Automatic multi-shaft drilling machine for automobile parts

Abstract

The invention relates to an automatic multi-shaft drilling machine for automobile parts, and relates to the field of automatic multi-shaft drilling machines, the automatic multi-shaft drilling machine comprises a rack, a conveying device, a clamping device, a multi-shaft drilling device and a driving device, the conveying device and the clamping device are both located below the multi-shaft drilling device, and the middle part of the conveying device and the clamping device are both located in the rack; the multi-shaft drilling device comprises a sliding frame, a transmission lead screw, a sliding motor and a plurality of drilling assemblies, the driving device is used for driving the drilling assemblies to conduct drilling work, the sliding frame is slidably connected with the rack in the direction perpendicular to the conveying direction of the conveying device, and the sliding motor is used for driving the drilling assemblies to slide on the transmission lead screw. The drilling assemblies are slidably connected with the transmission lead screw along the axis of the transmission lead screw, a positioning hole plate is detachably connected into the rack, a positioning device is arranged on the multi-shaft drilling device, and the upper end face of the positioning hole plate is a horizontal plane. The drilling device has the effect of improving the drilling efficiency and the machining precision.

Description

Technical Field

[0001] This application relates to the field of multi-axis automated drilling machines, and in particular to a multi-axis automated drilling machine for automotive parts. Background Technology

[0002] In the automotive parts manufacturing industry, drilling is a critical process, and its efficiency and precision directly impact product quality and production costs. As the automotive industry's requirements for parts manufacturing continue to increase, traditional single-function drilling equipment can no longer meet modern production demands. While single-axis drilling machines are simple in structure and low in cost, they are inefficient and lack precision when processing multiple holes, severely impacting production efficiency. To address this challenge, multi-axis automated drilling machines have gradually become a focus of industry attention. These machines, through integrated design, can simultaneously process multiple holes in a single setup, significantly improving production efficiency and processing accuracy, and driving advancements in automotive parts manufacturing technology.

[0003] Currently, in order to achieve multi-hole machining of automotive parts, the industry generally adopts the following technical means: one is the traditional single-axis drilling machine, which completes the machining of each hole in sequence by manually adjusting the position; another is to combine a robot and a CNC system to achieve automated drilling.

[0004] While single-axis drilling machines have lower equipment costs, they can only process one hole at a time, resulting in extremely low efficiency. Furthermore, frequent adjustments can easily introduce cumulative errors, leading to a decrease in accuracy. Although the combination of a robotic arm and a CNC system offers high flexibility, it also presents greater equipment complexity and requires a higher level of technical skill from the operators. Summary of the Invention

[0005] To improve drilling efficiency and machining accuracy, this application provides a multi-axis automated drilling machine for automotive parts.

[0006] This application provides a multi-axis automated drilling machine for automotive parts, which adopts the following technical solution: An automated multi-axis drilling machine for automotive parts includes a frame, a conveying device, a clamping device, a multi-axis drilling device, and a driving device. The conveying device and clamping device are both located below the multi-axis drilling device. The middle part of the conveying device and the clamping device are both located inside the frame. The clamping device is used to clamp automotive parts. The multi-axis drilling device includes a sliding frame, a transmission screw, a sliding motor, and several drilling components. The driving device drives the drilling components to perform drilling operations. The sliding frame is slidably connected to the frame along a direction perpendicular to the conveying direction of the conveying device. Both ends of the transmission screw are connected to the sliding frame. The sliding motor drives the drilling components to slide on the transmission screw. Several drilling components are slidably connected to the transmission screw along its axis. A positioning plate is detachably connected inside the frame, located between the conveying device and the multi-axis drilling device. The multi-axis drilling device is equipped with a positioning device, and the upper surface of the positioning plate is horizontal.

[0007] By adopting the above technical solution, multi-axis automated drilling of automotive parts has been achieved. The coordination of the frame, conveying device, clamping device, multi-axis drilling device, and drive device enables the automotive parts to be stably conveyed and precisely clamped, while the multi-axis drilling device can perform multiple efficient drilling operations simultaneously at different positions. The sliding frame is slidably connected to the frame along a direction perpendicular to the conveying device, ensuring that the drilling assembly can be flexibly adjusted in the horizontal plane; the cooperation between the transmission screw and the sliding motor enables the drilling assembly to move precisely along the axis of the transmission screw; the design of the positioning plate and positioning device provides a precise positioning reference for drilling, ensuring the accuracy of drilling. The overall solution significantly improves drilling efficiency and accuracy, and reduces the need for manual intervention.

[0008] Optionally, the conveying device includes several evenly arranged conveying rollers, and the clamping device includes a first lifting cylinder, a lifting plate, a first clamping assembly, a second clamping assembly, and several support rods. The first lifting cylinder is fixedly connected to the lower end face of the lifting plate, the lifting plate is located below the conveying rollers, the support rods are located above the lifting plate and slide relative to the lifting plate in the vertical direction, the support rods are located between two adjacent conveying rollers, and the end of the positioning hole plate near the conveying device has the same shape as the upper end face of the automotive parts.

[0009] By adopting the above technical solution, the conveying device uses several evenly arranged conveying rollers to smoothly transport automotive parts and ensure their positioning accuracy during processing. The first lifting cylinder in the clamping device drives the lifting plate to move up and down, cooperating with the vertical sliding of the support rod to achieve precise support and clamping of the automotive parts. The support rod is located between two adjacent conveying rollers, effectively avoiding interference with the conveying device while ensuring clamping stability. The end of the positioning hole plate near the conveying device has the same shape as the upper surface of the automotive part, ensuring accurate positioning of the automotive part during drilling and improving processing accuracy.

