A drilling device for beam machining

Abstract

The present application belongs to the technical field of drilling, and particularly relates to a drilling device for cross beam machining; four assembly columns are arranged in a rectangular distribution on the left side of an assembly table, and each of the four assembly columns is provided with an extension clamping mechanism near the middle of the left side of the assembly table; a transmission mechanism is installed on the middle of the left side of the assembly table; an elastic abutting mechanism is fixedly connected with the movable end of the transmission mechanism; an assembly mechanism is fixedly installed on the top left side of the elastic abutting mechanism; a vertical drilling mechanism is fixedly installed on the top of the assembly mechanism, and the drilling end of the vertical drilling mechanism extends out of the assembly mechanism; the present application has a simple structure and a reasonable design, and can be simultaneously applied to the armor and machining of an arc-shaped U-shaped cross beam and a linear U-shaped cross beam in use, and the operation adaptability and drilling efficiency are effectively improved.

Description

Technical Field

[0001] This invention belongs to the field of drilling technology, and specifically relates to a drilling device for processing crossbeams. Background Technology

[0002] The crossbeams of a car not only support the vehicle body and protect the safety of passengers and cargo, but also cushion and absorb impact forces during a collision. Drilling holes in the crossbeams is primarily to release internal stresses generated during metal processing, preventing component deformation, reducing metal fatigue, and extending service life.

[0003] During the processing of crossbeams, drilling devices are required for drilling. In the existing technology, such as the anti-vibration drilling device for automobile crossbeam brackets with patent application number "CN202310617621.3", compared with the traditional drilling method, it can support the drill bit during drilling, which largely avoids the drill bit from vibrating due to eccentricity or other reasons, and at the same time improves the drilling accuracy.

[0004] However, in practical applications, automotive U-shaped crossbeams are not simply straight structures. To adapt to the streamlined design of the vehicle body and the requirements for collision energy absorption, the application of curved U-shaped crossbeams is becoming increasingly widespread. When drilling holes in the curved crossbeams, the aforementioned patent cannot complete the drilling of the curved surface in one go. Instead, it is necessary to frequently adjust the positioning angle and support position of the clamping mechanism and perform multiple calibrations and adjustments. This not only increases the complexity of operation and extends the processing cycle, but also exacerbates the risk of surface damage to the crossbeam due to repeated clamping, seriously affecting processing efficiency and product qualification rate. Summary of the Invention

[0005] The purpose of this invention is to provide a drilling device for beam processing, which can be used for both arc-shaped and straight U-shaped beams in armoring and processing, effectively improving operational adaptability and drilling efficiency.

[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows: A drilling device for machining beams, comprising: The assembly table has four assembly columns arranged in a rectangle on the left side. Each of the four assembly columns has a telescopic clamping mechanism installed at one end near the middle of the left side of the assembly table. The transmission mechanism is installed in the middle left side of the assembly table. The flexible abutment mechanism is fixedly connected to the movable end of the transmission mechanism; The assembly mechanism is fixedly installed on the top left side of the elastic abutment mechanism; A vertical drilling mechanism is fixedly installed on the top of the assembly mechanism, with the drilling end of the vertical drilling mechanism extending out of the assembly mechanism. The controller is fixedly installed on the front side of the assembly table. The telescopic clamping mechanism, transmission mechanism, elastic abutment mechanism, assembly mechanism and vertical drilling mechanism are all electrically connected to the controller.

[0007] As a preferred technical solution, the telescopic clamping mechanism includes a vertical assembly column, one end of which is fixedly connected to the side of the assembly column near the middle of the assembly table. An assembly cavity is opened inside the vertical assembly column. A first clamping plate is fixedly installed on the side of the vertical assembly column near the middle of the assembly table. A first cylinder is fixedly installed inside the assembly cavity. The telescopic end of the first cylinder extends out of the first clamping plate and is fixedly connected to a second clamping plate. The first cylinder is electrically connected to a controller.

