Foundation pile end plate pin hole processing production line

Abstract

This invention discloses a production line for processing pin holes in foundation pile end plates. The production line includes a transfer mechanism, a loading lifting platform, a positioning hole processing machine, a finished product inspection machine, a pin hole processing machine, and a unloading lifting platform. The transfer mechanism includes a robotic arm assembly and a robotic arm mounting frame. The main body of the robotic arm mounting frame is a beam-type guide rail, and the robotic arm assembly is slidably mounted on the beam-type guide rail via a sliding assembly. The loading lifting platform, positioning hole processing machine, pin hole processing machine, finished product inspection machine, and unloading lifting platform are sequentially arranged below the transfer mechanism along the extension direction of the beam-type guide rail. The transfer mechanism enables the transfer of workpieces between different machines without manual intervention, improving production efficiency and reducing labor costs. The sequential arrangement of each machine along the beam-type guide rail results in a small footprint and high space utilization.

Description

Technical Field

[0001] This invention relates to the field of automated production and processing technology for foundation pile end plates, and in particular to a production line for processing pin holes in foundation pile end plates. Background Technology

[0002] Chinese invention patent CN 218562322 U discloses a quick-connect structure for prestressed concrete pull-out piles, comprising two interlocking end plates. Several semi-pin holes are evenly distributed around the outer circumference of the abutting surfaces of the end plates. Corresponding semi-pin holes are joined to form pin holes, and pins are inserted into these pin holes. The two sides of the pins engage with the corresponding semi-pin holes, connecting the two end plates. The abutting surfaces of the end plates also have locking holes. After the two end plates are joined, corresponding locking holes on the end plates are connected by positioning pins. Each pin includes two semi-pin posts, with one side of their outer circumferences interconnected. This invention is reasonably designed, solving the problem of potential safety hazards due to welding failure, and is easy to install and construct. However, this invention patent only discloses the implementation method of the end plate connection and does not mention the specific processing method for the pin holes in the matching pile end plates.

[0003] Current methods for machining pin holes in pile end plates are mostly decentralized, requiring manual transfer of the end plates between different processing equipment. This not only incurs significant labor costs but also easily leads to positioning deviations during transfer, affecting the machining accuracy of the pin holes. Furthermore, existing processing equipment is mostly single-function, resulting in low processing efficiency and failing to meet the demands of large-scale pile production. In addition, some processing equipment lacks effective inspection mechanisms, making it difficult to monitor the quality of the pin holes in real time, potentially leading to defective products entering subsequent processes. Therefore, there is an urgent need for an integrated, highly automated production line for machining pin holes in pile end plates with high precision and efficiency to address the shortcomings of existing technologies. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a production line for processing pin holes in foundation pile end plates, thereby resolving the issues of low processing efficiency and high labor costs in current foundation pile end plate pin hole processing.

[0005] This invention is achieved through the following technical solution: a production line for processing pin holes in foundation pile end plates, characterized in that it includes a transfer mechanism, a loading lifting platform, a positioning hole processing machine, a pin hole processing machine, a finished product inspection machine, and a unloading lifting platform; the transfer mechanism includes a robotic arm assembly and a robotic arm mounting frame, the main body of the robotic arm mounting frame is a beam-type guide rail, the robotic arm assembly is slidably mounted on the beam-type guide rail via a sliding assembly, and the loading lifting platform, the positioning hole processing machine, the pin hole processing machine, the finished product inspection machine, and the unloading lifting platform are sequentially arranged below the transfer mechanism along the extension direction of the beam-type guide rail; The positioning hole processing machine includes a positioning hole processing machine base, a positioning hole processing table, a centering and limiting mechanism, and a positioning hole drilling mechanism. The positioning hole processing table is rotatably mounted at the center of the positioning hole processing machine base via a rotating indexing head. The centering and limiting mechanism is located at the top periphery of the positioning hole processing table. The positioning hole drilling mechanism is located below the positioning hole processing table, with its drill bit facing upwards. The pin hole processing machine includes a pin hole processing machine base, a pin hole processing table, and several pin hole drilling mechanisms. The pin hole processing table is rotatably mounted at the center of the pin hole processing machine base via a rotating base. The several pin hole drilling mechanisms are arranged around the pin hole processing table, and the drill bits of the pin hole drilling mechanisms are horizontally positioned towards the top center of the pin hole processing table.