[0010] Optionally, both the first clamping assembly and the second clamping assembly include a bidirectional screw and two clamping plates threadedly connected to the bidirectional screw. The two clamping plates are located at the two ends of the bidirectional screw with different screw directions. Both ends of the bidirectional screw are rotatably connected to mounting plates along their own axes. The mounting plates are fixedly connected to the upper surface of the lifting plate. The axes of the bidirectional screws of the first clamping assembly and the second clamping assembly extend horizontally and are perpendicular to each other.

[0011] By adopting the above technical solution, the first and second clamping assemblies achieve stable clamping of automotive parts through a bidirectional screw and two clamping plates. The two clamping plates are located at opposite ends of the bidirectional screw's thread direction, allowing the clamping plates to move synchronously in opposite directions or in opposite directions by rotating the bidirectional screw, thus adapting to automotive parts of different sizes and improving the equipment's versatility. Both ends of the bidirectional screw are fixed to the upper surface of the lifting plate by mounting plates, ensuring structural stability. The bidirectional screw axes of the first and second clamping assemblies extend horizontally and are perpendicular to each other, forming a horizontal clamping effect, further enhancing the stability and accuracy of the clamping.

[0012] Optionally, a second lifting cylinder is fixedly connected to the lower end of the support rod, the second lifting cylinder is fixedly connected to the lifting plate, an elastic ball is rotatably connected to the upper end of the support rod, and a clearance groove for avoiding the clamping plate is provided on the positioning hole plate.

[0013] By adopting the above technical solution, a second lifting cylinder is fixedly connected to the lower end of the support rod, enabling precise height adjustment of the support rod in the vertical direction. This better adapts to automotive parts of different shapes and improves the versatility of the equipment. An elastic ball is rotatably connected to the upper end of the support rod, reducing friction when supporting automotive parts, preventing damage to the surface of the parts, and ensuring a smoother clamping process. A clearance groove is provided on the positioning plate to effectively prevent interference between the clamping plate and the positioning plate during operation.

[0014] Optionally, the drilling assembly includes a sliding seat, a drill bit, and a lifting assembly. The sliding seat is threadedly connected to a transmission screw. Two slide cylinders are fixedly mounted on the lower end face of the sliding seat. Two guide rods with axes parallel to the transmission screw axis are fixedly mounted on the sliding frame. The inner wall of the slide cylinder is coaxially fitted with the outer wall of the guide rod. The lifting assembly is fixedly connected to the sliding seat. The driving assembly is used to drive the drill bit to slide along the drill bit axis and connect with the sliding seat. The lifting assembly is used to drive the drill bit to rotate along the drill bit axis and connect with the sliding seat. The positioning device is fixedly connected to the lower end face of the sliding seat.

[0015] By adopting the above technical solution, the sliding seat of the drilling assembly is threadedly connected to the transmission screw, enabling precise position adjustment of the drilling assembly on the transmission screw to adapt to the needs of different drilling positions. The sliding cylinder fixed to the lower end face of the sliding seat is coaxially fitted with the guide rod on the sliding frame, effectively improving the stability and guiding accuracy of the sliding seat during movement and avoiding possible deviations during drilling. The lifting assembly is fixedly connected to the sliding seat, and the drive assembly drives the drill bit to slide along the drill bit axis, achieving precise control of the drill bit feed. The lifting assembly drives the drill bit to rotate, ensuring efficient and stable drilling operations and improving overall drilling quality and efficiency. The positioning device is fixedly connected to the lower end face of the sliding seat, allowing the positioning device to move synchronously with the sliding seat. When the positioning device detects a hole on the positioning plate, it controls the sliding seat to stop moving.

[0016] Optionally, the drive assembly includes a drive motor, a drive shaft, several worms and several worm wheels, with each worm and worm wheel meshing in a corresponding manner. The drive motor is fixedly connected to the sliding frame and coaxially fixedly connected to the drive shaft. The worm is sleeved on the outside of the drive shaft and slidably connected to the drive shaft along its own axis. Support plates are sleeved on both ends of the worm, and the support plates are fixedly connected to the sliding seat. The worm is rotatably connected to the support plates along its own axis. A connecting cylinder is coaxially fixedly connected to the worm wheels. A fixed plate is fixedly provided on one side of the sliding seat. The end of the connecting cylinder away from the worm wheel is fixedly connected to the sliding plate. A first sliding strip is fixedly provided on the outer wall of the drill bit. A first sliding groove is provided on the inner wall of the connecting cylinder. A second sliding groove is provided on the outer wall of the drive shaft. A second sliding strip is fixedly provided on the inner wall of the worm.

[0017] By adopting the above technical solution, the drive motor is fixed on the sliding frame, providing stable power to drive several worm gears to rotate. The worm gears mesh with the worm wheels one-to-one, transmitting the rotational motion to the connecting cylinder, enabling the connecting cylinder to drive the drill bit to achieve precise axial movement. The fixed plate on one side of the sliding seat further enhances structural stability, ensuring no offset during transmission. The first sliding strip on the outer wall of the drill bit engages with the first sliding groove on the inner wall of the connecting cylinder, effectively restricting the drill bit's degrees of freedom, ensuring it can only slide axially, thus improving drilling accuracy and machining quality. The engagement of the second sliding strip on the inner wall of the worm gear and the second sliding groove on the outer wall of the drive shaft allows the worm gear to both slide on the drive shaft and rotate with it.

