Drilling device and drilling method

Abstract

The invention relates to the technical field of machining, in particular to a drilling device and a drilling method. The drilling device comprises a base, an angle adjusting assembly, a lifting adjusting assembly, a clamping assembly and a drilling assembly. The base is rotatably arranged; the angle adjusting assembly is arranged on one side of the base, is connected with the base and is used for driving the base to rotate to a required angle; the lifting adjusting assembly is arranged on the base and arranged in a lifting mode relative to the base. The clamping assembly is arranged on the lifting adjusting assembly and comprises a clamping cavity used for clamping a workpiece in the circumferential direction. The drilling assembly is arranged on the side, away from the angle adjusting assembly, of the base and comprises a drill bit component and a feeding distance adjusting component. The drill bit component is arranged towards the workpiece; and the feeding distance adjusting component is connected with the drill bit component. According to the drilling method, high-precision clamping positioning and high-precision drilling of the workpiece are completed through the drilling device.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, and in particular to a drilling device and a drilling method. Background Art

[0002] As a supporting structure of the spacecraft optical system, the whole machine flange not only needs to bear the structural support function, but also must meet the performance indicators such as lightweight, high rigidity and low thermal expansion coefficient in order to ensure the stable operation of the optical system in the extreme aerospace environment. Structurally, the whole machine flange includes a multi-layer flange structure. Considering that the whole machine flange needs to bear the structural support function, it is necessary to drill holes in the flange plate of each layer of the flange structure in the circumferential direction to form multiple mounting holes. The whole machine flange can achieve the structural support function after being installed with other components with the help of the mounting holes.

[0003] However, with the development trend of lightweight spacecraft optical systems, the whole machine flange tends to be a thin-walled structure, which greatly increases the difficulty of clamping and positioning the whole machine flange during drilling operations. In addition, in terms of materials, the whole machine flange is made of aluminum-based silicon carbide composite materials with high rigidity. At the same time, in order to maintain the stability and accuracy of the optical system, the whole machine flange needs to have high modulus characteristics, which greatly increases the requirements for the silicon carbide reinforcement ratio, and then leads to a significant increase in the rigidity of the whole machine flange material, which increases the difficulty of drilling processing.

[0004] In the prior art, there are usually two methods for drilling holes in complex structural parts. The first is to drill holes first and then weld and assemble them. This method has extremely high requirements on welding quality and precision, and it is difficult to meet production needs. The second is to assemble first and then drill holes. However, the flange structure of the whole machine is complex, the flange plate has many layers and many holes that need to be processed. Before drilling, the flange of the whole machine needs to be clamped and positioned with high precision. The use of conventional drilling equipment has the problems of low clamping and positioning accuracy and insufficient drilling accuracy, which makes it difficult to meet the drilling processing requirements.

[0005] In summary, it is necessary to develop a drilling device and a drilling method suitable for high-precision drilling of complex structural parts, so as to solve the problems of low clamping positioning accuracy and insufficient drilling accuracy existing in the prior art. Summary of the invention

[0006] The purpose of the present invention is to provide a drilling device and a drilling method, and the specific technical scheme is as follows:

[0007] In a first aspect, the present invention provides a drilling device, comprising a base, an angle adjustment assembly, a lifting and lowering adjustment assembly, a clamping assembly and a drilling assembly; the base is rotatable; the angle adjustment assembly is arranged on one side of the base and is connected to the base, and is used to drive the base to rotate to a desired angle; the lifting and lowering adjustment assembly is arranged on the base and is lifted and lowered relative to the base; the clamping assembly is arranged on the lifting and lowering adjustment assembly, and includes a clamping cavity for circumferentially clamping a workpiece; the drilling assembly is arranged on a side of the base away from the angle adjustment assembly, and includes a drill bit component and a feed distance adjustment component; the drill bit component is arranged toward the workpiece; and the feed distance adjustment component is connected to the drill bit component.

[0008] Optionally, the clamping assembly includes a mounting plate, a center distance adjusting clamping member and an edge distance adjusting clamping member; the mounting plate is arranged on the lifting and lowering adjustment assembly; the center distance adjusting clamping member is arranged on the central area of ​​the mounting plate, and the edge distance adjusting clamping member is arranged on the edge area of ​​the mounting plate, and is arranged corresponding to the center distance adjusting clamping member, and encloses a clamping cavity.

[0009] Optionally, the center distance adjusting clamping member comprises a center block and at least three groups of center distance adjusting clamping pieces arranged at equal intervals on the periphery of the center block; each group of center distance adjusting clamping pieces comprises a first clamping block and a first electric telescopic rod; one end of the first electric telescopic rod is connected to the center block, and the other end is connected to the first clamping block;

[0010] The edge distance adjustment clamping member comprises at least three groups of edge distance adjustment clamping units which are arranged at equal intervals on the edge area of ​​the mounting plate; each group of the edge distance adjustment clamping units comprises a first vertical plate, a second clamping block and a second electric telescopic rod; the first vertical plate is arranged on the edge of the mounting plate; one end of the second electric telescopic rod is connected to the first vertical plate, and the other end is connected to the second clamping block;

[0011] The second electric telescopic rod is coaxially arranged with the first electric telescopic rod; the second clamping block is arranged opposite to the first clamping block, and a clamping cavity is formed between the two;

[0012] A first guide limiting groove for sliding of the second clamping block and the first clamping block is arranged on the mounting plate.

[0013] Optionally, the clamping assembly also includes a first pressure sensor and a second pressure sensor; the number of the first pressure sensors is the same as the number of the first electric telescopic rods; the first pressure sensors are arranged one-to-one on the end where the first electric telescopic rod is connected to the first clamping block; the number of the second pressure sensors is the same as the number of the second electric telescopic rods; the second pressure sensors are arranged one-to-one on the end where the second electric telescopic rod is connected to the first vertical plate.