[0008] As a preferred technical solution, the transmission mechanism includes Two fixing plates, respectively, are fixedly installed on the left side of the assembly table and arranged opposite each other; The lead screw and slide bar are arranged in parallel between the two fixed plates; The transmission block is simultaneously sleeved on the lead screw and the slide bar, and can slide along the length of the slide bar. The power mechanism is fixed on the outside of the fixed plate, and its output end is connected to the lead screw to drive the lead screw to rotate. The elastic abutment mechanism is fixedly installed on the left side of the transmission block, and the power mechanism is electrically connected to the controller.

[0009] As a preferred technical solution, the elastic abutment mechanism includes an extension block, which is fixedly installed on the left side of the transmission block. An assembly groove is provided at the left end of the extension block, and a displacement column is slidably assembled inside the assembly groove. A spring is fixedly installed on the inner wall of one side of the assembly groove, and one end of the spring is fixedly connected to the displacement column. A transverse opening communicating with the assembly groove is provided at the top of the extension block. A first electromagnet that is slidably connected to the transverse opening is fixedly installed on the right side of the periphery of the displacement column. A second electromagnet that matches the position of the first electromagnet is fixedly installed on the rear side of the top of the extension block. A U-shaped assembly frame is fixedly installed at the end of the displacement column away from the extension block. The upper and lower sides of the U-shaped assembly frame are rotatably equipped with abutment wheels. The first electromagnet and the second electromagnet are both electrically connected to the controller.

[0010] As a preferred technical solution, the assembly mechanism includes a matching platform, which is fixedly installed on the top right side of the U-shaped assembly frame. A second cylinder is fixedly installed on the right side of the matching platform. The telescopic end of the second cylinder passes through the matching platform and is fixedly installed on an L-shaped mounting bracket. A first ranging sensor is fixedly installed on the upper left side of the matching platform. Both the second cylinder and the first ranging sensor are electrically connected to the controller.

[0011] As a preferred technical solution, the vertical drilling mechanism includes a third cylinder, which is fixedly installed on the top left side of the L-shaped mounting bracket. The telescopic end of the third cylinder passes through the L-shaped mounting bracket and is fixedly installed with an assembly box. A disassembly and assembly mechanism is rotatably assembled at the bottom of the assembly box. A drilling component is detachably installed at the bottom of the disassembly and assembly mechanism. A first drive motor is installed inside the assembly box. The output shaft of the first drive motor is connected to the disassembly and assembly mechanism via a transmission connection. The first drive motor is electrically connected to the controller.

[0012] As a preferred technical solution, a fourth cylinder is fixedly installed on the left side inside the U-shaped assembly frame. A connecting frame is fixedly installed on the telescopic end of the fourth cylinder. A two-way lead screw is rotatably assembled inside the connecting frame. Horizontal blocks are slidably assembled inside the connecting frame in a vertical distribution. The two horizontal blocks are threadedly connected to the positive and negative thread sections of the two-way lead screw, respectively. An L-shaped stabilizing block is fixedly installed on the left side of each of the two horizontal blocks. A pressure sensor is installed on the side of each of the two L-shaped stabilizing blocks that is far apart from each other. A through hole matching the drilling part is opened on the side of each of the two L-shaped stabilizing blocks that is far apart from each other. A second drive motor is fixedly installed on the top of the connecting frame. The output shaft of the second drive motor is connected to the top of the bidirectional lead screw. A second ranging sensor is fixedly installed on the left side inside the U-shaped assembly frame. Both the second drive motor and the second ranging sensor are electrically connected to the controller.

[0013] As a preferred technical solution, the two horizontal blocks are fixedly installed with a first telescopic sleeve that matches the bidirectional lead screw on one side close to each other, and the two horizontal blocks are fixedly installed with a second telescopic sleeve on one side far from each other. The two second telescopic sleeves are fixedly connected to the inner walls of the upper and lower sides of the connecting frame at one end far from each other.