[0018] Optionally, the lifting assembly includes a third lifting cylinder and a connecting plate. The cylinder body of the third lifting cylinder is fixedly connected to the sliding seat, and the telescopic end of the third lifting cylinder is fixedly connected to the connecting plate. The drill bit is rotatably connected to the connecting plate along its own axis. Two limiting rings are fixedly provided on the outer wall of the drill bit. The connecting plate is located between the two limiting rings, and the upper and lower end faces of the connecting plate abut against the two limiting rings respectively.

[0019] By adopting the above technical solution, the drill bit can achieve precise lifting and lowering control. The third lifting cylinder allows the drill bit to move precisely up and down along its own axis, thus ensuring the controllability of the drilling depth. The cooperation between the connecting plate and the limit ring further improves the stability of the drill bit during rotation, preventing the drill bit from shaking during operation and ensuring the quality and accuracy of the drilling.

[0020] Optionally, the sliding motor is fixedly connected to the sliding seat, and both ends of the transmission screw are fixedly connected to the sliding frame. The sliding seat is provided with a first bevel gear and a second bevel gear that mesh with each other. The first bevel gear is fixedly connected to the sliding motor on the same axis, and the second bevel gear is fixedly connected to a threaded cylinder on the same axis. The threaded cylinder is rotatably connected to the sliding seat along its own axis.

[0021] By adopting the above technical solution, the fixed connection between the sliding motor and the sliding seat allows the sliding motor to move along the axis of the transmission screw together with the sliding seat, thereby reducing additional transmission mechanisms, simplifying the overall structure, and improving transmission efficiency. The design of fixing both ends of the transmission screw to the frame ensures the stability of the transmission screw, avoiding deformation or loosening caused by vibration or uneven force during long-term operation. The first and second bevel gears inside the sliding seat mesh with each other, achieving effective power transmission. The coaxial fixed connection between the first bevel gear and the sliding motor ensures the directness of power input, while the threaded cylinder coaxially fixed to the second bevel gear converts rotational motion into linear motion, enabling the sliding seat to move smoothly along the transmission screw, improving the accuracy and reliability of drilling position adjustment. Fixing a sliding motor to each sliding seat allows each sliding seat to slide and remain stationary independently, enabling each sliding seat to stop the drill bit at the required drilling position. This allows for different travel distances for each sliding seat, and the sliding seat can slide to any desired drilling position.

[0022] Optionally, the sliding motor is fixedly connected to the frame, and the sliding motor is coaxially fixedly connected to the transmission screw. Both ends of the transmission screw are rotatably connected to the frame along their own axes. The sliding seat has a through hole for the transmission screw to pass through. The sliding seat is fitted with a roller that cooperates with the transmission screw. The roller is slidably connected to the sliding seat along its own axis. The outer wall of the guide rod has a stop groove along its own axis. The sliding cylinder is slidably connected to a stop block along its own radial direction.

[0023] By adopting the above technical solution, the sliding motor is fixedly connected to the frame and directly drives the transmission screw to rotate, ensuring stable and reliable power transmission of the multi-axis drilling device. The sliding seat, through the cooperation of rollers and the transmission screw, effectively reduces the movement resistance of the sliding seat on the transmission screw, while ensuring smooth movement of the sliding seat. The stop groove on the outer wall of the guide rod cooperates with the stop block inside the slide cylinder to prevent the sliding seat from sliding, thereby positioning the sliding seat and improving the operating accuracy and working efficiency of the multi-axis drilling device. This allows each sliding seat to travel a different distance, and the sliding seat can slide to any position requiring drilling.

[0024] Optionally, the roller is coaxially inserted with a rod, the roller is rotatably connected to the rod along its own axis, the end of the rod away from the roller passes through the sliding seat and is fixedly connected to a fourth telescopic cylinder, the fourth telescopic cylinder is fixedly connected to the sliding seat, two first racks are evenly fixed along the circumference of the side wall of the rod outside the sliding seat, and a second rack is fixed on the side of each stop block near the transmission screw, a synchronous gear meshes between the first rack and the second rack, and the synchronous gear is rotatably connected to the fixed seat along its own axis.