[0014] Optionally, the feed distance adjustment component includes a mounting box, a first driving member, a threaded rod and a connecting block; the mounting box is arranged on a side of the base away from the angle adjustment assembly; the first driving member and the threaded rod are both arranged in the mounting box, and the output end of the first driving member is connected to the threaded rod; the connecting block is arranged on the threaded rod, and a threaded hole adapted to the thread on the surface of the threaded rod is arranged on the connecting block;

[0015] The feeding distance adjusting component further includes a first distance sensor; the first distance sensor is arranged on the connecting block;

[0016] The drill bit component comprises a guide component, a stroke buffer adjustment component, a second driving component and a drill bit; a second guide limit slot is provided on the installation box, one end of the guide component extends into the second guide limit slot and is connected to the connection block, while the other end extends out of the second guide limit slot; the stroke buffer adjustment component is arranged on a side of the guide component close to the workpiece; the second driving component is arranged on the stroke buffer adjustment component, and an output end thereof is connected to the drill bit;

[0017] The stroke buffer adjustment member comprises a mounting rod, a sleeve, an elastic member and a traction guide member; the mounting rod has two ends in the length direction, respectively, a first end and a second end, the first end of which is arranged outside the sleeve, and the second end passes through the sleeve and is connected to the second driving member; the elastic member is sleeved on the mounting rod, and one end of the elastic member is respectively connected to the first end of the mounting rod, and the other end is connected to the end of the sleeve close to the first end of the mounting rod; the elastic member is in a compressed state; an open groove is provided on a side of the sleeve close to the guide member, and a connecting seat is provided on the open groove; one end of the connecting seat is connected to the mounting rod, and the other end is hinged to one end of the traction guide member, and the other end of the traction guide member is hinged to the guide member;

[0018] The traction guide member includes a traction rod, a third electric telescopic rod, a slider, a thrust plate and a third pressure sensor; a slide groove is arranged on the guide member; the slider is slidably arranged in the slide groove; the thrust plate is arranged on the guide member and is located between the slider and the sleeve; the third electric telescopic rod is arranged between the slider and the thrust plate, and its two ends are respectively connected to the two; the third pressure sensor is arranged on the thrust plate and connected to the end of the third electric telescopic rod; one end of the traction rod is hinged to the connecting seat, and the other end is hinged to the slider.

[0019] Optionally, the angle adjustment assembly includes a third driving member and a gear; the third driving member is arranged on one side of the base, and an output end thereof is connected to the gear; an annular rack meshing with the gear is arranged on the periphery of the base;

[0020] The lifting and adjusting assembly includes a hydraulic telescopic rod and a telescopic sleeve; the hydraulic telescopic rod is arranged between the base and the mounting plate, and its two ends are respectively connected to the two; the number of the telescopic sleeves is multiple, and they are annularly arranged on the outer periphery of the hydraulic telescopic rod; the two ends of each telescopic sleeve are respectively connected to the base and the mounting plate.

[0021] Optionally, the drilling device also includes a limiting and tightening assembly; the limiting and tightening assembly is arranged on one side of the base and away from the drilling assembly; the limiting and tightening assembly includes a limiting and distance adjusting component and a limiting block; the limiting and distance adjusting component is connected to the limiting block and is used to adjust the limiting block to tighten the workpiece.

[0022] Optionally, the position limiting and tightening assembly further comprises a second vertical plate; the second vertical plate is arranged on one side of the base and is arranged away from the drilling assembly; one end of the position limiting and distance adjusting member is connected to the second vertical plate, and the other end is connected to the position limiting block;

[0023] The position limiting and distance adjusting component includes a fourth electric telescopic rod.

[0024] Optionally, the drilling device further includes a controller; the controller is disposed in the installation box and is connected to the first electric telescopic rod, the second electric telescopic rod, the third electric telescopic rod, the fourth electric telescopic rod, the first distance sensor, the first pressure sensor, the second pressure sensor, the third pressure sensor, the first driving member, the second driving member, the third driving member and the hydraulic telescopic rod;

[0025] An openable and closable protective door is provided on the installation box.

[0026] Optionally, the drilling device further includes a second distance sensor; the second distance sensor is disposed on a side of the mounting box close to the workpiece and is connected to the controller.

[0027] In a second aspect, the present invention provides a drilling method using the drilling device, comprising:

[0028] Step S1, the controller controls the clamping assembly to clamp the workpiece;

[0029] Specifically, the controller controls the operation of the first electric telescopic rod and the second electric telescopic rod, thereby linking the first clamping block and the second clamping block to approach each other to clamp the workpiece; the first pressure sensor collects the pressure signal between the center block and the first clamping block, and the second pressure sensor collects the pressure signal between the first vertical plate and the second clamping block, and transmits them to the controller; after reaching a pressure threshold preset in the controller, the controller controls the telescopic length of the first electric telescopic rod and the second electric telescopic rod under the pressure threshold to link the first clamping block and the second clamping block to clamp the workpiece;

[0030] Step S2, the controller controls the feed distance adjustment component to link with the drill bit component to complete the drilling operation on the workpiece; the controller controls the lifting adjustment component to adjust the workpiece to an initial working height, so as to complete the drilling operation on the workpiece at the initial working height position;

[0031] Specifically, the second distance sensor collects the distance information of the workpiece and transmits it to the controller, and the controller controls the telescopic height of the hydraulic telescopic rod to adjust the workpiece to an initial working height position; wherein, the telescopic sleeve can provide a guide for adjusting the height of the workpiece;

