A special manufacturing equipment for automobile door steel hinges

Abstract

The present application relates to a special manufacturing equipment for automobile door steel hinges, comprising a frame, a turntable rotating on the frame, the turntable being provided with a clamping tooling, a positioning detection mechanism and a plurality of processing units; the clamping tooling comprises a mounting seat with a product-shaped positioning surface and a limit assembly, the limit assembly being used to fix and limit the product, the mounting seat being fixedly connected to the turntable, the positioning detection mechanism comprising a first air pump, the first air pump being arranged on the frame, micro air holes being provided on the positioning surface of the mounting seat, an air flow channel being provided in the mounting seat, the air flow channel being connected with the micro air holes on the positioning surface, and when the turntable is rotated until the mounting seat faces the first air pump, the first air pump is connected with the air flow channel; the detection speed of product clamping is improved, and the possibility of the product entering the processing process being not clamped in place is reduced; through the rotation of the turntable, each processing unit processes the product on the mounting seat in sequence, and multiple processes are completed by one clamping, which is convenient for the production of automobile door steel hinges.

Description

Technical Field

[0001] The present invention relates to the field of automobile parts manufacturing equipment, in particular to a special manufacturing equipment for automobile door steel hinges. Background Art

[0002] Automotive door hinges are the core connection between the door and the body, primarily responsible for supporting the door's weight and ensuring smooth opening and closing. The production and installation of these hinges are subject to extremely stringent requirements. The mounting surfaces between the hinge, the body, and the door must be flat to ensure precise installation. If bolts are used for fastening, the mounting holes must be precisely dimensioned and stable. During installation, ensure that all components fit snugly, without any looseness or movement.

[0003] like Figure 17 Shown is a product diagram of an automobile door steel hinge, including an overall "L"-shaped automobile door steel hinge, which is divided into a left hinge and a right hinge. The automobile door steel hinge is respectively provided with vertical holes, straight holes, through holes and inclined holes. In the existing technology, multiple devices are often used to punch and tap the automobile door steel hinge, and part of the surface is milled, which makes it necessary to frequently change equipment or production lines for semi-finished products and lengthy production processes. This not only leads to low production efficiency of the automobile door steel hinge, but also requires multiple replacements of equipment for processing and multiple clamping, resulting in large positional errors of multiple holes on the automobile door steel hinge. Summary of the Invention

[0004] In order to facilitate the production of automobile door steel hinges, the present application provides a special manufacturing equipment for automobile door steel hinges.

[0005] The present application provides a special manufacturing equipment for automobile door steel hinges adopts the following technical solutions:

[0006] A special manufacturing equipment for automobile door steel hinges, comprising a frame, a turntable rotatably connected to the frame, and multiple sets of clamping tools for clamping products evenly distributed on the turntable, characterized in that it also includes a positioning detection mechanism and multiple sets of processing units;

[0007] Each set of the clamping fixtures includes a mounting seat with a product contour positioning surface and a limit assembly, the limit assembly is used to fix and limit the product placed on the contour positioning surface, the mounting seat is fixedly connected to the turntable, and the positioning detection mechanism is used to detect whether the product is completely placed on the contour positioning surface of the mounting seat, and the positioning detection mechanism includes a first air pump, the first air pump is fixedly connected to the frame, micro air holes are provided on the contour positioning surface of the mounting seat, an air flow channel is provided inside the mounting seat, one end of the air flow channel is connected to the micro air holes on the contour positioning surface, and when the turntable rotates until the mounting seat faces the first air pump, the first air pump and the air flow channel are connected;

[0008] The plurality of processing units are sequentially arranged along the circumference of the turntable to process the workpieces on the turntable in sequence.

[0009] By adopting this technical solution, when the product is fully placed on the contoured positioning surface of the mounting base, the micro-pores are sealed, causing the air pressure within the airflow channel to change. Conversely, if the product is not fully placed, the air pressure change will be different. By detecting the air pressure change, it is possible to accurately determine whether the product is fully placed. This improves the speed of product clamping inspection, minimizes product damage, and reduces the possibility of improper clamping entering the processing step, thereby reducing the impact on product processing accuracy. Through the rotation of the turntable, each processing unit sequentially processes the product on the mounting base, completing multiple processes in a single clamping, facilitating the production of automotive door steel hinges.

