articulated seat, 3.7. Adjusting rod, 4. Rotating mechanism, 4.1. Rotating disk, 4.2. Stepping motor, 5. Lifting mechanism, 5.1. Lifting track, 5.2. Arc groove, 5.3. Guide rod, 5.4. Rolling assembly, 5.5. Positioning groove. DETAILED DESCRIPTION

[0015] The present invention will now be further described with reference to the accompanying drawings.

[0016] like Figure 1-5As shown, a hole processing equipment for ensuring the hole accuracy of the slewing lower support of a tower crane comprises a placing platform 1, a clamping mechanism 2, a drilling mechanism 3, a rotating mechanism 4 and a lifting mechanism 5, wherein a clamping mechanism 2 with adjustable position is arranged on the placing platform 1 (the outer periphery of the placing platform 1 is fixed with a column 2.5 supported on the ground by bolts), the slewing lower support is installed on the placing platform 1 for processing by the clamping mechanism 2, the placing platform 1 is provided with a rotating mechanism 4 and a lifting mechanism 5, the rotation and lifting of the slewing lower support on the placing platform 1 are realized by the rotating mechanism 4 and the lifting mechanism 5, the lifting mechanism 5 is linked with the rotating mechanism 4, and the slewing lower support is lifted and lowered at the same time when it is rotating; a hole is formed on the ground on the right side of the placing platform 1 through a hole 2, a hole is formed on the placing platform 1, and a hole is formed on the placing platform 1 through a hole 2, ... A drilling mechanism 3 is provided in a bolt-fastened manner, and the drilling mechanism 3 includes a mobile platform 3.1, a drilling assembly 3.2 and a drilling adjustment assembly 3.3. The mobile platform 3.1 is provided on the ground on the right side of the placement platform 1 (the mobile platform 3.1 includes a guide rail, a sliding seat and a push-up hydraulic cylinder. The guide rail is multi-track and the guide rail is fixed to the ground by bolts. A sliding seat moving on the guide rail is clamped on the guide rail. A push-up hydraulic cylinder is fixed between the sliding seat and the guide rail by bolt-fastening. The sliding seat is moved on the guide rail by the extension and retraction of the push-up hydraulic cylinder. A flat plate is fixed on the top of the plurality of sliding seats by bolt-fastening). The mobile platform 3.1 moves closer to / away from the placement platform 1, and the mobile platform 3.1 tops Two sets of drilling components 3.2 arranged side by side are arranged at the bottom (the drilling components 3.2 are arranged on the flat plate), and the spacing between the two sets of drilling components 3.2 is adjusted by the drilling adjustment component 3.3, so that the spacing is adjusted according to the size of the rotary lower support (the spacing between the two holes at the foot of the lower support), and drilling two holes at the same time can avoid the movement of the rotary lower support, which improves the processing efficiency and also ensures the accuracy of the hole system (no workpiece translation is required, so the spacing between the two holes is guaranteed); a clamping disk 1.1 is arranged on the placement platform 1, and a clamping mechanism 2 is arranged on the clamping disk 1.1. A lifting mechanism 5 and a rotating mechanism 4 are arranged between the clamping disk 1.1 and the placement platform 1, and the lifting and rotation of the rotary lower support are realized by the lifting mechanism 5 and the rotating mechanism 4; the rotating mechanism 4 includes a rotating Turntable 4.1 and stepper motor 4.2, a rotatable turntable is installed on the top surface of the placement platform 1 through a bearing, and a stepper motor 4.2 is fixed to the bottom of the turntable by bolts (the housing of the stepper motor 4.2 is fixed to the bottom of the placement platform 1 by bolts), and the rotating disk 4.1 is driven to rotate by the stepper motor 4.2 (the rotating disk 4.1 is controlled to rotate 90 degrees each time by the stepper motor 4.2, so that the lower support can switch the angle, and the drilling mechanism 3 is used to drill the foot of the lower support), and a clamping disk 1.1 is arranged above the rotating disk 4.1, and a lifting mechanism 5 is arranged between the clamping disk 1.1 and the rotating disk 4.1, and the lifting mechanism 5 includes a lifting track 5.1, a guide rod 5.3 and a rolling assembly 5.4, wherein a circular lifting track 5.1 is fixed on the placement platform 1 by bolt fastening, the lifting track 5.1 is two and the two lifting tracks 5.1 are nested with each other, two arc grooves 5.2 recessed downward are opened on the top surface of each lifting track 5.1, the arc grooves 5.2 on the same lifting track 5.1 are arranged oppositely, and the arc grooves 5.2 on the two lifting tracks 5.1 are staggered by 90 degrees, a plurality of guide rods 5.3 passing through the rotating disk 4.1 are fixed on the bottom of the clamping disk 1.1 by welding, and a plurality of rolling bearings are fixed on the bottom of the clamping disk 1.1 by bolt fastening Component 5.4 (rolling component 5.4 is a roller), rolling component 5.4 contacts the top surface of lifting track 5.1 and rolling component 5.4 rolls on lifting track 5.1, and the lifting and lowering of clamping plate 1.1 is realized by rolling of rolling component 5.4 (when the roller rolls to arc groove 5.2, clamping plate 1.1 descends, and guide rod 5.3 is arranged on clamping plate 1.1, so that guide rod 5.3 can make clamping plate 1.1 rotate together with rotating plate 4.1), so that the lifting and lowering of the rotating support is realized when the rotating lower support rotates; four positioning grooves 5.4 are arranged on the top surface of lifting track 5.1 .5 and four positioning grooves 5.5 are distributed in a circular array on the top surface of the lifting track 5.1 (the positioning grooves 5.5 are V-shaped grooves), and two positioning grooves 5.5 are opened in the arc groove 5.2. The angle and height of the rotary lower support are realized by the positioning grooves 5.5, so as to ensure the accuracy of the hole system. A pressing component 2.4 is fixed on the placement platform 1 by bolt fastening. The pressing component 2.4 is used to press the rotary lower support. When the pressing component 2.4 descends, the clamping plate 1.1 is also pressed, so that the roller is pressed on the top surface of the lifting track 5.1; that is, when working, the rotary lower support is pressed. The swivel lower support is clamped on the clamping plate 1.1, and the rotation of the rotating plate 4.1 drives the clamping plate 1.1 to rotate. At the same time, when the clamping plate 1.1 rotates, the clamping plate 1.1 is lifted and lowered by the lifting mechanism 5. Since the heights of the holes on each surface of the swivel lower support are inconsistent, the swivel lower support needs to rotate and lift synchronously when processing different surfaces, and then drill holes through the drilling mechanism 3. In this way, there is no need for the swivel lower support to move, which ensures the hole system accuracy of the swivel lower support, and completes the rotation and lifting actions at one time. In this way, the switching speed is relatively fast, which can improve the processing efficiency. .