[0032] The controller controls the first driving member to drive the threaded rod to rotate, thereby linking the connecting block to drive the guide member and the drill bit to move toward the workpiece; the first distance sensor collects the distance signal of the connecting block relative to the workpiece in real time and transmits it to the controller; after reaching a distance threshold preset in the controller, the controller controls the first driving member to stop rotating under the distance threshold, and the drill bit is located at the drilling position required by the workpiece; the controller controls the second driving member to drive the drill bit to complete the drilling operation;

[0033] Wherein, according to the height of the required drilling position of the workpiece, the controller presets the pressure threshold of the third pressure sensor, and controls the traction rod to link the drill bit to the drilling height; specifically, in the traction guide, the third pressure sensor collects the pressure signal between the thrust plate and the slider, and transmits it to the controller. After reaching the pressure threshold preset in the controller, the controller controls the telescopic length of the third electric telescopic rod under the pressure threshold to link the traction rod to pull the drill bit to successfully complete the drilling operation; the elastic member in a compressed state is used to provide a buffer stroke for the drill bit to complete the drilling operation, so as to avoid the drill bit from chipping or damage to the workpiece;

[0034] Step S3, the controller controls the angle adjustment assembly to drive the base to drive the workpiece to rotate to a desired angle, so as to complete drilling operations at different angles of the workpiece;

[0035] Specifically, the controller controls the third driving member to link with the gear to sequentially drive the base and the workpiece to rotate to a desired angle, thereby completing the drilling operation at different angles of the workpiece;

[0036] Step S4, the controller controls the lifting and adjusting assembly to adjust the workpiece to the next required working height, so as to complete the drilling operation at the required working height position of the workpiece; the controller controls the position limiting and tightening assembly to complete the position limiting and tightening of the workpiece;

[0037] Specifically, the controller controls the telescopic height of the hydraulic telescopic rod to adjust the workpiece to a required operating height position; the controller controls the fourth electric telescopic rod to link the limit block to tighten the workpiece; and steps S2-S3 are used to complete the drilling operation on the workpiece.

[0038] The application of the technical solution of the present invention has at least the following beneficial effects:

[0039] The drilling device and drilling method provided by the present invention can solve the problems of low clamping positioning accuracy and insufficient drilling accuracy existing in the prior art, and are suitable for high-precision drilling of complex structural parts (such as complete machine flanges). Specifically, when completing the drilling operation at the bottom position of the workpiece, the clamping assembly is used to clamp the workpiece; the feed distance adjustment component is used to link the drill bit component to complete the drilling operation of the workpiece; the angle adjustment component is used to drive the base to drive the workpiece to rotate to the required angle, so as to complete the drilling operation at different angles of the workpiece. When completing the drilling operation at the required height position of the workpiece, it is also necessary to use the lifting and adjusting assembly to adjust the workpiece to the required height, so as to complete the drilling operation at the required height position of the workpiece. Among them, when clamping and positioning a workpiece, the present invention controls the operation of the first electric telescopic rod and the second electric telescopic rod, thereby linking the first clamping block and the second clamping block to approach each other to clamp the workpiece; the first pressure sensor collects the pressure signal between the center block and the first clamping block, and the second pressure sensor collects the pressure signal between the first vertical plate and the second clamping block, and transmits them to the controller. After reaching a pressure threshold preset in the controller, the controller controls the telescopic length of the first electric telescopic rod and the second electric telescopic rod under the pressure threshold to link the first clamping block and the second clamping block to clamp the workpiece, which can improve the clamping and positioning accuracy of the workpiece. During the drilling operation of the present invention, the second distance sensor collects the distance information of the workpiece and transmits it to the controller, and the controller controls the telescopic height of the hydraulic telescopic rod to adjust the workpiece to the initial working height position; the controller controls the first driving member to drive the threaded rod to rotate, and then links the connecting block to drive the guide component and the drill bit to move toward the workpiece; the first distance sensor collects the distance signal of the connecting block relative to the workpiece in real time and transmits it to the controller, and after reaching the distance threshold preset in the controller, the controller controls the first driving member to stop rotating at the distance threshold, and the drill bit is located at the drilling position required for the workpiece, so that the controller controls the second driving member to drive the drill bit to complete the drilling operation with high precision.

[0040] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0042] Figure 1is a structural schematic diagram of a drilling device in an embodiment of the present invention (a workpiece is also shown in the figure);

[0043] Figure 2 is a schematic structural diagram of a clamping assembly in an embodiment of the present invention (the bottom of the workpiece is also shown in the figure);

[0044] Figure 3 is a schematic structural diagram of a drill bit component in an embodiment of the present invention;

[0045] Among them, 1. base, 2. angle adjustment assembly, 2.1. third driving member, 2.2. gear, 3. lifting adjustment assembly, 3.1. hydraulic telescopic rod, 3.2. telescopic sleeve, 4. clamping assembly, 4.1. mounting plate, 4.2. center block, 4.3. first clamping block, 4.4. first electric telescopic rod, 4.5. first vertical plate, 4.6. second clamping block, 4.7. second electric telescopic rod, 4.8. first pressure sensor, 4.9. second pressure sensor, 5. drilling assembly, 5.1. drill bit component, 5.1.1. guide component, 5.1.2. second driving member, 5.1.3. drill bit, 5. 1.4, mounting rod, 5.1.5, sleeve, 5.1.6, elastic member, 5.1.7, traction rod, 5.1.8, third electric telescopic rod, 5.1.9, slider, 5.1.10, thrust plate, 5.1.11, third pressure sensor, 5.2, feed distance adjustment component, 5.2.1, mounting box, 5.2.2, first driving member, 5.2.3, threaded rod, 5.2.4, connecting block, 5.2.5, first distance sensor, 6, limit tightening assembly, 6.1, limit distance adjustment component, 6.2, limit block, 6.3, second vertical plate, 7, controller, 8, second distance sensor, A, whole machine flange. DETAILED DESCRIPTION