[0010] Preferably, the limit assembly includes an abutment seat, a sliding seat and a first oil cylinder, the sliding seat is slidably connected to the frame, the sliding seat is fixedly connected to the first limit block, and the sliding seat is slidably connected to the second limit block along the sliding direction of the sliding seat, the second limit block is sleeved with a first spring, the first spring always drives the second limit block to slide toward the side away from the first oil cylinder, the abutment seat is fixedly connected to the mounting seat, a plurality of avoidance holes are opened on the abutment seat, and the contoured positioning surface on the mounting seat is located between the sliding seat and the abutment seat, and when the sliding seat moves toward the side of the workpiece, the second limit block abuts against the product first compared to the first limit block.

[0011] By adopting the above-mentioned technical solution, that is, the sliding seat drives the sliding of the first limit block and the second limit block, and together with the abutment seat, the product is clamped and fixed; when the sliding seat moves toward the workpiece, the second limit block first contacts the product, and the first spring is compressed to generate a buffering force to avoid scratches or deformation on the product surface caused by rigid collision; after the second limit block pre-contacts and initially positions, the first limit block further presses the product to form a double insurance positioning, reducing the possibility of displacement of the product during processing; a number of avoidance holes opened on the abutment seat provide avoidance space for the processing tool.

[0012] Preferably, the limit assembly also includes a limit seat and a driving member, the limit seat is slidably connected to the mounting seat, a positioning groove is provided on the mounting seat, and a jet channel is provided on the limit seat, one end of the jet channel is connected to the positioning groove, and the other end thereof faces the side of the contoured positioning surface on the mounting seat, and a plurality of jet nozzles that can be plugged into and matched with the positioning groove are slidably connected to the frame. When the turntable is positioned, the driving member drives the jet nozzle to plug and match with the positioning groove. When the hinge is in a processing state, the limit seat moves toward one side of the hinge until it abuts against the hinge. When the product is in a processing state, the jet channel sprays high-speed airflow toward one side of the product.

[0013] By adopting the above technical solution, the limit seat slides in the vertical direction, and forms an orthogonal constraint with the first limit block and the second limit block in the horizontal direction of the sliding seat, thereby realizing three-dimensional positioning of the product; the limit seat is not in contact until the main positioning of the product is completed, thereby avoiding surface scratches caused by direct rigid impact; when the turntable is positioned, the second air pump sprays high-speed airflow to the product surface through the jet channel. During the drilling, milling and other processes, the airflow can instantly blow away the metal chips and coolant residues on the contour positioning surface and the product surface, thereby avoiding clamping deviation caused by debris stuck on the contour positioning surface during the later clamping process; the high-speed airflow forms local forced convection in the processing area, taking away the cutting heat. During the milling or drilling process, the cooling airflow reduces the friction temperature between the tool and the workpiece, reduces the thermal wear of the carbide tool, and reduces the dimensional deviation caused by thermal expansion of the workpiece.

[0014] Preferably, the frame is further provided with a second air pump, and the plurality of air nozzles are respectively connected to the second air pump. The air nozzles are provided with side holes, and the second air pump supplies air to the air nozzles, so that an air film is formed between the side holes of the air nozzles and the positioning grooves during the engagement of the air nozzles with the positioning grooves. When the air nozzles are fully engaged with the positioning grooves, the second air pump supplies air into the air jet channel.

[0015] By adopting the above technical solution, air is supplied to the air nozzle through the second air pump, and a high-pressure air film is formed when the air nozzle and the positioning groove are matched, so that the two are in a non-contact state, reducing the direct friction between the air nozzle and the positioning groove, reducing wear and metal fatigue, and reducing maintenance frequency; the air film airflow can blow away debris, oil stains and other impurities in the positioning groove, reducing the possibility of inaccurate positioning of the turntable due to foreign matter obstruction; the matching of the air nozzle and the positioning groove does not require a complex mechanical structure, and rapid docking can be achieved through air pressure control.