[0025] By adopting the above technical solution, the cooperation between the roller and the insert rod enables stable transmission of the roller on the transmission screw. Simultaneously, the fourth telescopic cylinder adjusts the distance between the roller and the transmission screw, thereby achieving the movement and positioning of the sliding seat. The first and second racks move in opposite directions on both sides of the synchronous gear, ensuring that the stop block and the roller slide in opposite directions. This allows the stop block to insert into the stop groove simultaneously with the roller disengaging from the transmission screw, and the stop block presses against the guide rod to position the sliding seat.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The coordinated operation of the frame, conveying device, clamping device, multi-axis drilling device, and drive device enables the stable conveying and precise clamping of automotive parts. Simultaneously, the multi-axis drilling device can perform multiple efficient drilling operations at different positions. The sliding frame is slidably connected to the frame along a direction perpendicular to the conveying device, ensuring flexible adjustment of the drilling assembly's position in the horizontal plane. The cooperation between the transmission screw and the sliding motor enables precise movement of the drilling assembly along the transmission screw axis. The design of the positioning plate and positioning device provides a precise positioning reference for drilling, ensuring accuracy. The overall solution significantly improves drilling efficiency and accuracy while reducing the need for manual intervention. 2. The conveying device employs several evenly arranged conveyor rollers, enabling stable transport of automotive parts and ensuring their positioning accuracy during processing. The first lifting cylinder in the clamping device drives the lifting plate to move up and down, coordinating with the vertical sliding of the support rod to achieve precise support and clamping of the automotive parts. The support rod is located between two adjacent conveyor rollers, effectively avoiding interference with the conveying device while ensuring clamping stability. The end of the positioning hole plate near the conveying device has the same shape as the upper surface of the automotive part, ensuring accurate positioning of the automotive part during drilling and improving processing precision. 3. The first and second clamping assemblies achieve stable clamping of automotive parts through a bidirectional screw and two clamping plates. The two clamping plates are located at opposite ends of the bidirectional screw's thread direction, allowing the clamping plates to move synchronously in opposite directions or in opposite directions by rotating the bidirectional screw. This adapts to automotive parts of different sizes and improves the equipment's versatility. Both ends of the bidirectional screw are fixed to the upper surface of the lifting plate by mounting plates, ensuring structural stability. The bidirectional screw axes of the first and second clamping assemblies extend horizontally and are perpendicular to each other, forming a horizontal clamping effect, further enhancing clamping stability and accuracy. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the multi-axis automated drilling machine for automotive parts, as shown in Example 1.

[0028] Figure 2 This is a schematic diagram of the clamping device.

[0029] Figure 3 This is a schematic diagram of the positioning hole plate.

[0030] Figure 4 This is a schematic diagram of the multi-axis drilling device and drive device in Example 1.

[0031] Figure 5 yes Figure 4 An enlarged schematic diagram of part A in the middle.

[0032] Figure 6 yes Figure 4 A cross-sectional view of the middle sliding seat.

[0033] Figure 7 This is a schematic diagram of the multi-axis drilling device and drive device in Embodiment 2.

[0034] Figure 8 yes Figure 7 A cross-sectional view of the middle sliding seat.

[0035] Explanation of reference numerals in the attached drawings: 100, Automotive parts; 1, Frame; 11, Positioning plate; 111, Clearance groove; 2, Conveying device; 21, Conveying roller; 3, Clamping device; 31, First lifting cylinder; 32, Lifting plate; 321, Mounting plate; 322, Second lifting cylinder; 33, First clamping assembly; 331, Bidirectional screw; 332, Clamping plate; 34, Second clamping assembly; 35, Support rod; 351, Elastic ball; 4, Multi-axis drilling device; 41, Sliding frame; 42, Transmission screw; 43, Sliding motor; 44, Drilling assembly; 441, Sliding seat; 4411, First bevel gear; 4412, Second bevel gear; 4413, Threaded cylinder; 442 4421. Drill bit; 4422. First sliding bar; 4423. Limiting ring; 4444. Lifting assembly; 4431. Third lifting cylinder; 4432. Connecting plate; 444. Slide cylinder; 4441. Stop block; 4442. Second rack; 445. Fixing plate; 446. Roller; 4461. Insert rod; 4462. First rack; 447. Fourth telescopic cylinder; 448. Synchronous gear; 45. Positioning device; 46. Guide rod; 461. Stop groove; 5. Drive device; 51. Drive motor; 52. Drive shaft; 521. Second slide groove; 53. Worm gear; 531. Second sliding bar; 532. Support plate; 54. Worm wheel; 55. Connecting cylinder; 551. First slide groove. Detailed Implementation

[0036] The present application will be further described in detail below with reference to all the accompanying drawings.

[0037] Example 1 This embodiment discloses a multi-axis automated drilling machine for automotive parts.

[0038] Reference Figure 1 An automated multi-axis drilling machine for automotive parts includes a frame 1, a conveying device 2, a clamping device 3, a multi-axis drilling device 4, and a drive device 5. The conveying device 2 consists of several evenly arranged conveying rollers 21. The middle part of the conveying device 2 is located inside the frame 1 and below the multi-axis drilling device 4. An automotive part 100 is placed on the conveying roller 21 on one side of the conveying device 2, and then the automotive part 100 to be drilled is conveyed to the area below the multi-axis drilling device 4. The clamping device 3 is also located inside the frame 1 and below the multi-axis drilling device 4. The clamping device 3 clamps, centers, and positions the automotive part 100 to be drilled. The drive device 5 drives the multi-axis drilling device 4 to perform drilling. After drilling is completed, the conveying device 2 conveys the processed automotive part 100 to the next process.

[0039] Reference Figure 2The clamping device 3 includes a first lifting cylinder 31, a lifting plate 32, a first clamping assembly 33, a second clamping assembly 34, and several support rods 35. The lifting plate 32 is located below the conveying roller 21. The first lifting cylinder 31 is fixedly connected to the lower end face of the lifting plate 32 and is used to drive the lifting plate 32 to move up and down. There can be four first lifting cylinders 31, located at the four corners of the lifting plate 32. The first clamping assembly 33 and the second clamping assembly 34 both include a bidirectional screw 331 and two clamping plates 332 threadedly connected to the bidirectional screw 331. Both bidirectional screws 331 are driven by a motor to achieve stable clamping of the automotive parts 100. The two clamping plates 332 are located at the two ends of the bidirectional screw 331 with different thread directions. By rotating the bidirectional screw 331, the clamping plates 332 can move synchronously in opposite directions or in opposite directions, thereby adapting to automotive parts 100 of different sizes and improving the versatility of the equipment. Both ends of the bidirectional screw 331 are rotatably connected to mounting plates 321 along their own axes. The mounting plates 321 are fixedly connected to the upper surface of the lifting plate 32 to ensure structural stability. The bidirectional screw 331 of the first clamping assembly 33 is located above the bidirectional screw 331 of the second clamping assembly 34, and the axes of the two bidirectional screws 331 extend horizontally and are perpendicular to each other, forming a horizontal clamping effect, further enhancing the stability and accuracy of clamping.