[0017] The clamping mechanism 2 includes a clamping block 2.1, a pressing assembly 2.4, and a clamping adjustment assembly 2.8, wherein four clamping blocks 2.1 are arranged on the clamping plate 1.1 and the four clamping blocks 2.1 are distributed in a rectangular array, a sliding groove 2.2 is opened on the clamping plate 1.1 (the sliding groove 2.2 extends from the periphery to the center) and the clamping block 2.1 is embedded in the sliding groove 2.2, and four sliding seats are distributed on the clamping plate 1.1 in a circular array, and the clamping block 2.1 is in the sliding groove 2.2. .2 (the clamping block 2.1 is clamped in the sliding groove 2.2, and the clamping block 2.1 moves in the sliding groove 2.2. The position of the clamping block 2.1 is adjusted according to the size of the rotary lower support, so that the clamping block 2.1 clamps the rotary lower support). A right-angle groove 2.3 is opened on the plurality of clamping blocks 2.1 toward the center of the clamping plate 1.1, and the bottom edge of the rotary lower support is positioned through the right-angle groove 2.3 (that is, through the four clamping blocks 2. 1 is used to clamp the edge of the slewing lower support), a clamping adjustment component 2.8 is arranged between the clamping block 2.1 and the clamping plate 1.1, and the clamping adjustment component 2.8 includes an adjusting hydraulic cylinder 2.9, a linkage frame 2.10 and a connecting rod 2.11, wherein a rectangular linkage frame 2.10 is arranged at the bottom of the clamping plate 1.1, four connecting rods 2.11 are hinged on the linkage frame 2.10, and the clamping blocks 2.1 corresponding to the connecting rods 2.11 are hinged, and an adjusting hydraulic cylinder 2.9 is fixed on the clamping plate 1.1 and the linkage frame 2.10 by welding, and the lifting and lowering of the linkage frame 2.10 is realized by adjusting the extension and retraction of the hydraulic cylinder 2.9. When the linkage frame 2.10 is lifted or lowered, the connecting rod 2.11 pulls the clamping block 2.1 to translate in the sliding groove 2.2, thereby realizing the adjustment of the spacing between the clamping blocks 2.1, and thus realizing the clamping of slewing lower supports of different sizes.