[0016] Preferably, the jet channel includes a first channel and a second channel, the second channel is opened on the limit seat, one end of which faces the side of the contoured positioning surface of the mounting seat, a sliding block is slidably connected in the mounting seat along the sliding direction of the sliding seat, and the sliding block is slidably connected to the limit seat at the same time, the first channel is opened on the sliding block, and the positioning groove is provided on the sliding block, when the jet nozzle is matched with the positioning groove, the jet nozzle moves to abut against the sliding block and drives the sliding block to move together, when the jet nozzle is fully matched with the positioning groove, the sliding block moves to connect the first channel with the second channel.

[0017] By adopting this technical solution, the airflow is precisely controlled by controlling the connection between the first and second channels through the movement of the air nozzle, which drives the sliding block. Only when the air nozzle is fully aligned with the positioning groove will the airflow be delivered to the product surface through the connected airflow channel, avoiding premature or delayed airflow delivery and improving airflow accuracy.

[0018] Preferably, a first rack is provided on the limit seat, a second rack is provided on the sliding block, a gear is rotatably connected in the mounting seat, and the gear is engaged with the first rack and the second rack at the same time, and the sliding block is provided with a second spring, which always drives the sliding block to slide toward the side away from the turntable.

[0019] By adopting the above technical solution, when the air nozzle engages with the positioning groove, the air nozzle drives the sliding block to move. Through the meshing transmission of the gear and the first and second racks, the linear motion of the air nozzle can be converted into precise position adjustment, ensuring that the first and second channels are accurately connected. This precise positioning method ensures that the airflow is delivered to the product surface at the appropriate time and position, improving the product's positioning accuracy and processing quality. The meshing structure of the gear and the first and second racks increases the stability of the entire air channel connection process. During the process of the air nozzle engaging with the positioning groove and the movement of the sliding block, the gear transmission can provide stable power transmission, preventing the sliding block from shaking or offsetting during movement, thereby ensuring the stability of the connection between the first and second channels. After the air nozzle separates from the positioning groove, the second spring causes the sliding block to slide toward the side away from the turntable, separating the first and second channels.

[0020] Preferably, a pressure sensor is provided in the jet channel, and the pressure sensor is connected to the control system. When the pressure in the second channel is abnormal, the control system can adjust the air supply pressure of the third air pump in time to ensure the normal operation of the limit assembly.

[0021] By employing this technical solution, a pressure sensor collects real-time airflow pressure data within the jet channel and transmits it to the control system. If a pressure anomaly is detected, the system automatically adjusts the air supply pressure from the third air pump. This stable airflow pressure ensures consistent cleaning, cooling, and positioning results.

[0022] Preferably, the multiple groups of processing units respectively include a straight hole processing unit for processing straight holes of the product on the mounting seat, a through hole processing unit for processing through holes of the product on the mounting seat, a milling unit for milling the surface of the product on the mounting seat, an inclined hole processing unit for processing inclined holes of the product on the mounting seat, a vertical hole processing unit for processing vertical holes of the product on the mounting seat and a deburring unit for deburring straight holes and through holes, wherein the through hole processing unit and the milling unit are located at the same workstation for simultaneous processing, and the vertical hole processing unit and the deburring unit are located at the same workstation for simultaneous processing.

[0023] By adopting this technical solution, different units at the same workstation can simultaneously perform different processing operations on the product, achieving parallel operations. For example, the vertical hole processing unit and the deburring unit can simultaneously process the vertical hole of the product while the deburring unit deburrs the processed straight holes and through holes. This allows more processing tasks to be completed in the same amount of time, effectively shortening the product processing cycle. Furthermore, concentrating multiple units at the same workstation can reduce the floor space occupied by production equipment within the workshop and optimize equipment layout.