[0040] Reference Figure 2 The support rod 35 is located above the lifting plate 32, and a second lifting cylinder 322 is fixedly connected to the lower end of the support rod 35. The second lifting cylinder 322 is fixedly connected to the lifting plate 32. The second lifting cylinder 322 pushes the support rod 35 to slide vertically relative to the lifting plate 32. The lifting heights of several support rods 35 can be different, thereby better adapting to different shapes of automotive parts 100 and improving the versatility of the equipment. An elastic ball 351 is rotatably connected to the upper end of the support rod 35, which can reduce friction when supporting the automotive parts 100, avoid damage to the surface of the automotive parts 100, and ensure a more stable clamping process. A positioning hole plate 11 is detachably connected inside the frame 1. The positioning hole plate 11 is located between the conveying device 2 and the multi-axis drilling device 4, and a suitable positioning hole plate 11 can be replaced according to production needs. The positioning hole plate 11 has a clearance groove 111 for avoiding the clamping plate 332, effectively preventing the clamping plate 332 from interfering with the positioning hole plate 11 during operation. The support rod 35 is located between two adjacent conveyor rollers 21, effectively avoiding interference with the conveying device 2.

[0041] Reference Figure 2 and Figure 3A positioning plate 11 is detachably connected inside the frame 1. A screw is fixedly connected to the upper surface of the positioning plate 11, passing through a connecting rod on the frame 1 and fastened with a nut. The positioning plate 11 is located between the conveying device 2 and the multi-axis drilling device 4. The end of the positioning plate 11 closest to the conveying device 2 has the same shape as the upper surface of the automotive part 100. The second lifting cylinder 322 pushes the support rod 35 to rise, and the support rod 35 drives the automotive part 100 to rise, so that the upper surface of the automotive part 100 is completely in contact with the lower surface of the positioning plate 11, ensuring accurate positioning of the automotive part 100 during the drilling process and improving processing accuracy. Four clamping plates 332 clamp the four sides of the automotive part 100 respectively. The first lifting cylinder 31 drives the clamping plates 332 and the automotive part 100 to rise. When the upper end face of the automotive part 100 abuts against the lower end face of the positioning hole plate 11, the clamping plate 332 is inserted into the relief groove 111. The bidirectional screw 331 rotates in the opposite direction, and the clamping plate 332 moves away from the automotive part 100 and slides in the relief groove 111. At this time, under the compression of the elastic ball 351, the end face of the automotive part 100 abuts against the lower end face of the positioning hole plate 11.

[0042] Reference Figure 4 and Figure 5 The multi-axis drilling device 4 includes a sliding frame 41, a transmission screw 42, a sliding motor 43, and several drilling assemblies 44. Each drilling assembly 44 includes a sliding seat 441, a drill bit 442, and a lifting assembly 443. The lifting assembly 443 includes a third lifting cylinder 4431 and a connecting plate 4432. The lifting assembly 443 drives the drill bit 442 to rotate along its axis and connect to the sliding seat 441. The sliding motor 43 drives the drilling assembly 44 to slide along the axis of the transmission screw 42. The specifications and dimensions of the drill bit 442 in each drilling assembly 44 can be different or the same to accommodate drilling requirements of different hole diameters.

[0043] Reference Figure 4 The sliding frame 41 is slidably connected to the frame 1 along a direction perpendicular to the conveying direction of the conveying device 2, driving several drilling assemblies 44 to move synchronously along the same direction. Specifically, a motor can drive a lead screw to rotate, and the lead screw and sliding frame 41 are threadedly connected, thereby causing the sliding frame 41 to slide. Several drilling assemblies 44 are slidably connected to the transmission lead screw 42 along the axis of the transmission lead screw 42, realizing the movement of several drilling assemblies 44 along the conveying direction of the conveying device 2.

[0044] Reference Figure 5 Two sliding cylinders 444 are fixedly provided on the lower end face of the sliding seat 441, and two guide rods 46 with axes parallel to the axis of the transmission screw 42 are fixedly provided on the sliding frame 41. The inner wall of the sliding cylinder 444 and the outer wall of the guide rod 46 are coaxially fitted, which effectively improves the stability and guiding accuracy of the sliding seat 441 during movement and avoids possible deviation during drilling.