[0014] The beneficial effects of this invention are: 1. This device can clamp and fix the U-shaped beam in one go through the telescopic clamping mechanism. The clamping is firm and it is not easy to shift during the processing. There is no need for repeated disassembly and repositioning, which reduces the damage to the workpiece surface and improves the processing qualification rate.

[0015] 2. The elastic abutment mechanism uses an electromagnet to unlock the abutment wheel. After the position of the abutment wheel is accurately located, the electromagnet locks again. With the elastic adaptive compensation of the spring, it can automatically adapt to the contours of straight and curved U-shaped beams, and the abutment support is stable and reliable, without the need for repeated manual adjustment of the mechanism angle.

[0016] 3. The assembly mechanism relies on the cooperation of the first distance sensor and the second cylinder to make precise fine-tuning and alignment of the vertical drilling mechanism, with high hole positioning accuracy.

[0017] 4. After adding the auxiliary stabilizing structure in Embodiment 2, the L-shaped stabilizing block can support the crossbeam from the inside, the pressure sensor can control the pressure contact, and the through hole can radially limit the long-sized drilled parts, suppressing drilling sway, greatly reducing drilling vibration, and further improving drilling accuracy and processing stability. Attached Figure Description

[0018] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention from another perspective; Figure 3 This is a schematic diagram of the rear view structure of the present invention; Figure 4 This is a side view of the structure of the present invention; Figure 5 This is a top view of the structure of the present invention; Figure 6 This is a partial cross-sectional structural diagram of the present invention; Figure 7 This is a partial structural diagram of the present invention.

[0020] Reference numerals: Assembly table 1, Assembly column 11, Telescopic clamping mechanism 2, Vertical assembly column 21, Assembly cavity 22, First clamping plate 23, First cylinder 24, Second clamping plate 25, Transmission mechanism 3, Fixed plate 31, Lead screw 32, Transmission block 33, Slide rod 34, Power mechanism 35, Elastic abutment mechanism 4, Extension block 41, Assembly groove 42, Displacement column 43, Spring 48, First electromagnet 44, Second electromagnet 45, U-shaped assembly frame 46, Abutment wheel 47, Assembly mechanism 5, Matching table 51, Second cylinder 52, L-shaped mounting frame 53, First distance sensor 54, Vertical drilling mechanism 6, Third cylinder 61, Assembly box 63, Drilling component 64, First drive motor 66, Controller 7, Fourth cylinder 8, Connecting frame 81, Bidirectional lead screw 82, Horizontal block 83, L-shaped stabilizing block 84, Pressure sensor 85, Second drive motor 87, Second distance sensor 87, Through hole 88. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] Example 1: like Figure 1-6 As shown, a drilling device for machining a crossbeam according to the present invention includes... Assembly table 1 has four assembly columns 11 arranged in a rectangular pattern on its left side. Each of the four assembly columns 11 has a telescopic clamping mechanism 2 installed on the side of the left side of the assembly table 1 near the middle. Specifically, the telescopic clamping mechanism 2 includes a vertical assembly column 21. One end of the vertical assembly column 21 is fixedly connected to the end of the assembly column 11 near the middle of the assembly table 1. An assembly cavity 22 is opened inside the vertical assembly column 21. A first clamping plate 23 is fixedly installed on the side of the vertical assembly column 21 near the middle of the assembly table 1. A first cylinder 24 is fixedly installed inside the assembly cavity 22. The telescopic end of the first cylinder 24 extends out of the first clamping plate 23 and is fixedly connected to a second clamping plate 25. The first cylinder 24 is electrically connected to the controller 7.