[0024] The technical effects of the present invention are mainly reflected in the following aspects:

[0025] 1. The present invention sets a positioning detection mechanism and multiple groups of processing units. When the product is completely placed on the contoured positioning surface of the mounting seat, the micro-pores will be sealed, causing the air pressure in the air flow channel to change; conversely, if the product is not completely placed, the air pressure changes differently. By detecting the change in air pressure, it is possible to accurately determine whether the product is completely placed in place. The speed of product clamping detection is improved, the damage to the product is minimized, and the possibility of entering the processing step due to inadequate clamping is reduced, thereby reducing the impact on product processing accuracy; through the rotation of the turntable, each processing unit processes the product on the mounting seat in sequence, and multiple processes are completed in one clamping, which is convenient for the production of automobile door steel hinges;

[0026] 2. The present invention provides a first limit block and a second limit block, that is, the sliding seat drives the first limit block and the second limit block to slide, and together with the abutment seat, clamps and fixes the product; when the sliding seat moves toward the workpiece, the second limit block first contacts the product, and the first spring is compressed to generate a buffer force, thereby preventing the rigid collision from causing scratches or deformation on the product surface; after the second limit block pre-contacts and initially positions the workpiece, the first limit block further presses the workpiece, forming a double-safety positioning, thereby reducing the possibility of displacement of the workpiece during processing; a plurality of avoidance holes provided on the abutment seat provide avoidance space for the processing tool;

[0027] 3. The present invention provides a first channel and a second channel, and controls the connection between the first channel and the second channel by using an air nozzle to drive the sliding block, thereby achieving precise control of airflow delivery. Only when the air nozzle is fully aligned with the positioning groove will the airflow be delivered to the product surface through the connected airflow channel, avoiding premature or delayed airflow delivery and improving the accuracy of airflow use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of the embodiment of the present application from the first angle.

[0029] Figure 2 This is a second angle schematic diagram of the overall structure of the embodiment of the present application.

[0030] Figure 3 It is along Figure 2 Enlarged view of point A in the middle.

[0031] Figure 4 It is a schematic diagram of the turntable structure of an embodiment of the present application.

[0032] Figure 5 It is a schematic diagram of the clamping tooling structure of an embodiment of the present application.

[0033] Figure 6 It is along Figure 5 Enlarged view of point B in the middle.

[0034] Figure 7 This is a schematic diagram of the structure of the state when the air nozzle and the positioning groove are in cooperation with each other in an embodiment of the present application.

[0035] Figure 8 This is a schematic structural diagram of the state when the air nozzle and the positioning groove are separated in an embodiment of the present application.

[0036] Figure 9 It is a schematic diagram of the mounting base structure of an embodiment of the present application.

[0037] Figure 10 It is a schematic diagram of the airflow channel structure of an embodiment of the present application.

[0038] Figure 11It is a schematic diagram of the processing unit structure of an embodiment of the present application.

[0039] Figure 12 It is a schematic diagram of the rack structure of an embodiment of the present application.

[0040] Figure 13 It is a structural schematic diagram of the straight hole processing unit according to an embodiment of the present application.

[0041] Figure 14 It is a schematic structural diagram of a through-hole processing unit and a milling unit according to an embodiment of the present application.

[0042] Figure 15 It is a schematic diagram of the structure of the inclined hole processing unit according to an embodiment of the present application.

[0043] Figure 16 It is a schematic diagram of the vertical hole processing unit mechanism of an embodiment of the present application.

[0044] Figure 17 This is a schematic diagram of the product structure of the embodiment of the present application.

[0045] Figure 18 This is a physical reference figure of the overall structure of the embodiment of the present application.

[0046] Figure 19 This is a reference diagram of the actual turntable structure of the embodiment of the present application.

[0047] Explanation of reference numerals: 1. frame; 11. nozzle; 12. second oil cylinder; 2. turntable; 21. first motor; 3. clamping fixture; 31. mounting seat; 32. position limiting assembly; 321. abutting seat; 322. sliding seat; 323. first oil cylinder; 324. first position limiting block; 325. second position limiting block; 326. first spring; 327. avoidance hole; 328. position limiting seat; 329. sliding block; 33. contoured positioning surface; 4. positioning detection mechanism; 41. first air pump; 42. micro Air hole; 43. Air flow channel; 5. Processing unit; 51. Straight hole processing unit; 52. Through hole processing unit; 53. Milling unit; 54. Inclined hole processing unit; 55. Vertical hole processing unit; 56. Deburring unit; 57. Gantry; 6. Jet channel; 61. First channel; 62. Second channel; 64. First rack; 65. Second rack; 66. Gear; 67. Positioning groove; 68. Second spring; 7. Hinge; 71. Vertical hole; 72. Straight hole; 73. Through hole; 74. Inclined hole. DETAILED DESCRIPTION

[0048] The following is combined with Figures 1-19 The present application is further described in detail to make the technical solution of the present application easier to understand and grasp.