[0006] The finished product testing machine includes a testing machine base, and the top of the testing machine base is provided with a plurality of testing mechanisms that correspond one-to-one with the side half pin holes to be processed. Furthermore, several columns for supporting the beam-type guide rail are provided below the beam-type guide rail; a transfer robotic arm is vertically slidably mounted on the sliding assembly; an electromagnetic adsorption assembly is installed at the end of the transfer robotic arm, the main body of the electromagnetic adsorption assembly is a suction cup mounting plate, a rotating air jet plate for cleaning the powder on the top of the workpiece is installed at the center of the suction cup mounting plate, and several electromagnet suction cups for adsorbing the workpiece are arranged around the bottom of the suction cup mounting plate.

[0007] Furthermore, the centering and limiting mechanism includes two centering platforms symmetrically arranged on both sides of the positioning hole machining table, a propulsion cylinder for driving the two centering platforms to feed inward, and a push rod. The output end of the propulsion cylinder is fixedly connected to the midpoint of the push rod. The two ends of the push rod are respectively connected to the two centering platforms. A first slide is provided at the bottom of the centering platform, and the first slide is fixedly connected to the end of the push rod. A second slide is provided above the first slide, and a reversing bearing is fixedly connected to the top of the first slide. A reversing guide plate is provided on the top of the reversing bearing, and the head of the reversing bearing is located in the guide groove of the reversing guide plate. The top of the reversing guide plate is fixedly connected to the bottom of the second slide, and a centering limiting block is installed on the top of the second slide. The positioning hole machining table includes a cylinder mounting plate fixed to the output end of a rotary indexing head. A workpiece positioning seat is provided above the cylinder mounting plate. The workpiece positioning seat has a hollow boss structure, and a cavity is formed between the workpiece positioning seat and the cylinder mounting plate. Several clamping components are arranged in a ring around the cavity. The clamping components include a clamping cylinder and a limiting pressure plate. The clamping cylinder is fixedly installed on the top surface of the cylinder mounting plate, and its piston rod passes through the top of the machining positioning seat and extends to the top surface of the machining positioning seat. The limiting pressure plate is installed at the end of the piston rod of the clamping cylinder. The positioning hole drilling mechanism includes a lifting slide table provided below the positioning hole machining table, a positioning hole drill fixed on the lifting slide table, and a lifting motor for driving the lifting slide table to slide up and down.

[0008] Furthermore, the top of the testing machine base is provided with several testing and positioning pins for testing and positioning. The testing mechanism includes a testing cutter for testing the depth of the half-pin hole and a pushing cylinder for pushing the testing cutter. The central axis of the testing cutter is aligned with the central axis of the side half-pin hole to be processed, and the blade of the testing cutter is set directly opposite the notch of the side half-pin hole. The blade width is equal to the notch width of the side half-pin hole to be processed.

[0009] Furthermore, the pin hole processing table includes a positioning and clamping mechanism. The main body of the positioning and clamping mechanism is a positioning mounting base fixed to the top of the rotating base. The positioning mounting base is an annular central platform. The top of the positioning mounting base is provided with a plurality of drilling pads for assisting drilling and supporting the workpiece. The plurality of drilling pads correspond one-to-one with the positions of the side half pin holes to be processed. A plurality of processing positioning pins for cooperating with the processing positioning are evenly distributed among the plurality of drilling pads. A plurality of clamping components are provided in the central through groove of the positioning mounting base. The clamping cylinders of the plurality of clamping components are all fixedly mounted on the top surface of the rotating base. The piston rod of the clamping cylinder and the limiting pressure plate installed at the end of its piston rod extend through the central through groove of the positioning mounting base to the top surface of the positioning mounting base. The main body of the pin hole drilling mechanism is a feed slide. A pin hole drill is slidably mounted on the feed slide. A feed motor is driven to the tail end of the feed slide.

[0010] Furthermore, the top of the drilling pad is provided with an arc groove, the radius of which matches the radius of the side half-pin hole to be machined, and the arc groove and the side half-pin hole to be machined combine to form a complete circular pin hole.

[0011] Furthermore, the number of pin hole processing machines is two, and the two pin hole processing machines are arranged sequentially along the direction of the crossbeam guide rail; the sliding assembly is equipped with two transfer robotic arms, and the installation distance between the two transfer robotic arms is greater than the diameter of the end plate workpiece.

[0012] Furthermore, the clamping cylinder includes a piston rod and a guide ring fixed inside the cylinder, and the piston rod is provided with a helical groove for engaging with the guide ring.