[0046] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0047] Example:

[0048] See also Figure 1-Figure 3A drilling device comprises a base 1, an angle adjustment assembly 2, a lifting and adjusting assembly 3, a clamping assembly 4 and a drilling assembly 5; the base 1 is rotatably arranged on a bottom plate; the angle adjustment assembly 2 is arranged on one side of the base 1 and is connected to the base 1, and is used to drive the base 1 to rotate to a desired angle; the lifting and adjusting assembly 3 is arranged on the base 1 and is lifted and lowered relative to the base 1; the clamping assembly 4 is arranged on the lifting and adjusting assembly 3, which comprises a clamping cavity for circumferentially clamping a workpiece (specifically, a complete machine flange A); the drilling assembly 5 is arranged on a side of the base 1 away from the angle adjustment assembly 2, and comprises a drill bit component 5.1 and a feed distance adjusting component 5.2; the drill bit component 5.1 is arranged toward the workpiece; the feed distance adjusting component 5.2 is connected to the drill bit component 5.1.

[0049] The clamping assembly 4 includes a mounting plate 4.1, a center distance-adjusting clamping member and an edge distance-adjusting clamping member; the mounting plate 4.1 is arranged on the lifting and lowering adjustment assembly 3; the center distance-adjusting clamping member is arranged on the central area of ​​the mounting plate 4.1, and the edge distance-adjusting clamping member is arranged on the edge area of ​​the mounting plate 4.1, and is arranged corresponding to the center distance-adjusting clamping member, and encloses a clamping cavity.

[0050] The center distance adjustment clamping member comprises a center block 4.2 and at least three groups of center distance adjustment clamping pieces arranged at equal intervals on the periphery of the center block 4.2; each group of center distance adjustment clamping pieces comprises a first clamping block 4.3 and a first electric telescopic rod 4.4; one end of the first electric telescopic rod 4.4 is connected to the center block 4.2, and the other end is connected to the first clamping block 4.3;

[0051] The edge distance adjustment clamping member comprises at least three groups of edge distance adjustment clamping units arranged at equal intervals on the edge area of ​​the mounting plate 4.1; each group of the edge distance adjustment clamping units comprises a first vertical plate 4.5, a second clamping block 4.6 and a second electric telescopic rod 4.7; the first vertical plate 4.5 is arranged on the edge of the mounting plate 4.1; one end of the second electric telescopic rod 4.7 is connected to the first vertical plate 4.5, and the other end is connected to the second clamping block 4.6;

[0052] The second electric telescopic rod 4.7 is coaxially arranged with the first electric telescopic rod 4.4; the second clamping block 4.6 is arranged opposite to the first clamping block 4.3, and a clamping cavity is formed between the two;

[0053] A first guide limiting groove for sliding of the second clamping block 4.6 and the first clamping block 4.3 is provided on the mounting plate 4.1.

[0054] The clamping assembly 4 also includes a first pressure sensor 4.8 and a second pressure sensor 4.9; the number of the first pressure sensors 4.8 is the same as the number of the first electric telescopic rods 4.4; the first pressure sensors 4.8 are arranged one by one on the end where the first electric telescopic rod 4.4 is connected to the first clamping block 4.3; the number of the second pressure sensors 4.9 is the same as the number of the second electric telescopic rods 4.7; the second pressure sensors 4.9 are arranged one by one on the end where the second electric telescopic rod 4.7 is connected to the first vertical plate 4.5.

[0055] The feeding distance adjusting component 5.2 comprises an installation box 5.2.1, a first driving member (a stepping motor) 5.2.2, a threaded rod 5.2.3 and a connecting block 5.2.4; the installation box 5.2.1 is arranged on a side of the base 1 away from the angle adjustment component 2; the first driving member 5.2.2 and the threaded rod 5.2.3 are both arranged in the installation box 5.2.1, and the output end of the first driving member 5.2.2 is connected to the threaded rod 5.2.3; the connecting block 5.2.4 is arranged on the threaded rod 5.2.3, and a threaded hole adapted to the surface thread of the threaded rod 5.2.3 is arranged on the connecting block 5.2.4;

[0056] The feeding distance adjusting member 5.2 further comprises a first distance sensor 5.2.5; the first distance sensor 5.2.5 is arranged on the connecting block 5.2.4;

[0057] The drill bit component 5.1 includes a guide component 5.1.1, a stroke buffer adjustment component, a second drive component (a motor) 5.1.2 and a drill bit 5.1.3; a second guide limit slot is provided on the installation box 5.2.1, one end of the guide component 5.1.1 extends into the second guide limit slot and is connected to the connecting block 5.2.4, while the other end extends out of the second guide limit slot; wherein the guide component 5.1.1 is a T-shaped plate, and the second guide limit slot is a T-shaped slot adapted to the T-shaped plate to prevent the guide component 5.1.1 from falling out; the stroke buffer adjustment component is arranged on the side of the guide component 5.1.1 close to the workpiece; the second drive component 5.1.2 is arranged on the stroke buffer adjustment component, and its output end is connected to the drill bit 5.1.3;