[0018] The pressing assembly 2.4 includes a column 2.5, a pressing rod 2.6 and a pressing hydraulic cylinder 2.7, wherein a plurality of columns 2.5 are fixed on the placement platform 1 by bolt fastening, and the plurality of columns 2.5 are distributed on the front and rear sides of the return lower support, a pressing rod 2.6 is hinged on each column 2.5 (the middle section of the pressing rod 2.6 is hinged on the column 2.5, and the pressing rod 2.6 swings), and a pressing hydraulic cylinder 2.7 is hingedly installed at one end of the pressing rod 2.6 away from the column 2.5 and the top of the column 2.5, and the top of the rotating lower support is pressed by the extension and retraction of the pressing hydraulic cylinder 2.7, and the plurality of columns 2.5 on the same side are connected by reinforcing ribs to ensure the strength of the column 2.5.

[0019] A translation assembly 3.4 is fixed between the two sets of drilling assemblies 3.2 and the mobile platform 3.1 by bolt fastening (the translation assembly 3.4 includes a track and a mobile seat, a longitudinally arranged track is fixed on the top surface of the mobile platform 3.1 by bolt fastening, a mobile seat moving on the track is clamped on the track, and the drilling assembly 3.2 is fixed on the mobile seat by bolts), the translation of the drilling assembly 3.2 is achieved by the translation assembly 3.4, and the drilling adjustment assembly 3.3 includes a drilling adjustment hydraulic cylinder 3.5 and an adjustment rod 3.7, which are fastened on the mobile platform 3.1 by bolts. A vertically arranged drilling adjustment hydraulic cylinder 3.5 is fixed thereon, and a hinge seat 3.6 is fixed to the top of the piston rod of the drilling adjustment hydraulic cylinder 3.5 by bolt fastening, two adjustment rods 3.7 are hinged on the hinge, and the adjustment rods 3.7 are hinged to the translation assembly 3.4 (the moving seat on the translation assembly 3.4), and the position of the drilling assembly 3.2 is adjusted by the extension and retraction of the drilling adjustment hydraulic cylinder 3.5, so as to adjust the spacing between the drilling assemblies 3.2; the drilling assembly 3.2 is a chuck driven by a motor, and the drill bit is clamped by the chuck, so as to realize the rotation of the lower support for drilling.