[0023] When using this device, first place the crossbeam to be processed on the left side of the assembly table 1, and start the four telescopic clamping mechanisms 2 through the controller 7. The first cylinder 24 in each telescopic clamping mechanism 2 drives the second clamping plate 25 to move towards the first clamping plate 23. The U-shaped crossbeam is flexibly clamped by the two transverse plates, and the U-shaped crossbeam is stably fixed in the processing position to avoid displacement during subsequent drilling. The clamping method can be effectively adjusted according to the actual operation process during processing. Subsequently, the controller 7 controls the transmission mechanism 3 to move the elastic abutment mechanism 4, which automatically adapts to the profile of the crossbeam and positions itself. Then, the controller 7 drives the vertical drilling mechanism 6 to move to the drilling position through the assembly mechanism 5, and the vertical drilling mechanism 6 performs the drilling operation. After the single hole is processed, the transmission mechanism 3 drives the entire mechanism to move, and the drilling of all holes on the crossbeam is completed in sequence. Throughout the process, the controller 7 coordinates the actions of each mechanism to achieve continuous drilling of the crossbeam.

[0024] By cooperating with the elastic abutment mechanism 4 and the transmission mechanism 3, the beam can be automatically adapted to the arc contour, allowing the vertical drilling mechanism 6 to move smoothly along the arc surface. This eliminates the need for frequent adjustments to the clamping angle and support position, significantly reducing manual intervention steps and operational complexity. The drilling method described above is also applicable to drilling of straight U-shaped beams, further enhancing its applicability and practicality.

[0025] The transmission mechanism 3 is installed on the left side of the assembly table 1. Specifically, the transmission mechanism 3 includes two fixed plates 31 that are fixedly installed on the left side of the assembly table 1 and are arranged opposite each other; a lead screw 32 and a slide rod 34 that are arranged in parallel between the two fixed plates 31; a transmission block 33 that is sleeved on both the lead screw 32 and the slide rod 34 and can slide along the length of the slide rod 34; a power mechanism 35 that is fixed on the outside of the fixed plate 31 and whose output end is connected to the lead screw 32 to drive the lead screw 32 to rotate; and an elastic abutment mechanism 4 that is fixedly installed on the left side of the transmission block 33. The power mechanism 35 is electrically connected to the controller 7.

[0026] When this transmission mechanism 3 is in use, the controller 7 controls the power mechanism 35 to start, and the power mechanism 35 drives the lead screw 32 to rotate between the two fixed plates 31. The lead screw 32 drives the transmission block 33 to move along the axial direction of the lead screw 32 through the threaded transmission. The transmission block 33 slides on the two slide rods 34 at the same time. The slide rods 34 guide and limit the transmission block 33 to ensure that the movement is smooth and without deviation. The transmission block 33 drives the elastic abutment mechanism 4 fixedly connected to its left side to move synchronously, and then drives the elastic abutment mechanism 4 to feed along the direction to be processed of the crossbeam, providing stable and controllable linear displacement for subsequent drilling operations.

[0027] The power mechanism 35 uses a combination of a motor and a gearbox from the existing technology, which makes it easy for the staff to control the displacement speed of the transmission block 33.

[0028] The elastic abutment mechanism 4 is fixedly connected to the movable end of the transmission mechanism 3. Specifically, the elastic abutment mechanism 4 includes an extension block 41, which is fixedly installed on the left side of the transmission block 33. An assembly groove 42 is opened at the left end of the extension block 41. A displacement column 43 is slidably assembled inside the assembly groove 42. A spring 48 is fixedly installed on the inner wall of one side of the assembly groove 42. One end of the spring 48 is fixedly connected to the displacement column 43. A transverse opening communicating with the assembly groove 42 is opened at the top of the extension block 41. A first electromagnet 44 slidably connected to the transverse opening is fixedly installed on the right side of the periphery of the displacement column 43. A second electromagnet 45 matching the position of the first electromagnet 44 is fixedly installed on the rear side of the top of the extension block 41. A U-shaped assembly frame 46 is fixedly installed at the end of the displacement column 43 away from the extension block 41. The upper and lower sides of the U-shaped assembly frame 46 are rotatably equipped with abutment wheels 47. The first electromagnet 44 and the second electromagnet 45 are both electrically connected to the controller 7.