[0058] The stroke buffer adjustment member includes a mounting rod 5.1.4, a sleeve 5.1.5, an elastic member 5.1.6 (specifically a spring) and a traction guide member; the two ends of the mounting rod 5.1.4 in the length direction are respectively a first end and a second end, the first end of which is arranged outside the sleeve 5.1.5, and the second end passes through the sleeve 5.1.5 and is connected to the second driving member 5.1.2; the elastic member 5.1.6 is sleeved on the mounting rod 5.1.4, and one end of the elastic member is respectively connected to the mounting rod 5.1.4 The first end is connected, and the other end is connected to the end of the sleeve 5.1.5 close to the first end of the mounting rod 5.1.4; the elastic member 5.1.6 is in a compressed state; an open groove is provided on the side of the sleeve 5.1.5 close to the guide member 5.1.1, and a connecting seat is provided on the open groove; one end of the connecting seat is connected to the mounting rod 5.1.4, and the other end is hinged to one end of the traction guide member, and the other end of the traction guide member is hinged to the guide member 5.1.1;

[0059] The traction guide member includes a traction rod 5.1.7, a third electric telescopic rod 5.1.8, a slider 5.1.9, a thrust plate 5.1.10 and a third pressure sensor 5.1.11; a slide groove is arranged on the guide member 5.1.1; the slider 5.1.9 can be slidably arranged in the slide groove; the thrust plate 5.1.10 is arranged on the guide member 5.1.1 and is located between the slider 5.1.9 and the sleeve 5.1.5; the third electric telescopic rod 5.1.8 is arranged between the slider 5.1.9 and the thrust plate 5.1.10, and its two ends are respectively connected to the two; the third pressure sensor 5.1.11 is arranged on the thrust plate 5.1.10 and is connected to the end of the third electric telescopic rod 5.1.8; one end of the traction rod 5.1.7 is hinged to the connecting seat, and the other end is hinged to the slider 5.1.9.

[0060] The angle adjustment assembly 2 comprises a third driving member (a motor) 2.1 and a gear 2.2; the third driving member 2.1 is arranged on one side of the base 1, and its output end is connected to the gear 2.2; an annular rack meshing with the gear 2.2 is arranged on the periphery of the base 1;

[0061] The lifting and adjusting assembly 3 includes a hydraulic telescopic rod 3.1 and a telescopic sleeve 3.2; the hydraulic telescopic rod 3.1 is arranged between the base 1 and the mounting plate 4.1, and its two ends are respectively connected to the two; there are multiple telescopic sleeves 3.2, which are circumferentially arranged on the outer periphery of the hydraulic telescopic rod 3.1; the two ends of each telescopic sleeve 3.2 are respectively connected to the base 1 and the mounting plate 4.1. The telescopic sleeve 3.2 can provide a guiding effect when the height of the workpiece is adjusted; air holes are provided in the telescopic sleeve 3.2 to facilitate smooth guiding.

[0062] The drilling device also includes a limiting and tightening assembly 6; the limiting and tightening assembly 6 is arranged on one side of the base 1 and away from the drilling assembly 5; the limiting and tightening assembly 6 includes a limiting and adjusting distance component 6.1 and a limiting block 6.2; the limiting and adjusting distance component 6.1 is connected to the limiting block 6.2, and is used to adjust the limiting block 6.2 to tighten the workpiece; the limiting block 6.2 is an arc-shaped structure, and its arc surface is adapted to avoid being adapted to the curvature of the workpiece.

[0063] The position limiting and tightening assembly 6 further includes a second vertical plate 6.3; the second vertical plate 6.3 is arranged on one side of the base 1 and is arranged away from the drilling assembly 5; one end of the position limiting and distance adjusting member 6.1 is connected to the second vertical plate 6.3, and the other end is connected to the position limiting block 6.2;

[0064] The position limiting and distance adjusting component 6.1 comprises a fourth electric telescopic rod.

[0065] The drilling device further comprises a controller 7; the controller 7 is arranged in the installation box 5.2.1, and is connected with the first electric telescopic rod 4.4, the second electric telescopic rod 4.7, the third electric telescopic rod 5.1.8, the fourth electric telescopic rod, the first distance sensor 5.2.5, the first pressure sensor 4.8, the second pressure sensor 4.9, the third pressure sensor 5.1.11, the first driving member 5.2.2, the second driving member 5.1.2, the third driving member 2.1 and the hydraulic telescopic rod 3.1;

[0066] An openable and closable protective door is provided on the installation box 5.2.1 to facilitate inspection and maintenance of the equipment in the installation box 5.2.1.

[0067] The drilling device further comprises a second distance sensor 8 ; the second distance sensor 8 is arranged on a side of the installation box 5 . 2 . 1 close to the workpiece and is connected to the controller 7 .

[0068] The clamping assembly 4 also includes three distance sensors connected to the controller 7; the third distance sensor is arranged on the first clamping block 4.3, and is used to collect the distance signal between the center block 4.2 and the first clamping block 4.3, and transmit it to the controller 7. After reaching the distance threshold preset in the controller 7, the controller 7 controls the telescopic length of the first electric telescopic rod 4.4 under the distance threshold to improve the clamping efficiency of the clamping assembly 4 on the workpiece.