[0013] This invention also provides a method for manufacturing pin holes in pile end plates. The method is performed using a pile end plate pin hole manufacturing production line and includes the following steps: S1. The end plate workpiece is transferred from the loading lifting platform to the positioning hole processing machine table by the transfer mechanism's transfer robotic arm; S2. On the positioning hole processing machine table, the end plate workpiece is positioned and limited by the centering and limiting mechanism, the end plate workpiece is fixed on the positioning hole processing table by the clamping assembly, and then the positioning hole drilling mechanism is used to drill the positioning hole of the end plate workpiece from below. S3. The end plate workpiece with the completed positioning hole is transferred to the pin hole processing machine table through the transfer mechanism. The end plate workpiece is positioned and clamped by the positioning and clamping mechanism. Then, the side half pin hole drilling mechanism of the end plate workpiece is processed by the pin hole drilling mechanism surrounding the pin hole processing table. S4. The end plate workpiece with the side half pin hole processed is transferred to the finished product inspection machine through the transfer mechanism. The end plate workpiece is inspected and positioned by the inspection positioning pin. Then, the depth dimension of the processed side half pin hole is inspected by the inspection mechanism and the burrs remaining at the notch are removed. S5. After passing the inspection, the finished end plate workpiece is transferred to the unloading lifting platform by the transfer mechanism.

[0014] Compared with previous technologies, the beneficial effects of the present invention are as follows: This solution is equipped with a transfer device, which enables automated transfer of end plate workpieces between various processing machines without manual intervention, reducing labor costs. It also avoids positioning deviations caused by manual transfer, improving processing accuracy. Furthermore, the end of the transfer robotic arm is equipped with an electromagnetic adsorption component and a rotating air jet plate. Before adsorbing and transferring the workpiece, the rotating air jet plate can clean the dust and debris on the upper surface of the workpiece, improving the stability of workpiece transfer and preventing dust and debris generated during processing from affecting the production process of the next step.

[0015] The positioning hole processing machine set in this solution is equipped with a centering and limiting mechanism and a clamping component, which can achieve precise centering and stable clamping of the end plate workpiece, ensuring the processing accuracy of the positioning hole.

[0016] The positioning hole machining table in this solution is equipped with a rotating indexing head at the bottom, and the pin hole machining table is equipped with a rotating base at the bottom. Through precise indexing and rotation, multi-angle continuous machining of the workpiece can be realized in one clamping, which can quickly adapt to the processing requirements of different products and enhance the flexible production capability of the equipment.