[0029] When the elastic abutment mechanism 4 is in use, the extension block 41 moves synchronously with the transmission block 33 of the transmission mechanism 3, driving the abutment wheel 47 on the U-shaped assembly frame 46 to approach the arc surface of the crossbeam; when the abutment wheel 47 contacts the arc surface of the crossbeam, the displacement column 43 is subjected to a reaction force and slides into the assembly groove 42 of the extension block 41, while compressing the spring 48 to achieve elastic buffering and displacement compensation. When changing different drilling points, due to the existence of displacement compensation, the abutment wheel 47 always fits against the surface of the arc crossbeam. The controller 7 can control the on / off state of the first electromagnet 44 and the second electromagnet 45. When the position needs to be locked, the two electromagnets are energized and attracted to fix the displacement column 43 and keep the abutment wheel 47 in contact. When unlocking, the electromagnet is de-energized, and the elastic force of the spring 48 pushes the displacement column 43 to reset. The abutment wheel 47 can continue to move along the arc surface of the crossbeam with the transmission mechanism 3, realizing adaptive following of the arc contour.

[0030] In this way, the displacement column 43 and the spring 48 work together to automatically compensate for the contour changes of the crossbeam's arc surface, so that the abutment wheel 47 always fits in contact with the workpiece surface, eliminating the need for repeated manual adjustment of the mechanism angle, and adapting to the processing requirements of both arc-shaped and straight crossbeams.

[0031] Under the action of the two abutment wheels 47, the relative position of the vertical drilling mechanism 6 on the surface of the arc-shaped crossbeam will not change, and the drilling accuracy is high.

[0032] Assembly mechanism 5 is fixedly installed on the top left side of elastic abutment mechanism 4; specifically, assembly mechanism 5 includes matching platform 51, which is fixedly installed on the top right side of U-shaped assembly frame 46. A second cylinder 52 is fixedly installed on the right side of matching platform 51. The telescopic end of the second cylinder 52 passes through matching platform 51 and is fixedly installed with L-shaped mounting bracket 53. A first ranging sensor 54 is fixedly installed on the upper left side of matching platform 51. Both the second cylinder 52 and the first ranging sensor 54 are electrically connected to controller 7.

[0033] During use, the matching platform 51 is displaced along with the U-shaped mounting frame 46. The first distance sensor 54 is used to measure the distance between the matching platform 51 and the L-shaped mounting frame 53 to further determine the drilling position. Under the control of the controller 7, the second cylinder 52 can drive the L-shaped mounting frame 53 to make precise left and right lateral movements, which facilitates the adjustment of the drilling position.

[0034] A vertical drilling mechanism 6 is fixedly installed on the top of the assembly mechanism 5, with its drilling end extending out of the assembly mechanism 5. Specifically, the vertical drilling mechanism 6 includes a third cylinder 61, which is fixedly installed on the top left side of the L-shaped mounting bracket 53. The telescopic end of the third cylinder 61 passes through the L-shaped mounting bracket 53 and is fixedly installed on an assembly box 63. A disassembly and assembly mechanism is rotatably mounted on the bottom of the assembly box 63. A drilling component 64 is detachably installed on the bottom of the disassembly and assembly mechanism. A first drive motor 66 is installed inside the assembly box 63. The output shaft of the first drive motor 66 is connected to the disassembly and assembly mechanism via a transmission connection. The first drive motor 66 is electrically connected to the controller 7.

[0035] When in use, after determining the drilling point, the operator starts the first drive motor 66 through the controller 7 to drive the drilling component 64 to rotate, and starts the third cylinder 61. The third cylinder 61 drives the drilling component 64 downward to perform drilling work. The operation is simple, and the disassembly and assembly mechanism adopts the connection structure of the existing technology, which makes it easy to replace the drilling component 64.

[0036] The controller 7 is fixedly installed on the front side of the assembly table 1. The telescopic clamping mechanism 2, the transmission mechanism 3, the elastic abutment mechanism 4, the assembly mechanism 5, and the vertical drilling mechanism 6 are all electrically connected to the controller 7.