[0049] The embodiment of the present application discloses a special manufacturing device for automobile door steel hinges.

[0050] Reference Figure 1 、 Figure 2 and Figure 3 The present embodiment provides a special manufacturing device for automobile door steel hinges, including a frame 1, a first motor 21 fixedly connected to the frame 1, a turntable 2 rotatably connected to the frame 1, and the first motor 21 is used to drive the rotation of the turntable 2; multiple groups of clamping tools 3 for clamping products are evenly distributed on the turntable 2, and also include a positioning detection mechanism 4 and multiple groups of processing units 5; these parts work together to form an efficient production system.

[0051] Reference Figures 11-16 , multiple groups of processing units 5 are arranged in sequence along the circumference of the turntable 2, and the multiple groups of processing units 5 respectively include a straight hole processing unit 51 for processing the straight hole 72 of the product on the mounting seat 31, a through hole processing unit 52 for processing the through hole 73 of the product on the mounting seat 31, a milling unit 53 for milling the surface of the product on the mounting seat 31, an inclined hole processing unit 54 for processing the inclined hole 74 of the product on the mounting seat 31, a vertical hole processing unit 55 for processing the vertical hole 71 of the product on the mounting seat 31 and a deburring unit 56 for deburring the straight hole 72 and the through hole 73, wherein the through hole processing unit 52 and the milling unit 53 are located at the same station for simultaneous processing, and the vertical hole processing unit 55 and the deburring unit 56 are located at the same station for simultaneous processing.

[0052] Reference Figure 1 、 Figure 2 and Figure 3 Different units at the same workstation can simultaneously perform different processing operations on the product, achieving parallel operations. Taking the vertical hole processing unit 55 and the deburring unit 56 as an example, while the vertical hole 71 is being processed on the product, the deburring unit 56 can deburr the already processed straight hole 72 and through hole 73. This is equivalent to completing more processing tasks in the same amount of time, effectively shortening the product processing cycle. Moreover, concentrating multiple units at the same workstation can reduce the floor space occupied by production equipment in the workshop and optimize equipment layout.

[0053] Reference Figure 10When the turntable 2 rotates until the mounting seat 31 faces the first air pump 41, the telescopic head of the first air pump 41 extends out and is connected with the air flow channel 43.

[0054] Reference Figure 10 When the product is fully placed on the contoured positioning surface 33 of the mounting seat 31, it seals the micro-pores 42, causing the air pressure within the airflow channel 43 to change. Conversely, if the product is not fully placed, the air pressure change will be different. By detecting the air pressure change, it is possible to accurately determine whether the product is fully placed. This improves the speed of product clamping inspection, minimizes product damage, and reduces the possibility of improperly clamped products entering the processing step, thereby minimizing the impact on product processing accuracy. Through the rotation of the turntable 2, each processing unit 5 sequentially processes the product on the mounting seat 31, completing multiple processes in a single clamping, facilitating the production of automotive door steel hinges 7.

[0055] Reference Figure 4 and Figure 9 When the cam 321 is in the unlocking state, the locking cam 325 is locked and the locking cam 326 is locked, so the cam 321 can be unlocked and locked.

[0056] Reference Figure 4 and Figure 9That is, the sliding seat 322 drives the sliding of the first limit block 324 and the second limit block 325, and together with the abutment seat 321, the product is clamped and fixed; when the sliding seat 322 moves toward the workpiece, the second limit block 325 first contacts the product, and the first spring 326 is compressed to generate a buffering force to avoid scratches or deformation on the product surface caused by rigid collision; after the second limit block 325 pre-contacts and initially positions, the first limit block 324 further presses the product to form a double insurance positioning, reducing the possibility of displacement of the product during processing; a number of avoidance holes 327 opened on the abutment seat 321 provide avoidance space for the processing tool.