[0017] The finished product inspection machine set up in this solution is equipped with an inspection mechanism that integrates the depth inspection function and the deburring function into the same mechanism and completes them synchronously in one continuous feed action. This effectively overcomes the defects of existing technology such as scattered processes and low efficiency. It is highly integrated, efficient, accurate and low cost. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the configuration of the double positioning hole machine base pile end plate pin hole production line of the present invention; Figure 2 This is a schematic diagram of the configuration of the single positioning hole machine base pile end plate pin hole production line of the present invention; Figure 3 This is a schematic diagram of the double-arm sliding assembly structure of the present invention; Figure 4 This is a schematic diagram of the transfer robotic arm structure of the present invention; Figure 5 This is a schematic diagram of the positioning hole drilling machine of the present invention; Figure 6 This is a schematic diagram of the positioning hole processing table structure of the present invention; Figure 7 This is a schematic diagram of the pin hole processing machine of the present invention; Figure 8 This is a top view schematic diagram of the pin hole processing table of the present invention; Figure 9 This is a schematic diagram of the pin hole processing table structure of the present invention; Figure 10 This is an enlarged view of section A of the schematic diagram of the pin hole machining table structure of the present invention; Figure 11 This is a schematic diagram of the finished product testing station structure of the present invention; Figure 12 This is a schematic diagram of the detection mechanism structure of the present invention; Figure 13 This is a schematic diagram of the centering and limiting mechanism of the present invention; Figure 14 This is an enlarged view of section B in the schematic diagram of the centering and limiting mechanism of the present invention; Figure 15 This is a schematic diagram of the pin hole drilling mechanism of the present invention; Figure 16 This is a schematic diagram of the clamping cylinder structure of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Transfer mechanism; 11. Robotic arm assembly; 111. Sliding assembly; 112. Transfer robotic arm; 12. Robotic arm mounting frame; 121. Beam guide rail; 122. Column; 2. Loading lifting platform; 3. Positioning hole machining table; 31. Positioning hole machining table base; 32. Positioning hole machining table; 321. Rotary indexing head; 322. Hydraulic cylinder mounting plate; 323. Workpiece positioning seat; 33. Centering limit mechanism; 331. Centering platform; 332. Push cylinder; 333. Push rod; 334. First slide; 335. Second slide; 336. Reversing bearing; 337. Reversing guide plate; 338. Centering limit block; 34. Positioning hole drilling mechanism; 341. Lifting slide; 342. Positioning hole drilling machine; 343. Lifting motor; 35. Clamping assembly; 351. Clamping cylinder; 352. Limiting pressure plate; 353. Piston rod; 354. Spiral groove; 355. Guide ring; 4. Finished product inspection machine; 41. Inspection machine base; 42. Inspection positioning pin; 43. Inspection mechanism; 431. Inspection cutter head; 432. Propulsion cylinder; 5. Pin hole machining table; 51. Pin hole machining table base; 52. Pin hole machining table; 521. Rotary base; 53. Pin hole drilling mechanism; 531. Feed slide; 532. Pin hole drilling machine; 533. Feed motor; 54. Positioning and clamping mechanism; 541. Positioning mounting base; 542. Drilling pad; 543. Machining positioning pins; 6. Unloading lifting platform; 7. End plate workpiece; 8. Electromagnetic adsorption assembly; 81. Suction cup mounting plate; 82. Rotary jet plate; 83. Electromagnetic suction cup. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0021] like Figure 1-16As shown, a pile end plate pin hole processing production line of the present invention includes a transfer mechanism 1, a loading lifting platform 2, a positioning hole processing machine 3, a pin hole processing machine 5, a finished product inspection machine 4, and a unloading lifting platform 6; the transfer mechanism 1 includes a robotic arm assembly 11 and a robotic arm mounting frame 12, the main body of the robotic arm mounting frame 12 is a beam-type guide rail 121, and several columns 122 for supporting the beam-type guide rail 121 are arranged below the beam-type guide rail 121; the robotic arm assembly 11 includes a sliding assembly 111 and a transfer mechanism. The robotic arm 112, or robotic arm assembly 11, is slidably mounted on the beam-type guide rail 121 via a sliding assembly 111. The robotic arm 112 is vertically slidably mounted on the sliding assembly 111. An electromagnetic adsorption component 8 is installed at the end of the robotic arm 112. The main body of the electromagnetic adsorption component 8 is a suction cup mounting plate 81. A rotating air jet plate 82 for cleaning dust from the top of the workpiece is installed at the center of the suction cup mounting plate 81. Several electromagnet suction cups 83 for adsorbing workpieces are arranged around the bottom of the suction cup mounting plate 81. The loading lifting platform 2, the positioning hole processing machine 3, the pin hole processing machine 5, the finished product inspection machine 4, and the unloading lifting platform 6 are sequentially arranged below the transfer mechanism 1 along the extension direction of the beam-type guide rail 121. The automatic transfer of workpieces between various processes is achieved through the cooperation between the robotic arm assembly 11 and the beam-type guide rail 121, eliminating the need for manual intervention, greatly improving production efficiency, and reducing labor costs.

[0022] The positioning hole processing machine base 3 includes a positioning hole processing machine base 31, a positioning hole processing table 32, a centering and limiting mechanism 33, and a positioning hole drilling mechanism 34. The positioning hole processing table 32 is rotatably mounted at the center of the positioning hole processing machine base 31 via a rotating indexing head 321. The output end of the rotating indexing head 321 is connected to a cylinder mounting plate 322. A workpiece positioning seat 323 is provided above the cylinder mounting plate 322. The workpiece positioning seat 323 has a hollow boss structure, and a cavity is formed between the workpiece positioning seat 323 and the cylinder mounting plate 322. Several clamping components 35 are arranged around the cavity. The clamping components 35 include a clamping cylinder 351 and a limiting pressure plate 352. The clamping cylinder 351 includes a piston rod 353 and a guide ring 355 fixed in the cylinder. The piston rod 353 is provided with a spiral groove 354 for cooperating with the guide ring 355. The clamping cylinder 351 is fixedly mounted on the top surface of the cylinder mounting plate 322. Its piston rod passes through the top of the machining positioning seat 323 and extends above the top surface of the machining positioning seat 323. The limiting pressure plate 352 is installed at the end of the piston rod of the clamping cylinder 351. When clamping the workpiece, the clamping cylinder 351 controls the piston rod 353 to retract and move axially. During the retraction of the piston rod 353, the guide ring 355 slides spirally in the spiral groove 354, thereby driving the piston rod 353 to rotate along the spiral trajectory in the spiral groove 354, causing the limiting pressure plate 352 to rotate outward by 90°, unfold to the clamping position above the end plate workpiece 7, and continue to press down and tighten to complete the workpiece fixing. After the machining is completed, the clamping cylinder 351 controls the piston rod 353 to extend upward. Through the cooperation of the guide ring 355 and the spiral groove 354, the limiting pressure plate 352 is driven to rotate inward by 90° and retract into the central through groove of the end plate workpiece 7. This avoids interference with the workpiece transfer process and improves clamping efficiency and machining stability.