Claims

1. A hole processing device for ensuring the hole accuracy of the slewing lower support of a tower crane, comprising a placing platform, a clamping mechanism, a drilling mechanism, a rotating mechanism and a lifting mechanism, wherein a clamping mechanism capable of adjusting the position is arranged on the placing platform, and the slewing lower support is installed on the placing platform through the clamping mechanism, and a rotating mechanism and a lifting mechanism are arranged on the placing platform, and the rotation and lifting of the slewing lower support on the placing platform are realized through the rotating mechanism and the lifting mechanism, and the lifting mechanism and the rotating mechanism are linked, and the slewing lower support is lifted and lowered at the same time when rotating; it is characterized in that A drilling mechanism is arranged on one side of the placing platform, and the drilling mechanism includes a moving platform, a drilling assembly and a drilling adjustment assembly. The moving platform is arranged on one side of the placing platform and the moving platform moves closer to / away from the placing platform. Two sets of drilling assemblies arranged side by side are arranged on the top of the moving platform, and the spacing between the two sets of drilling assemblies is adjusted by the drilling adjustment assembly, so that the spacing is adjusted according to the size of the rotating lower support, and drilling two holes at the same time can avoid the movement of the rotating lower support, which improves the processing efficiency and also ensures the accuracy of the hole system; a clamping disk is arranged on the placing platform, and the clamping mechanism is arranged on the clamping disk. A lifting mechanism and a rotating mechanism are arranged between the clamping disk and the placing platform, and the lifting and rotation of the rotating lower support are realized by the lifting mechanism and the rotating mechanism; the rotating mechanism includes a rotating disk and a stepping motor. A rotatable turntable is installed on the top surface of the placing platform through a bearing, and a stepping motor is arranged at the bottom of the turntable. The rotating disk is driven to rotate by the stepping motor, and a mounting is arranged above the rotating disk. The chuck has two guide rods which are arranged opposite to each other, and the two guide rods are arranged on the two guide rods, and the two guide rods are arranged on the two guide rods, and the two guide rods are arranged on the two guide rods, and the two guide rods are arranged on the two guide rods, and the two guide rods are arranged on the two guide rods, and the two guide rods are arranged on the two guide rods.

2. The hole processing equipment for ensuring the hole accuracy of the lower support of the tower crane according to claim 1 is characterized in that: The clamping mechanism includes a clamping block, a pressing assembly, and a clamping adjustment assembly, wherein four clamping blocks are arranged on the clamping disk and the four clamping blocks are distributed in a rectangular array, a sliding groove is opened on the clamping disk and the clamping blocks are embedded in the sliding groove, and four sliding seats are distributed on the clamping disk in a circular array, and the clamping blocks slide in the sliding grooves, and right-angle grooves facing the center of the clamping disk are opened on multiple clamping blocks, and the bottom of the swivel lower support is positioned through the right-angle grooves, and a clamping adjustment assembly is arranged between the clamping block and the clamping disk, and the clamping adjustment assembly includes an adjusting hydraulic cylinder, a linkage frame and a connecting rod, wherein a linkage frame is arranged at the bottom of the clamping disk, four connecting rods are hinged on the linkage frame, and the clamping blocks corresponding to the connecting rods are connected, and an adjusting hydraulic cylinder is arranged on the grabbing clamping disk and the linkage frame, and the movement of the clamping block is completed by adjusting the extension and retraction of the hydraulic cylinder, and a pressing assembly is arranged on the placing platform, and the pressing of the swivel lower support is achieved through the pressing assembly.

3. The hole processing equipment for ensuring the hole accuracy of the lower support of the tower crane according to claim 2 is characterized in that: The pressing component includes a column, a pressing rod and a pressing hydraulic cylinder, wherein a plurality of columns are arranged on the placement platform and the plurality of columns are distributed on both sides of the return lower support, a pressing rod is hinged on the column, a pressing hydraulic cylinder is hingedly installed on the end of the pressing rod away from the column and the top of the column, the top pressing of the rotating lower support is achieved by the extension and retraction of the pressing hydraulic cylinder, and the plurality of columns on the same side are connected by reinforcing ribs.

4. The hole processing equipment for ensuring the hole accuracy of the lower support of the tower crane according to claim 3 is characterized in that: A translation assembly is arranged between the two groups of drilling assemblies and the mobile platform, and the translation of the drilling assembly is realized by the translation assembly. The drilling adjustment assembly includes a drilling adjustment hydraulic cylinder and an adjusting rod. A vertically arranged drilling adjustment hydraulic cylinder is arranged on the mobile platform, and a hinge seat is fixed on the top of the piston rod of the drilling adjustment hydraulic cylinder, and two adjusting rods are hinged on the hinge, and the adjusting rod is hinged with the translation assembly; the drilling assembly is a chuck driven by a motor, and the drill bit is clamped by the chuck.

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