[0037] Example 2: Further improvements were made based on Example 1, such as... Figure 7 The U-shaped assembly frame 46 has a fourth cylinder 8 fixedly installed on the left side inside. The telescopic end of the fourth cylinder 8 is fixedly installed with a connecting frame 81. A bidirectional lead screw 82 is rotatably installed inside the connecting frame 81. Horizontal blocks 83 are slidably installed inside the connecting frame 81 in a vertically distributed manner. The two horizontal blocks 83 are threadedly connected to the forward and reverse thread sections of the bidirectional lead screw 82, respectively. L-shaped stabilizing blocks 84 are fixedly installed on the left side of each of the two horizontal blocks 83. Pressure sensors 85 are installed on the side of each of the two L-shaped stabilizing blocks 84 that are far apart from each other. Through holes 88 that match the drilling part 64 are opened on the side of each of the two L-shaped stabilizing blocks 84 that are far apart from each other. A second drive motor 86 is fixedly installed on the top of the connecting frame 81. The output shaft of the second drive motor 86 is connected to the top of the bidirectional lead screw 82. A second ranging sensor 87 is fixedly installed on the left side inside the U-shaped assembly frame 46. Both the second drive motor 86 and the second ranging sensor 87 are electrically connected to the controller 7.

[0038] In the initial state, after the U-shaped crossbeam is installed, the second distance sensor 87 continuously measures the position of the connecting frame 81 relative to the U-shaped assembly frame 46. The through holes 8 of the two L-shaped stabilizing blocks 84 are kept aligned with the position of the drilled part 64. When the drilled part 64 moves, the first distance sensor 54 monitors the displacement distance and feeds it back to the controller 7. The second distance sensor 87 monitors the distance of the connecting frame 81. The controller 7 controls the fourth cylinder to drive the connecting frame 81 to move synchronously by the same distance, so as to keep the alignment requirement at all times. When the L-shaped stabilizing block 84 is inserted into the U-shaped crossbeam, the operator controls the output shaft of the second drive motor 86 to rotate through the controller 7, which drives the bidirectional lead screw 82 to rotate. The bidirectional lead screw 82 drives the L-shaped stabilizing block 84 to move away from each other and abut against the upper and lower inner walls of the U-shaped crossbeam. This, together with the telescopic clamping mechanism 2, further improves the stability during drilling. The pressure sensor 85 monitors the contact pressure to ensure that the contact force is appropriate. When drilling is performed on the drilling component 64, since drilling is required on both the upper and lower surfaces of the U-shaped crossbeam at the same time, the length of the drilling component 64 is relatively long, and the swing radius will increase as the drilling position changes. After the drilling component 64 passes through the two through holes 88 in sequence, the inner wall of the through hole 88 limits the periphery of the drilling component 64, restricts its swing radius, and increases the drilling stability.

[0039] Two horizontal blocks 83 are fixedly installed on one side close to each other, with a first telescopic sleeve matching the bidirectional lead screw 82. Two horizontal blocks 83 are fixedly installed on one side away from each other, with a second telescopic sleeve. The two second telescopic sleeves are fixedly connected to the inner walls of the upper and lower sides of the connecting frame 81 at their respective ends. The two second telescopic sleeves and the first telescopic sleeve can protect the bidirectional lead screw 82 from flying debris and will not affect the movement of the two L-shaped stabilizing blocks 84.

[0040] All electrical components mentioned in this solution are existing technologies, and their models are only one of them. Any electrical component that can achieve the purpose of this solution can be used.

[0041] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical connections between the various electrical components are completed in sequence. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0042] The device is used as follows: First, the U-shaped crossbeam to be processed is placed on the left side of the assembly table 1. The first cylinder 24 of the four sets of telescopic clamping mechanisms 2 drives the second clamping plate 25 to cooperate with the first clamping plate 23 to clamp and fix the crossbeam. The controller 7 uniformly manages the electrical components of the whole machine.

[0043] In the initial state, the first electromagnet 44 and the second electromagnet 45 are energized and locked, keeping the abutment wheel 47 in a fixed position; when displacement adjustment is required, the controller 7 controls the electromagnets to be energized and unlocked, releasing the lock on the displacement column 43.