[0045] Reference Figure 4 and Figure 5 The drive assembly includes a drive motor 51, a drive shaft 52, several worm gears 53, and several worm wheels 54. The drive assembly drives the drill bit 442 to slide along its axis against the sliding seat 441. The drive motor 51 is coaxially and fixedly connected to the drive shaft 52, driving the drive shaft 52 to rotate. The worm gears 53 are sleeved on the outside of the drive shaft 52 and slidably connected to it along their own axes. Support plates 532 are sleeved at both ends of the worm gears 53, and the support plates 532 are fixedly connected to the sliding seat 441. The worm gears 53 are rotatably connected to the support plates 532 along their own axes. A connecting cylinder 55 is coaxially fixedly connected to the worm gear 54. A fixed plate 445 is fixedly provided on one side of the sliding seat 441. The end of the connecting cylinder 55 away from the worm gear 54 is fixedly connected to the sliding plate. Several worms 53 and several worm gears 54 mesh in a corresponding manner. The drive motor 51 is fixedly connected to the sliding frame 41, transmitting the rotational motion to the connecting cylinder 55, so that the connecting cylinder 55 drives the drill bit 442 to achieve precise axial movement. A first sliding strip 4421 is fixedly provided on the outer wall of the drill bit 442, and a first sliding groove 551 is opened on the inner wall of the connecting cylinder 55, which effectively restricts the degree of freedom of the drill bit 442, ensuring that it can only slide along the axial direction, thereby improving drilling accuracy and processing quality. The cylinder body of the third lifting cylinder 4431 is fixedly connected to the sliding seat 441, and the telescopic end of the third lifting cylinder 4431 is fixedly connected to the connecting plate 4432. The drill bit 442 is rotatably connected to the connecting plate 4432 along its own axis. Two limiting rings 4422 are fixedly provided on the outer wall of the drill bit 442. The connecting plate 4432 is located between the two limiting rings 4422, and the upper and lower end faces of the connecting plate 4432 abut against the two limiting rings 4422 respectively. The cooperation between the connecting plate 4432 and the limiting rings 4422 further improves the stability of the drill bit 442 during rotation, prevents the drill bit 442 from sliding up and down during operation, and ensures the quality and accuracy of drilling. A second sliding groove 521 is opened on the outer wall of the drive shaft 52, and a second sliding strip 531 is fixedly provided on the inner wall of the worm gear 53. The cooperation between the second slide bar 531 on the inner wall of the worm 53 and the second slide groove 521 on the outer wall of the drive shaft 52 allows the worm 53 to slide on the drive shaft 52 and rotate with the drive shaft 52.

[0046] Reference Figure 1 and Figure 5 The multi-axis drilling device 4 is equipped with a positioning device 45, which is fixedly connected to the lower end face of the sliding seat 441. The positioning device 45 can move synchronously with the sliding seat 441. When the positioning device 45 detects a hole on the positioning hole plate 11, it controls the sliding seat 441 to stop moving. At the same time, the distance from the upper end face to the lower end face of the positioning hole plate 11 is different at different positions, and the drilling depth is also different. The upper end face of the positioning hole plate 11 is a horizontal plane. The positioning device 45 uses infrared or laser positioning to detect the depth of the hole on the positioning hole plate 11, so as to control the downward distance of the drill bit 442.

[0047] Reference Figure 5 and Figure 6 Both ends of the transmission screw 42 are fixedly connected to the sliding frame 41, ensuring the stability of the transmission screw 42 and avoiding deformation or loosening caused by vibration or uneven force during long-term operation. The sliding motor 43 is fixedly connected to the sliding seat 441, allowing the sliding motor 43 to move along the axis of the transmission screw 42 together with the sliding seat 441, thereby reducing the need for additional transmission mechanisms, simplifying the overall structure and improving transmission efficiency. The sliding seat 441 is provided with a first bevel gear 4411 and a second bevel gear 4412 that mesh with each other. The first bevel gear 4411 is coaxially fixedly connected to the sliding motor 43, and the second bevel gear 4412 is coaxially fixedly connected to a threaded cylinder 4413, which is rotatably connected to the sliding seat 441 along its own axis. The first bevel gear 4411 is coaxially fixedly connected to the sliding motor 43, ensuring direct power input. The threaded cylinder 4413, coaxially fixedly connected to the second bevel gear 4412, converts rotational motion into linear motion, allowing the sliding seat 441 to move smoothly along the transmission screw 42, improving the accuracy and reliability of drilling position adjustment. Each sliding seat 441 is fixed with a sliding motor 43, enabling each sliding seat 441 to slide and remain stationary independently. This allows each sliding seat 441 to drive the drill bit 442 to stop at the desired drilling position. The travel distance of each sliding seat 441 can be different, and the sliding seat 441 can slide to any desired drilling position.

[0048] The implementation principle of a multi-axis automated drilling machine for automotive parts according to an embodiment of this application is as follows: the cooperation of the frame 1, conveying device 2, clamping device 3, multi-axis drilling device 4, and drive device 5 enables the automotive parts 100 to be stably conveyed and precisely clamped, while the multi-axis drilling device 4 can perform multiple efficient drilling operations simultaneously at different positions. The sliding frame 41 is slidably connected to the frame 1 along a direction perpendicular to the conveying direction of the conveying device 2, ensuring that the drilling assembly 44 can be flexibly adjusted in the horizontal plane; the cooperation between the transmission screw 42 and the sliding motor 43 enables the precise movement of the drilling assembly 44 along the axis of the transmission screw 42; when several drilling assemblies 44 complete a row of drilling, the sliding frame 41 drives several drilling assemblies 44 to slide to the drilling position of the next row; the design of the positioning plate 11 and the positioning device 45 provides a precise positioning reference for drilling, ensuring the accuracy of drilling. The overall solution significantly improves drilling efficiency and accuracy, and reduces the need for manual intervention.

[0049] Example 2 The difference between this embodiment and embodiment 1 is that the connection relationship of the sliding motor 43 and the structure of the sliding seat 441 for sliding are different.