[0023] The centering and limiting mechanism 33 includes two centering platforms 331 symmetrically arranged on both sides of the positioning hole machining table 32, a propulsion cylinder 332 for driving the two centering platforms 331 to feed inward, and a push rod 333. The output end of the propulsion cylinder 332 is fixedly connected to the midpoint of the push rod 333. The two ends of the push rod 333 are respectively connected to the two centering platforms 331. A first slide 334 is provided at the bottom of the centering platform 331. The first slide 334 is fixedly connected to the end of the push rod 333. A second slide 335 is provided above it. A reversing bearing 336 is fixedly connected to the top of the first slide 334. A reversing guide plate 337 is provided on the top of the reversing bearing 336, and the head of the reversing bearing 336 is located in the guide groove of the reversing guide plate 337. The top of the reversing guide plate 337 is fixedly connected to the bottom of the second slide 335, and the top of the second slide 335 is equipped with a centering limit block 338. The push cylinder 332 pushes the push rod 333 to feed along the y-axis, which drives the first slide 334 and the reversing bearing 336 to move along the y-axis. Since the bearing head of the reversing bearing 336 is set in the guide groove of the reversing guide plate 337, when the reversing bearing 336 moves along the y-axis, it drives the second slide 335 to move along the x-axis, thereby driving the centering limit block 339 to move along the x-axis. That is, when the push cylinder 332 pushes the push rod 333 to feed along the y-axis, it drives the centering limit blocks 339 on both sides to feed synchronously towards the center of the positioning hole processing table 32, ensuring the centering accuracy of the workpiece and ensuring the processing quality of the positioning hole. The positioning hole drilling mechanism 34 includes a lifting slide 341 located below the positioning hole processing table 32, a positioning hole drill 342 fixed on the lifting slide 341, and a lifting motor 343 for driving the lifting slide 341 to slide up and down. The drill bit of the positioning hole drill 342 is set upwards. The centering limit mechanism 33 and the clamping assembly 35 are used to accurately determine the center axis of the workpiece to ensure the positioning hole processing position accuracy. Through the precise indexing of the rotating indexing head 321, the workpiece is driven to rotate around its own center axis to three 120° angular positions in sequence. At each angular position, a positioning hole is drilled through the cooperation of the positioning hole drilling mechanism 34, thereby processing three positioning holes evenly distributed at 120° on the workpiece.

[0024] The pin hole processing machine 5 includes a pin hole processing machine base 51, a pin hole processing table 52, and fifteen pin hole drilling mechanisms 53. The pin hole processing table 52 is rotatably set at the center of the pin hole processing machine base 51 via a rotating base 521. A positioning and clamping mechanism 54 is provided on the top of the rotating base 521. The positioning and clamping mechanism 54 includes a positioning mounting seat 541 fixed to the top of the rotating base 521. The positioning mounting seat 541 is an annular through-type base. The top of the positioning mounting seat 541 is provided with thirty drilling pads 542 for assisting drilling and supporting the workpiece. The drilling pads 542 correspond one-to-one with the positions of the side half pin holes to be processed. The top of the drilling pads 542 is provided with an arc groove. The radius of the arc groove matches the radius of the side half pin hole to be processed. It can be combined with the side half pin hole to form a complete circular pin hole, ensuring that the drill bit is subjected to uniform circumferential force during the half pin hole processing, avoiding drill bit vibration, and improving processing accuracy. Thirty drilling pads 542 are evenly distributed with three machining positioning pins 543 for machining positioning. Nine clamping assemblies 35 are arranged in the inner ring of the central through groove of the positioning mounting base 541. The clamping cylinders 351 of the clamping assemblies 35 are all fixedly mounted on the top surface of the rotating base 521. The piston rod of the clamping cylinder 351 and the limiting pressure plate 352 installed at the end of its output shaft extend through the central through groove of the positioning mounting base 541 to the top surface of the positioning mounting base 541. The aforementioned fifteen pin hole drilling mechanisms 53 are arranged around the pin hole machining table 52. The main body of the pin hole drilling mechanism 53 is a feed slide 5. 31. A pin hole drill 532 is slidably mounted on the feed slide 531. A feed motor 533 is driven to the tail end of the feed slide 531. The drill bit of the pin hole drilling mechanism 53 is positioned towards the center of the end plate workpiece 7. The workpiece is rotated 12° around its own central axis by the rotating base 521. With the cooperation of fifteen pin hole drilling mechanisms 53, the processing of thirty side half pin holes can be completed with two-wheel feed. By configuring different numbers of pin hole drilling mechanisms 53 and rotation angles of the rotating base 521, various processing needs can be met, increasing the versatility of the equipment.