[0069] A drilling method using the drilling device comprises:

[0070] Step S1, the controller 7 controls the clamping assembly 4 to clamp the workpiece;

[0071] Specifically, the controller 7 controls the operation of the first electric telescopic rod 4.4 and the second electric telescopic rod 4.7, thereby linking the first clamping block 4.3 and the second clamping block 4.6 to approach each other to clamp the workpiece; the first pressure sensor 4.8 collects the pressure signal between the center block 4.2 and the first clamping block 4.3, and the second pressure sensor 4.9 collects the pressure signal between the first vertical plate 4.5 and the second clamping block 4.6, and transmits them to the controller 7. After reaching a preset pressure threshold in the controller 7, the controller 7 controls the telescopic length of the first electric telescopic rod 4.4 and the second electric telescopic rod 4.7 under the pressure threshold to link the first clamping block 4.3 and the second clamping block 4.6 to clamp the workpiece;

[0072] Step S2, the controller 7 controls the feed distance adjustment component 5.2 to link with the drill bit component 5.1 to complete the drilling operation on the workpiece; the controller 7 controls the lifting and adjusting component 3 to adjust the workpiece to an initial working height, so as to complete the drilling operation on the workpiece at the initial working height position;

[0073] Specifically, the second distance sensor collects the distance information of the workpiece and transmits it to the controller 7, and the controller 7 controls the telescopic height of the hydraulic telescopic rod 3.1 to adjust the workpiece to the initial working height position; wherein, the telescopic sleeve 3.2 can provide a guide for adjusting the height of the workpiece;

[0074] The controller 7 controls the first driving member 5.2.2 to drive the threaded rod 5.2.3 to rotate, and then links the connecting block 5.2.4 to drive the guide member 5.1.1 and the drill bit 5.1.3 to move toward the workpiece; the first distance sensor 5.2.5 collects the distance signal of the connecting block 5.2.4 relative to the workpiece in real time, and transmits it to the controller 7. After reaching the distance threshold preset in the controller 7, the controller 7 controls the first driving member 5.2.2 to stop rotating under the distance threshold, and the drill bit 5.1.3 is located at the required drilling position of the workpiece; the controller 7 controls the second driving member 5.1.2 to drive the drill bit 5.1.3 to complete the drilling operation;

[0075] According to the height of the required drilling position of the workpiece, the controller 7 presets the pressure threshold of the third pressure sensor 5.1.11, controls the traction rod 5.1.7 to link the drill bit 5.1.3 to the drilling height; specifically, in the traction guide, the third pressure sensor 5.1.11 collects the pressure signal between the thrust plate 5.1.10 and the slider 5.1.9, and transmits it to the controller 7. After reaching the pressure threshold preset in the controller 7, the controller 7 controls the telescopic length of the third electric telescopic rod 5.1.8 to link the traction rod 5.1.7 to pull the drill bit 5.1.3 to successfully complete the drilling operation; the elastic member 5.1.6 in a compressed state is used to provide a buffer stroke for the drill bit 5.1.3 to complete the drilling operation, so as to avoid the chipping of the drill bit 5.1.3 or damage to the workpiece;

[0076] Step S3, the controller 7 controls the angle adjustment assembly 2 to drive the base 1 to drive the workpiece to rotate to a desired angle, so as to complete the drilling operation at different angles of the workpiece;

[0077] Specifically, the controller 7 controls the third driving member 2.1 to link the gear 2.2 to sequentially drive the base 1 and the workpiece to rotate to the required angles, thereby completing the drilling operation at different angles of the workpiece;

[0078] Step S4, the controller 7 controls the lifting and adjusting assembly 3 to adjust the workpiece to the next required working height, so as to complete the drilling operation at the required working height position of the workpiece; the controller 7 controls the position limiting and tightening assembly 6 to complete the position limiting and tightening of the workpiece;

[0079] Specifically, the controller 7 controls the telescopic height of the hydraulic telescopic rod 3.1 to adjust the workpiece to the required height position for operation; the controller 7 controls the fourth electric telescopic rod to link the limit block 6.2 to tighten the workpiece; and steps S2-S3 are used to complete the drilling operation on the workpiece.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drilling device, characterized in that: The invention comprises a base (1), an angle adjustment component (2), a lifting adjustment component (3), a clamping component (4) and a drilling component (5); the base (1) is rotatably arranged; the angle adjustment component (2) is arranged on one side of the base (1) and is connected to the base (1) and is used to drive the base (1) to rotate to a desired angle; the lifting adjustment component (3) is arranged on the base (1) and is lifted and lowered relative to the base (1); the clamping component (4) is arranged on the lifting adjustment component (3) and comprises a clamping cavity for circumferentially clamping a workpiece; the drilling component (5) is arranged on a side of the base (1) away from the angle adjustment component (2) and comprises a drill head component (5.1) and a feed distance adjustment component (5.2); the drill head component (5.1) is arranged toward the workpiece; and the feed distance adjustment component (5.2) is connected to the drill head component (5.1).

2. The drilling device according to claim 1, characterized in that: The clamping assembly (4) comprises a mounting plate (4.1), a center distance-adjusting clamping member and an edge distance-adjusting clamping member; the mounting plate (4.1) is arranged on the lifting and lowering adjustment assembly (3); the center distance-adjusting clamping member is arranged on the center area of ​​the mounting plate (4.1), and the edge distance-adjusting clamping member is arranged on the edge area of ​​the mounting plate (4.1), and is arranged corresponding to the center distance-adjusting clamping member to enclose a clamping cavity.

3. The drilling device according to claim 2, characterized in that: The center distance adjustment clamping component comprises a center block (4.2) and at least three groups of center distance adjustment clamping pieces arranged at equal intervals on the periphery of the center block (4.2); each group of the center distance adjustment clamping pieces comprises a first clamping block (4.3) and a first electric telescopic rod (4.4); one end of the first electric telescopic rod (4.4) is connected to the center block (4.2), and the other end is connected to the first clamping block (4.3); The edge distance adjustment clamping member comprises at least three groups of edge distance adjustment clamping units arranged at equal intervals on the edge region of the mounting plate (4.1); each group of the edge distance adjustment clamping units comprises a first vertical plate (4.5), a second clamping block (4.6) and a second electric telescopic rod (4.7); the first vertical plate (4.5) is arranged on the edge of the mounting plate (4.1); one end of the second electric telescopic rod (4.7) is connected to the first vertical plate (4.5), and the other end is connected to the second clamping block (4.6); The second electric telescopic rod (4.7) is coaxially arranged with the first electric telescopic rod (4.4); the second clamping block (4.6) and the first clamping block (4.3) are arranged facing each other and a clamping cavity is formed between the two; A first guide limit groove for the sliding of the second clamping block (4.6) and the first clamping block (4.3) is provided on the mounting plate (4.1).