[0044] Subsequently, the transmission mechanism 3 drives the elastic abutment mechanism 4 to move laterally as a whole, first allowing the abutment wheel 47 to fit against the cross section of the U-shaped beam, relying on the spring 48 to achieve adaptive buffering and fitting; after the abutment fit is completed, the transmission mechanism 3 finely adjusts the lateral position to accurately position the processing station.

[0045] After the position is determined, the first electromagnet 44 and the second electromagnet 45 are energized and locked again to fix the displacement column 43, so that the two abutting wheels 47 are stably pressed against the cross section of the beam, keeping the support reference unchanged.

[0046] At the same time, the assembly mechanism 5 moves synchronously with the elastic abutment mechanism 4, the first distance sensor 54 measures the distance in real time, and the controller 7 drives the L-shaped mounting bracket 53 to make fine adjustments through the second cylinder 52, so that the vertical drilling mechanism 6 is precisely aligned with the drilling position; then the vertical drilling mechanism 6 is driven by the first drive motor 66 to rotate the drilling part 64, and the third cylinder 61 presses down to feed, completing the drilling operation.

[0047] When the structure of Embodiment 2 is adopted, the fourth cylinder 8 pushes the connecting frame 81 forward, the second drive motor 86 drives the bidirectional lead screw 82 to drive the L-shaped stabilizing block 84 to open and press against the inner wall of the crossbeam, the pressure sensor 85 controls the contact force, and the drilling component 64 passes through the through hole 88 and is limited to prevent shaking, further improving the drilling stability.

[0048] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A drilling device for machining crossbeams, characterized in that: include Assembly table (1), four assembly columns (11) are arranged in a rectangular pattern on the left side of the assembly table (1), and telescopic clamping mechanisms (2) are installed on one end of the four assembly columns (11) near the middle of the left side of the assembly table (1). Transmission mechanism (3) is installed on the middle left side of the assembly table (1); The elastic abutment mechanism (4) is fixedly connected to the movable end of the transmission mechanism (3); Assembly mechanism (5) is fixedly installed on the top left side of elastic abutment mechanism (4); Vertical drilling mechanism (6) is fixedly installed on the top of assembly mechanism (5), and the drilling end of vertical drilling mechanism (6) extends out of assembly mechanism (5). The controller (7) is fixedly installed on the front side of the assembly table (1). The telescopic clamping mechanism (2), transmission mechanism (3), elastic contact mechanism (4), assembly mechanism (5) and vertical drilling mechanism (6) are all electrically connected to the controller (7).

2. The drilling device for processing crossbeams according to claim 1, characterized in that: The telescopic clamping mechanism (2) includes a vertical assembly column (21), one end of which is fixedly connected to the assembly column (11) near the middle of the assembly table (1). An assembly cavity (22) is opened inside the vertical assembly column (21). A first clamping plate (23) is fixedly installed on the side of the vertical assembly column (21) near the middle of the assembly table (1). A first cylinder (24) is fixedly installed inside the assembly cavity (22). The telescopic end of the first cylinder (24) extends out of the first clamping plate (23) and is fixedly connected to a second clamping plate (25). The first cylinder (24) is electrically connected to the controller (7).

3. A drilling device for machining a crossbeam according to claim 1, characterized in that: The transmission mechanism (3) includes Two fixing plates (31) are fixedly installed on the left side of the assembly table (1) and are arranged opposite each other. The lead screw (32) and slide bar (34) are arranged in parallel between the two fixed plates (31). The transmission block (33) is simultaneously sleeved on the lead screw (32) and the slide rod (34), and can slide along the length of the slide rod (34); The power mechanism (35) is fixed on the outside of the fixed plate (31), and its output end is connected to the lead screw (32) to drive the lead screw (32) to rotate; The elastic abutment mechanism (4) is fixedly installed on the left side of the transmission block (33), and the power mechanism (35) is electrically connected to the controller (7).