[0025] The main body of the finished product inspection machine 4 is the inspection machine base 41. The top of the inspection machine base 41 is provided with three inspection positioning pins 42 for cooperating with inspection positioning. The outer ring of the three inspection positioning pins 42 is provided with thirty inspection mechanisms 43 corresponding one-to-one with the side half pin holes to be processed. The inspection mechanism 43 includes an inspection cutter head 431 for detecting the processing depth of the half pin hole and a propulsion cylinder 432 for advancing the inspection cutter head 431. The central axis of the inspection cutter head 431 is aligned with the central axis of the side half-pin hole to be machined, and the cutting edge of the inspection cutter head 431 is set facing the extension direction of the notch of the side half-pin hole, and its cutting edge width is equal to the notch width of the side half-pin hole to be machined; while the propulsion cylinder 432 drives the inspection cutter head 431 to feed inward along the axis of the half-pin hole, the cutting edge of the inspection cutter head 431 cuts into the notch of the half-pin hole, and while inspecting the machining of the half-pin hole depth, it cuts away the burrs remaining at the notch of the half-pin hole; ensuring that the drilling depth and notch width of the half-pin hole meet the standards, ensuring machining quality, and avoiding the outflow of unqualified products. Example 2

[0026] Since the time spent processing pin holes on pin hole processing machine 5 is approximately twice that spent processing positioning holes on positioning hole processing machine 3, in order to further improve production efficiency...

[0027] like Figure 1 As shown, in this embodiment, based on embodiment 1, the number of pin hole processing machines 5 is increased to two. The two pin hole processing machines 3 are sequentially arranged along the extension direction of the beam-type guide rail 121. Correspondingly, two transfer robotic arms 112 are configured on the sliding assembly 111. The distance between the two transfer robotic arms 112 is greater than the diameter of the end plate workpiece 7, allowing for the simultaneous adsorption and transfer of two end plate workpieces 7. By setting up two positioning hole processing machines 3 and two transfer robotic arms 112, parallel processing of multiple workpieces is achieved, further improving production efficiency.

[0028] Working principle and process: The end plate workpiece 7 to be processed is placed on the loading lifting platform 2. The loading lifting platform 2 automatically adjusts its height according to the loading requirements. The transfer robotic arm 112 of the transfer mechanism 1 adsorbs the end plate workpiece 7 through the electromagnetic adsorption component 8 and moves along the beam guide rail 121 through the sliding assembly 111 to transfer the workpiece to the positioning hole processing table 3. The end plate workpiece 7 is placed on the positioning hole processing table 32. The propulsion cylinder 332 of the centering and limiting mechanism 33 drives the centering and limiting block 338 to synchronously feed towards the center of the positioning hole processing table 32, so that the central axis of the end plate workpiece 7 coincides with the central axis of the positioning hole processing table 32, realizing the... Precise centering; the clamping cylinder 351 drives the limiting pressure plate 352 to unfold outward and clamp the end plate workpiece 7. The lifting motor 343 of the positioning hole drilling mechanism 34 drives the lifting slide 341 to slide upward, driving the drill bit of the positioning hole drilling machine 342 to feed upward and drill positioning holes in the workpiece. After drilling, the rotating indexing head 321 drives the workpiece to rotate around its own central axis to two 120° angle positions in sequence. At each angle position, a positioning hole is drilled through the cooperation of the positioning hole drilling mechanism 34, thereby processing three evenly distributed positioning holes on the workpiece and completing the positioning hole processing of the end plate workpiece 7.

[0029] The robotic arm 112 above the positioning hole processing machine table 3 falls down and pauses briefly at a height of 10 cm above the upper end face of the workpiece. The rotating jet plate 82 sprays high-pressure gas and rotates around its midpoint to remove the dust from the upper end face of the workpiece. Then it continues to fall, and the electromagnet chuck 83 attracts the end plate workpiece 7 and moves it to the pin hole processing machine table 5.