[0050] Reference Figure 7 and Figure 8The sliding motor 43 is fixedly connected to the frame 1 and coaxially fixedly connected to the transmission screw 42. Both ends of the transmission screw 42 are rotatably connected to the frame 1 along their own axes, ensuring stable and reliable power transmission of the multi-axis drilling device 4. The sliding seat 441 has a through hole for the transmission screw 42 to pass through. The sliding seat 441 is fitted with rollers 446 that cooperate with the transmission screw 42. The sliding seat 441 cooperates with the transmission screw 42 through the rollers 446, which can effectively reduce the movement resistance of the sliding seat 441 on the transmission screw 42, while ensuring the smooth movement of the sliding seat 441. The rollers 446 are slidably connected to the sliding seat 441 along their own axis. The outer wall of the guide rod 46 is provided with a stop groove 461 along its own axis. The slide cylinder 444 is slidably connected with a stop block 4441 along its own radial direction. The stop groove 461 on the outer wall of the guide rod 46 cooperates with the stop block 4441 inside the slide cylinder 444 to prevent the sliding seat 441 from sliding, thereby positioning the sliding seat 441 and improving the operating accuracy and working efficiency of the multi-axis drilling device 4. This allows each sliding seat 441 to travel a different distance, and the sliding seat 441 can slide to any position where drilling is required.

[0051] Reference Figure 7 and Figure 8 A roller 446 is coaxially inserted with a rod 4461. The roller 446 is rotatably connected to the rod 4461 along its own axis. The end of the rod 4461 away from the roller 446 passes through the sliding seat 441 and is fixedly connected to a fourth telescopic cylinder 447. The fourth telescopic cylinder 447 is fixedly connected to the sliding seat 441. Two first racks 4462 are evenly fixed along the circumference of the side wall of the rod 4461 located outside the sliding seat 441. A second rack 4442 is fixed on the side of each stop block 4441 near the transmission screw 42. A synchronous gear 448 meshes between the first racks 4462 and the second racks 4442. The synchronous gear 448 is rotatably connected to the fixed seat along its own axis. The fourth telescopic cylinder 447 can adjust the distance between the roller 446 and the transmission screw 42, thereby realizing the movement and positioning of the sliding seat 441. The first rack 4462 and the second rack 4442 move in opposite directions on both sides of the synchronous gear 448, ensuring that the stop block 4441 and the roller 446 slide in opposite directions. This allows the stop block 4441 to insert into the stop groove 461 simultaneously with the roller 446 disengaging from the transmission screw 42. The stop block 4441 then presses against the guide rod 46 to position the sliding seat 441. This allows the roller 446 and the stop block 4441 to slide in opposite directions. When the roller 446 is inserted into the transmission screw 42, the stop block 4441 disengages from the stop groove 461; conversely, when the roller 446 disengages from the transmission screw 42, the stop block 4441 extends into the stop groove 461 and abuts against the guide rod 46.

[0052] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-axis automated drilling machine for automotive parts, characterized in that: The device includes a frame (1), a conveying device (2), a clamping device (3), a multi-axis drilling device (4), and a driving device (5). The conveying device (2) and the clamping device (3) are both located below the multi-axis drilling device (4). The middle part of the conveying device (2) and the clamping device (3) are both located inside the frame (1). The clamping device (3) is used to clamp the automotive parts (100). The multi-axis drilling device (4) includes a sliding frame (41), a transmission screw (42), a sliding motor (43), and several drilling components (44). The driving device (5) is used to drive the several drilling components (44) to perform drilling work. 1) The transmission screw (42) is slidably connected to the frame (1) along the conveying direction perpendicular to the conveying device (2). Both ends of the transmission screw (42) are connected to the sliding frame (41). The sliding motor (43) is used to drive the drilling assembly (44) to slide on the transmission screw (42). Several drilling assemblies (44) are slidably connected to the transmission screw (42) along the axis of the transmission screw (42). A positioning hole plate (11) is detachably connected inside the frame (1). The positioning hole plate (11) is located between the conveying device (2) and the multi-axis drilling device (4). The multi-axis drilling device (4) is equipped with a positioning device (45). The upper surface of the positioning hole plate (11) is horizontal.

2. The multi-axis automated drilling machine for automotive parts according to claim 1, characterized in that: The conveying device (2) includes several evenly arranged conveying rollers (21), and the clamping device (3) includes a first lifting cylinder (31), a lifting plate (32), a first clamping assembly (33), a second clamping assembly (34) and several support rods (35). The first lifting cylinder (31) is fixedly connected to the lower end face of the lifting plate (32). The lifting plate (32) is located below the conveying rollers (21). The support rods (35) are located above the lifting plate (32) and slide relative to the lifting plate (32) in the vertical direction. The support rods (35) are located between two adjacent conveying rollers (21). The end of the positioning hole plate (11) near the conveying device (2) has the same shape as the upper end face of the automotive parts (100).

3. The multi-axis automated drilling machine for automotive parts according to claim 2, characterized in that: The first clamping assembly (33) and the second clamping assembly (34) both include a bidirectional screw (331) and two clamping plates (332) threadedly connected to the bidirectional screw (331). The two clamping plates (332) are located at the two ends of the bidirectional screw (331) with different thread directions. Both ends of the bidirectional screw (331) are rotatably connected to mounting plates (321) along their own axes. The mounting plates (321) are fixedly connected to the upper end face of the lifting plate (32). The axes of the bidirectional screws (331) of the first clamping assembly (33) and the second clamping assembly (34) extend horizontally and are perpendicular to each other.