4. The drilling device according to claim 3, characterized in that: The clamping assembly (4) further comprises a first pressure sensor (4.8) and a second pressure sensor (4.9); the number of the first pressure sensors (4.8) is the same as the number of the first electric telescopic rods (4.4); the first pressure sensors (4.8) are arranged one-to-one on one end of the first electric telescopic rod (4.4) connected to the first clamping block (4.3); the number of the second pressure sensors (4.9) is the same as the number of the second electric telescopic rods (4.7); the second pressure sensors (4.9) are arranged one-to-one on one end of the second electric telescopic rod (4.7) connected to the first vertical plate (4.5).

5. The drilling device according to claim 4, characterized in that The feed distance adjustment component (5.2) comprises a mounting box (5.2.1), a first driving member (5.2.2), a threaded rod (5.2.3) and a connecting block (5.2.4); the mounting box (5.2.1) is arranged on a side of the base (1) away from the angle adjustment assembly (2); the first driving member (5.2.2) and the threaded rod (5.2.3) are both arranged in the mounting box (5.2.1), and the output end of the first driving member (5.2.2) is connected to the threaded rod (5.2.3); the connecting block (5.2.4) is arranged on the threaded rod (5.2.3), and a threaded hole adapted to the surface thread of the threaded rod (5.2.3) is arranged on the connecting block (5.2.4); The feeding distance adjusting component (5.2) further comprises a first distance sensor (5.2.5); the first distance sensor (5.2.5) is arranged on the connecting block (5.2.4); The drill bit component (5.1) comprises a guide component (5.1.1), a stroke buffer adjustment component, a second drive component ( 5.1.2) and a drill bit (5.1.3); a second guide limit slot is provided on the installation box (5.2.1); one end of the guide component (5.1.1) extends into the second guide limit slot and is connected to the connecting block (5.2.4), while the other end extends out of the second guide limit slot; the stroke buffer adjustment member is arranged on a side of the guide component (5.1.1) close to the workpiece; the second driving member (5.1.2) is arranged on the stroke buffer adjustment member, and its output end is connected to the drill bit (5.1.3); The travel buffer adjustment member comprises a mounting rod (5.1.4), a sleeve (5.1.5), an elastic member (5.1.6) and a traction guide member; the mounting rod (5.1.4) has two ends in the length direction, namely a first end and a second end, wherein the first end is arranged outside the sleeve (5.1.5), and the second end passes through the sleeve (5.1.5) and is connected to the second driving member (5.1.2); the elastic member (5.1.6) is sleeved on the mounting rod (5.1.4), and one end of the elastic member is respectively connected to the first end and the second end of the mounting rod (5.1.4); The first end is connected, and the other end is connected to the end of the sleeve (5.1.5) close to the first end of the mounting rod (5.1.4); the elastic member (5.1.6) is in a compressed state; an open groove is provided on one side of the sleeve (5.1.5) close to the guide member (5.1.1), and a connecting seat is provided on the open groove; one end of the connecting seat is connected to the mounting rod (5.1.4), and the other end is hinged to one end of the traction guide member, and the other end of the traction guide member is hinged to the guide member (5.1.1); The traction guide member comprises a traction rod (5.1.7), a third electric telescopic rod (5.1.8), a slider (5.1.9), a thrust plate (5.1.10) and a third pressure sensor (5.1.11); a slide groove is arranged on the guide member (5.1.1); the slider (5.1.9) can be slidably arranged in the slide groove; the thrust plate (5.1.10) is arranged on the guide member (5.1.1) and is located between the slider (5.1.9) and the sleeve (5 .1.5); the third electric telescopic rod (5.1.8) is arranged between the slider (5.1.9) and the thrust plate (5.1.10), and its two ends are respectively connected to the two; the third pressure sensor (5.1.11) is arranged on the thrust plate (5.1.10) and is connected to the end of the third electric telescopic rod (5.1.8); one end of the traction rod (5.1.7) is hinged to the connecting seat, and the other end is hinged to the slider (5.1.9).

6. The drilling device according to claim 5, characterized in that: The angle adjustment assembly (2) comprises a third driving member (2.1) and a gear (2.2); the third driving member (2.1) is arranged on one side of the base (1), and its output end is connected to the gear (2.2); an annular rack meshing with the gear (2.2) is arranged on the periphery of the base (1); The lifting and adjusting assembly (3) comprises a hydraulic telescopic rod (3.1) and a telescopic sleeve (3.2); the hydraulic telescopic rod (3.1) is arranged between the base (1) and the mounting plate (4.1), and its two ends are respectively connected to the two; there are a plurality of telescopic sleeves (3.2), which are circumferentially arranged on the outer periphery of the hydraulic telescopic rod (3.1); and the two ends of each telescopic sleeve (3.2) are respectively connected to the base (1) and the mounting plate (4.1).