[0030] The end plate workpiece 7 is placed on the pin hole processing table 52. The positioning pin 543 is machined to engage with the positioning pin hole on the end plate workpiece 7. Positioning is completed on the positioning mounting base 541. The clamping cylinder 351 drives the limiting pressure plate 352 to unfold outward and clamp the end plate workpiece 7. The fifteen pin hole drilling mechanism 53 simultaneously begins to feed towards the end plate workpiece 7 to perform side half pin hole drilling. After the first round of pin hole processing is completed, the rotating base 521 drives the workpiece to rotate 12° around its own central axis. The fifteen pin hole drilling mechanism 53 then performs a second round of feeding. Thus, the drilling of thirty side half pin holes can be completed through two rounds of feeding.

[0031] The transfer robot arm 112 moves the finished end plate workpiece 7 to the finished product inspection table 4. The positioning hole on the end plate workpiece 7 matches the pin hole of the inspection positioning pin 42 and is positioned on the inspection machine base 41. The push cylinder 432 drives the inspection cutter head 431 to feed into the side half pin hole to be processed. The blade of the inspection cutter head 431 cuts into the notch of the half pin hole, and at the same time, it removes the burrs remaining at the notch while inspecting the depth dimension of the side half pin hole of the finished end plate workpiece 7. If the inspection cutter head 431 cannot feed normally to the set depth, the product processing is unqualified, the sensor reports an error, and the end plate workpiece 7 is discarded. If the inspection cutter head 431 can feed normally to the set depth, the product is qualified. The transfer robot arm 112 lowers and moves the qualified end plate workpiece 7 to the unloading lifting table 6 to complete the product processing production.

[0032] Although the present invention has been illustrated and described using specific embodiments and alternative methods, it should be understood that various changes and modifications are permitted as long as they do not depart from the spirit and scope of the invention. In the embodiments described above, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances. Furthermore, the terms "up and down," "left and right," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for ease of description and simplification, not to indicate or imply a specific orientation.

[0033] Therefore, it should be understood that the invention is not limited in any sense except by the appended claims and their equivalents.

Claims

1. A production line for processing pin holes in foundation pile end plates, characterized in that: The system includes a transfer mechanism (1), a loading lifting platform (2), a positioning hole processing machine (3), a pin hole processing machine (5), a finished product inspection machine (4), and a unloading lifting platform (6). The transfer mechanism (1) includes a robotic arm assembly (11) and a robotic arm mounting frame (12). The main body of the robotic arm mounting frame (12) is a beam-type guide rail (121). The robotic arm assembly (11) is slidably mounted on the beam-type guide rail (121) through a sliding assembly (111). The loading lifting platform (2), the positioning hole processing machine (3), the pin hole processing machine (5), the finished product inspection machine (4), and the unloading lifting platform (6) are sequentially arranged below the transfer mechanism (1) along the extension direction of the beam-type guide rail (121). The positioning hole processing machine (3) includes a positioning hole processing machine base (31), a positioning hole processing table (32), a centering and limiting mechanism (33), and a positioning hole drilling mechanism (34). The positioning hole processing table (32) is rotatably set at the center of the positioning hole processing machine base (31) by rotating the indexing head (321). The centering and limiting mechanism (33) is set at the top periphery of the positioning hole processing table (32). The positioning hole drilling mechanism (34) is set below the positioning hole processing table (32), with its drill bit facing upward. The pin hole processing machine (5) includes a pin hole processing machine base (51), a pin hole processing table (52), and several pin hole drilling mechanisms (53). The pin hole processing table (52) is rotatably mounted at the center of the pin hole processing machine base (51) via a rotating base (521). The several pin hole drilling mechanisms (53) are arranged around the pin hole processing table (52). The drill bits of the pin hole drilling mechanisms (53) are horizontally arranged facing the top center of the pin hole processing table (52). The finished product testing machine (4) includes a testing machine base (41), and the top of the testing machine base (41) is provided with a number of testing mechanisms (43) that correspond one-to-one with the side half pin holes to be processed.

2. The pile end plate pin hole processing production line according to claim 1, characterized in that: Several columns (122) for supporting the beam guide rail (121) are provided below the beam guide rail (121); a transfer robot arm (112) is vertically slidably provided on the sliding assembly (111); an electromagnetic adsorption component (8) is installed at the end of the transfer robot arm (112), the main body of the electromagnetic adsorption component (8) is a suction cup mounting plate (81), a rotating jet plate (82) for cleaning the powder on the top of the workpiece is installed at the center of the suction cup mounting plate (81), and several electromagnet suction cups (83) for adsorbing the workpiece are arranged around the bottom of the suction cup mounting plate (81).