4. The multi-axis automated drilling machine for automotive parts according to claim 2, characterized in that: The lower end of the support rod (35) is fixedly connected to a second lifting cylinder (322), the second lifting cylinder (322) is fixedly connected to the lifting plate (32), the upper end of the support rod (35) is rotatably connected to an elastic ball (351), and the positioning hole plate (11) is provided with a clearance groove (111) for avoiding the clamping plate (332).

5. The multi-axis automated drilling machine for automotive parts according to claim 1, characterized in that: The drilling assembly (44) includes a sliding seat (441), a drill bit (442), and a lifting assembly (443). The sliding seat (441) is threadedly connected to the transmission screw (42). Two sliding cylinders (444) are fixedly provided on the lower end face of the sliding seat (441). Two guide rods (46) with axes parallel to the axis of the transmission screw (42) are fixedly provided on the sliding frame (41). The inner wall of the sliding cylinder (444) is coaxially fitted with the outer wall of the guide rod (46). The lifting assembly (443) is fixedly connected to the sliding seat (441). The driving assembly is used to drive the drill bit (442) to slide along the axis of the drill bit (442) and the sliding seat (441). The lifting assembly (443) is used to drive the drill bit (442) to rotate along the axis of the drill bit (442) and the sliding seat (441). The positioning device (45) is fixedly connected to the lower end face of the sliding seat (441).

6. The multi-axis automated drilling machine for automotive parts according to claim 5, characterized in that: The drive assembly includes a drive motor (51), a drive shaft (52), several worms (53) and several worm wheels (54). The worms (53) and worm wheels (54) are meshed one-to-one. The drive motor (51) is fixedly connected to the sliding frame (41). The drive motor (51) is coaxially fixedly connected to the drive shaft (52). The worms (53) are sleeved on the outside of the drive shaft (52) and slidably connected to the drive shaft (52) along their own axis. Support plates (532) are sleeved on both ends of the worms (53). The support plates (532) are connected to the sliding seat (441). The worm (53) is rotatably connected to the support plate (532) along its own axis. The worm wheel (54) is coaxially fixedly connected to the connecting cylinder (55). A fixed plate (445) is fixedly provided on one side of the sliding seat (441). The end of the connecting cylinder (55) away from the worm wheel (54) is fixedly connected to the sliding plate. A first sliding strip (4421) is fixedly provided on the outer wall of the drill bit (442). A first sliding groove (551) is opened on the inner wall of the connecting cylinder (55). A second sliding groove (521) is opened on the outer wall of the drive shaft (52). A second sliding strip (531) is fixedly provided on the inner wall of the worm (53).

7. The multi-axis automated drilling machine for automotive parts according to claim 5, characterized in that: The lifting assembly (443) includes a third lifting cylinder (4431) and a connecting plate (4432). The cylinder body of the third lifting cylinder (4431) is fixedly connected to the sliding seat (441). The telescopic end of the third lifting cylinder (4431) is fixedly connected to the connecting plate (4432). The drill bit (442) is rotatably connected to the connecting plate (4432) along its own axis. Two limiting rings (4422) are fixedly provided on the outer side wall of the drill bit (442). The connecting plate (4432) is located between the two limiting rings (4422), and the upper and lower end faces of the connecting plate (4432) abut against the two limiting rings (4422) respectively.

8. The multi-axis automated drilling machine for automotive parts according to claim 5, characterized in that: The sliding motor (43) is fixedly connected to the sliding seat (441), and both ends of the transmission screw (42) are fixedly connected to the sliding frame (41). The sliding seat (441) is provided with a first bevel gear (4411) and a second bevel gear (4412) that mesh with each other. The first bevel gear (4411) is coaxially fixedly connected to the sliding motor (43), and the second bevel gear (4412) is coaxially fixedly connected to a threaded cylinder (4413). The threaded cylinder (4413) is rotatably connected to the sliding seat (441) along its own axis.

9. A multi-axis automated drilling machine for automotive parts according to claim 5, characterized in that: The sliding motor (43) is fixedly connected to the frame (1), and the sliding motor (43) is coaxially fixedly connected to the transmission screw (42). Both ends of the transmission screw (42) are rotatably connected to the frame (1) along their own axis. The sliding seat (441) has a through hole for the transmission screw (42) to pass through. The sliding seat (441) is inserted with a roller (446) that cooperates with the transmission screw (42). The roller (446) is slidably connected to the sliding seat (441) along its own axis. The outer wall of the guide rod (46) is provided with a stop groove (461) along its own axis. The slide cylinder (444) is slidably connected with a stop block (4441) along its own radial direction.

10. A multi-axis automated drilling machine for automotive parts according to claim 9, characterized in that: The roller (446) is coaxially inserted with a rod (4461). The roller (446) is rotatably connected to the rod (4461) along its own axis. The end of the rod (4461) away from the roller (446) passes through the sliding seat (441) and is fixedly connected to a fourth telescopic cylinder (447). The fourth telescopic cylinder (447) is fixedly connected to the sliding seat (441). Two first racks (4462) are evenly fixed on the side wall of the rod (4461) outside the sliding seat (441) along its own circumference. A second rack (4442) is fixed on the side of each stop block (4441) near the transmission screw (42). A synchronous gear (448) meshes between the first rack (4462) and the second rack (4442). The synchronous gear (448) is rotatably connected to the fixed seat along its own axis.

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