7. The drilling device according to claim 6, characterized in that It also comprises a position-limiting and tightening assembly (6); the position-limiting and tightening assembly (6) is arranged on one side of the base (1) and is arranged away from the drilling assembly (5); the position-limiting and tightening assembly (6) comprises a position-limiting and distance-adjusting component (6.1) and a position-limiting block (6.2); the position-limiting and distance-adjusting component (6.1) is connected to the position-limiting block (6.2) and is used to adjust the position-limiting block (6.2) to tighten the workpiece.

8. The drilling device according to claim 7, characterized in that The position limiting and tightening assembly (6) further comprises a second vertical plate (6.3); the second vertical plate (6.3) is arranged on one side of the base (1) and is arranged away from the drilling assembly (5); one end of the position limiting and distance adjusting member (6.1) is connected to the second vertical plate (6.3), and the other end is connected to the position limiting block (6.2); The position limiting and distance adjusting component (6.1) comprises a fourth electric telescopic rod.

9. The drilling device according to claim 8, characterized in that It also includes a controller (7); the controller (7) is arranged in the installation box (5.2.1), and is connected to the first electric telescopic rod (4.4), the second electric telescopic rod (4.7), the third electric telescopic rod (5.1.8), the fourth electric telescopic rod, the first distance sensor (5.2.5), the first pressure sensor (4.8), the second pressure sensor (4.9), the third pressure sensor (5.1.11), the first driving member (5.2.2), the second driving member (5.1.2), the third driving member (2.1) and the hydraulic telescopic rod (3.1); An openable and closable protective door is provided on the installation box (5.2.1); The drilling device further comprises a second distance sensor (8); the second distance sensor (8) is arranged on a side of the installation box (5.2.1) close to the workpiece and is connected to the controller (7).

10. A drilling method using the drilling device according to claim 9, characterized in that: include: Step S1, the controller (7) controls the clamping assembly (4) to clamp the workpiece; Specifically, the controller (7) controls the operation of the first electric telescopic rod (4.4) and the second electric telescopic rod (4.7), thereby linking the first clamping block (4.3) and the second clamping block (4.6) to move closer to each other to clamp the workpiece; the first pressure sensor (4.8) collects the pressure signal between the central block (4.2) and the first clamping block (4.3), and the second pressure sensor (4.9) collects the pressure signal between the first vertical plate (4.5) and the second clamping block (4.6), and transmits them to the controller (7); after reaching a preset pressure threshold in the controller (7), the controller (7) controls the telescopic length of the first electric telescopic rod (4.4) and the second electric telescopic rod (4.7) under the pressure threshold to link the first clamping block (4.3) and the second clamping block (4.6) to clamp the workpiece; Step S2, the controller (7) controls the feed distance adjustment component (5.2) to link with the drill bit component (5.1) to complete the drilling operation on the workpiece; the controller (7) controls the lifting and lowering adjustment component (3) to adjust the workpiece to an initial working height, so as to complete the drilling operation on the workpiece at the initial working height position; Specifically, the second distance sensor collects distance information of the workpiece and transmits it to the controller (7), and the controller (7) controls the telescopic height of the hydraulic telescopic rod (3.1) to adjust the workpiece to an initial working height position; wherein the telescopic sleeve (3.2) can provide a guiding effect when adjusting the height of the workpiece; The controller (7) controls the first driving member (5.2.2) to drive the threaded rod (5.2.3) to rotate, thereby linking the connecting block (5.2.4) to drive the guide member (5.1.1) and the drill bit (5.1.3) to move toward the workpiece; the first distance sensor (5.2.5) collects the distance signal of the connecting block (5.2.4) relative to the workpiece in real time and transmits it to the controller (7); when a distance threshold preset in the controller (7) is reached, the controller (7) controls the first driving member (5.2.2) to stop rotating at the distance threshold, and the drill bit (5.1.3) is located at the drilling position required by the workpiece; the controller (7) controls the second driving member (5.2.2) to stop rotating. 5.1.2) drives the drill bit (5.1.3) to complete the drilling operation; in, According to the height of the required drilling position of the workpiece, the controller (7) presets a pressure threshold of the third pressure sensor (5.1.11) and controls the traction rod (5.1.7) to link the drill bit (5.1.3) to the drilling height; specifically, in the traction guide, the third pressure sensor (5.1.11) collects the pressure signal between the thrust plate (5.1.10) and the slider (5.1.9) and transmits it to the controller (7); after reaching the pressure threshold preset in the controller (7), the controller (7) controls the telescopic length of the third electric telescopic rod (5.1.8) under the pressure threshold to link the traction rod (5.1.7) to pull the drill bit (5.1.3) to successfully complete the drilling operation; the elastic member (5.1.6) in a compressed state is used to provide a buffer stroke for the drill bit (5.1.3) to complete the drilling operation, thereby avoiding the chipping of the drill bit (5.1.3) or damage to the workpiece; Step S3, the controller (7) controls the angle adjustment component (2) to drive the base (1) to drive the workpiece to rotate to a desired angle, so as to complete drilling operations at different angles of the workpiece; Specifically, the controller (7) controls the third driving member (2.1) to link with the gear (2.2) to sequentially drive the base (1) and the workpiece to rotate to a desired angle, thereby completing drilling operations at different angles of the workpiece; Step S4, the controller (7) controls the lifting and adjusting assembly (3) to adjust the workpiece to the next required working height, so as to complete the drilling operation at the required working height position of the workpiece; the controller (7) controls the position limiting and tightening assembly (6) to complete the position limiting and tightening of the workpiece; Specifically, the controller (7) controls the telescopic height of the hydraulic telescopic rod (3.1) to adjust the workpiece to a required height position for operation; the controller (7) controls the fourth electric telescopic rod to link with the limit block (6.2) to press the workpiece tightly; and steps S2-S3 are used to complete the drilling operation on the workpiece.

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