3. The pile end plate pin hole processing production line according to claim 1, characterized in that: The centering and limiting mechanism (33) includes two centering platforms (331) symmetrically arranged on both sides of the positioning hole processing table (32), a propulsion cylinder (332) for driving the two centering platforms (331) to feed inward, and a push rod (333). The output end of the propulsion cylinder (332) is fixedly connected to the midpoint of the push rod (333). The two ends of the push rod (333) are respectively connected to the two centering platforms (331). A first slide (334) is provided at the bottom of the centering platform (331). A second slide (335) is fixedly connected to the end of the push rod (333), and a reversing bearing (336) is fixedly connected to the top of the first slide (334). A reversing guide plate (337) is provided on the top of the reversing bearing (336), and the head of the reversing bearing (336) is located in the guide groove of the reversing guide plate (337). The top of the reversing guide plate (337) is fixedly connected to the bottom of the second slide (335), and a centering limit block (338) is installed on the top of the second slide (335). The positioning... The hole machining table (32) includes a cylinder mounting plate (322) fixed to the output end of the rotary indexing head (321). A workpiece positioning seat (323) is provided above the cylinder mounting plate (322). The workpiece positioning seat (323) is a hollow boss structure. A cavity is formed between the workpiece positioning seat (323) and the cylinder mounting plate (322). A plurality of clamping components (35) are arranged in the inner ring of the cavity. The clamping components (35) include clamping cylinders (351) and limiting pressure plates (352). The clamping cylinders (351) The piston rod of the cylinder is fixedly installed on the top surface of the cylinder mounting plate (322), and extends through the top of the machining positioning seat (323) and above the top surface of the machining positioning seat (323). The limiting pressure plate (352) is installed at the end of the piston rod of the clamping cylinder (351). The positioning hole drilling mechanism (34) includes a lifting slide (341) installed below the positioning hole machining table (32), a positioning hole drill (342) fixed on the lifting slide (341), and a lifting motor (343) for driving the lifting slide (341) to slide up and down.

4. The pile end plate pin hole processing production line according to claim 1, characterized in that: The top of the testing machine base (41) is provided with a number of testing positioning pins (42) for testing and positioning. The testing mechanism (43) includes a testing cutter head (431) for testing the depth of the half pin hole and a pushing cylinder (432) for pushing the testing cutter head (431). The central axis of the testing cutter head (431) is aligned with the central axis of the side half pin hole to be processed, and the blade of the testing cutter head (431) is set directly opposite the notch of the side half pin hole. The blade width is equal to the notch width of the side half pin hole to be processed.

5. The pile end plate pin hole processing production line according to claim 1, characterized in that: The pin hole processing table (52) includes a positioning and clamping mechanism (54). The main body of the positioning and clamping mechanism (54) is a positioning mounting base (541) fixed on the top of the rotating base (521). The positioning mounting base (541) is an annular through-type base. The top of the positioning mounting base (541) is provided with a plurality of drilling pads (542) for assisting drilling and supporting the workpiece. The plurality of drilling pads (542) correspond one-to-one with the positions of the side half pin holes to be processed. A plurality of processing positioning pins (543) for cooperating with processing positioning are evenly distributed among the plurality of drilling pads (542). The positioning mounting base (541) The inner ring of the central through groove is provided with several clamping components (35). The clamping cylinders (351) of the several clamping components (35) are all fixedly installed on the top surface of the rotating base (521). The piston rod of the clamping cylinder (351) and the limiting pressure plate (352) installed at the end of its piston rod extend through the central through groove of the positioning mounting base (541) to the top surface of the positioning mounting base (541). The main body of the pin hole drilling mechanism (53) is the feed slide (531). The pin hole drill (532) is slidably installed on the feed slide (531). The tail end of the feed slide (531) is driven and connected to the feed motor (533).

6. The pile end plate pin hole processing production line according to claim 5, characterized in that: The top of the drilling pad (542) is provided with an arc groove, the radius of which matches the radius of the side half pin hole to be processed, and the arc groove and the side half pin hole to be processed are combined to form a complete circular pin hole.

7. The production line for processing pin holes in foundation pile end plates according to claim 1, characterized in that: The number of the pin hole processing machine (5) is two, and the two pin hole processing machine (5) are arranged sequentially along the extension direction of the beam guide rail (121); the sliding assembly (111) is equipped with two transfer robotic arms (112), and the installation distance between the two transfer robotic arms (112) is greater than the diameter of the end plate workpiece (7).

8. The pile end plate pin hole processing production line according to claim 3, characterized in that: The clamping cylinder (351) includes a piston rod (353) and a guide ring (355) fixed inside the cylinder. The piston rod (353) is provided with a spiral groove (354) for cooperating with the guide ring (355).

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