4. The drilling device for processing crossbeams according to claim 3, characterized in that: The elastic abutment mechanism (4) includes an extension block (41), which is fixedly installed on the left side of the transmission block (33). An assembly groove (42) is provided at the left end of the extension block (41). A displacement column (43) is slidably assembled inside the assembly groove (42). A spring (48) is fixedly installed on the inner wall of one side of the assembly groove (42). One end of the spring (48) is fixedly connected to the displacement column (43). A transverse opening communicating with the assembly groove (42) is provided at the top of the extension block (41). A first electromagnet (44) slidably connected to the transverse opening is fixedly installed on the right side of the periphery of the displacement column (43). A second electromagnet (45) matching the position of the first electromagnet (44) is fixedly installed on the rear side of the top of the extension block (41). A U-shaped assembly frame (46) is fixedly installed at the end of the displacement column (43) away from the extension block (41). The upper and lower sides of the U-shaped assembly frame (46) are equipped with abutment wheels (47). The first electromagnet (44) and the second electromagnet (45) are electrically connected to the controller (7).

5. The drilling device for processing crossbeams according to claim 4, characterized in that: The assembly mechanism (5) includes a matching platform (51), which is fixedly installed on the top right side of the U-shaped assembly frame (46). A second cylinder (52) is fixedly installed on the right side of the matching platform (51). The telescopic end of the second cylinder (52) passes through the matching platform (51) and is fixedly installed on an L-shaped mounting bracket (53). A first ranging sensor (54) is fixedly installed on the upper left side of the matching platform (51). Both the second cylinder (52) and the first ranging sensor (54) are electrically connected to the controller (7).

6. The drilling device for processing crossbeams according to claim 5, characterized in that: The vertical drilling mechanism (6) includes a third cylinder (61), which is fixedly installed on the top left side of the L-shaped mounting bracket (53). The telescopic end of the third cylinder (61) passes through the L-shaped mounting bracket (53) and is fixedly installed with an assembly box (63). The bottom of the assembly box (63) is rotatably equipped with a disassembly and assembly mechanism. The bottom of the disassembly and assembly mechanism is detachably equipped with a drilling component (64). The first drive motor (66) is installed inside the assembly box (63). The output shaft of the first drive motor (66) is connected to the disassembly and assembly mechanism. The first drive motor (66) is electrically connected to the controller (7).

7. A drilling device for machining crossbeams according to claim 6, characterized in that: The fourth cylinder (8) is fixedly installed on the left side inside the U-shaped assembly frame (46). The telescopic end of the fourth cylinder (8) is fixedly installed with a connecting frame (81). The connecting frame (81) is rotatably assembled with a two-way screw (82). The connecting frame (81) is slidably assembled with horizontal blocks (83) distributed vertically inside. The two horizontal blocks (83) are respectively threaded to the positive and negative thread sections of the two-way screw (82). The left side of each of the two horizontal blocks (83) is fixedly installed with an L-shaped stabilizing block (84). The two L-shaped stabilizing blocks (84) are each equipped with a pressure sensor (85) on the side away from each other. The two L-shaped stabilizing blocks (84) are each provided with a through hole (88) that matches the drilling part (64) on the side away from each other. The top of the connecting frame (81) is fixedly installed with a second drive motor (86). The output shaft of the second drive motor (86) is connected to the top of the bidirectional lead screw (82). The left side of the U-shaped assembly frame (46) is fixedly installed with a second distance sensor (87). The second drive motor (86) and the second distance sensor (87) are both electrically connected to the controller (7).

8. A drilling device for machining crossbeams according to claim 7, characterized in that: Two horizontal blocks (83) are fixedly installed on one side close to each other, with a first telescopic sleeve matching the bidirectional screw (82). Two horizontal blocks (83) are fixedly installed on one side far from each other, with a second telescopic sleeve respectively. The two second telescopic sleeves are fixedly connected to the inner walls of the upper and lower sides of the connecting frame (81) at one end far from each other.

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