[0057] Reference Figure 4 and Figure 5 The limiting assembly 32 also includes a limiting seat 328, which is slidably connected to the mounting seat 31 in a direction perpendicular to the limiting seat's sliding direction. When the sliding seat 322 slides toward the abutment block until the first limiting block 324 abuts the product, the limiting seat 328 moves to abut the product. The limiting seat 328 slides in a direction perpendicular to its own sliding direction, forming an orthogonal constraint with the first limiting block 324 and second limiting block 325 on the sliding seat 322, achieving three-dimensional positioning of the product. The limiting seat 328 does not contact the product until the main positioning is complete, preventing surface scratches caused by direct rigid impact.

[0058] Reference Figure 6 、 Figure 7 and Figure 8 A second air pump is also fixedly connected to the frame 1, and the driving parts are several second oil cylinders 12. The several second oil cylinders 12 are respectively fixedly connected to the frame 1. Several air nozzles 11 are slidably connected to the frame 1. A plurality of side holes are evenly opened on the lateral circumference of the end part of the side of the several air nozzles 11 close to the positioning groove 67. The several second oil cylinders 12 correspond to the several air nozzles 11 respectively. The several air nozzles 11 are respectively fixedly connected to the corresponding second oil cylinders 12, and the several air nozzles 11 are respectively connected to the second air pump.

[0059] Reference Figure 7 and Figure 8The first gear 65 is fixedly connected to the sliding block 329, and the gear 66 is rotatably connected to the mounting seat 31. The gear 66 is meshed with the first rack 64 and the second rack 65 at the same time.

[0060] Reference Figure 7 and Figure 8 When the turntable 2 needs to be positioned, the air nozzle 11 engages with the positioning groove 67, and the second air pump supplies air to the air nozzle 11, forming an air film between the two during the engagement process. During the engagement process, the air nozzle 11 moves until it abuts against the sliding block 329, driving the sliding block 329 with it. When the air nozzle 11 fully engages with the positioning groove 67, the sliding block 329 moves, connecting the first channel 61 with the second channel 62. When the air nozzle 11 fully engages with the positioning groove 67, the second air pump supplies air to the air jet channel 6, which then ejects a high-speed airflow toward the product.

[0061] Reference Figure 5 and Figure 6 , air is supplied to the air nozzle 11 through the second air pump, and a high-pressure air film is formed when the air nozzle 11 cooperates with the positioning groove 67, so that the two are in a non-contact state, reducing the direct friction between the air nozzle 11 and the positioning groove 67, reducing wear and metal fatigue, and reducing maintenance frequency; the air film airflow can blow away debris, oil and other impurities in the positioning groove 67, reducing the possibility of inaccurate positioning of the turntable 2 caused by foreign matter obstruction; the cooperation between the air nozzle 11 and the positioning groove 67 does not require a complex mechanical structure, and rapid docking can be achieved through air pressure control.

[0062] Reference Figure 7 and Figure 8 By controlling the connection between the first and second channels 61 and 62 by driving the sliding block 329 with the air nozzle 11, precise control of airflow delivery is achieved. Only when the air nozzle 11 is fully engaged with the positioning groove 67 will the airflow be delivered to the product surface through the connected air jet channel 6, preventing premature or delayed airflow delivery and improving airflow accuracy.

[0063] Reference Figure 6 When the air nozzle 11 engages with the positioning groove 67, it drives the sliding block 329 to move. The meshing transmission of the gear 66 with the first rack 64 and the second rack 65 converts the linear motion of the air nozzle 11 into precise position adjustment, ensuring accurate docking and connection between the first channel 61 and the second channel 62. This precise positioning method ensures that the airflow is delivered to the product surface at the appropriate time and location, improving the product's positioning accuracy and processing quality. The meshing structure of the gear 66 with the first rack 64 and the second rack 65 increases the stability of the entire air channel 6 connection process. During the process of the air nozzle 11 engaging with the positioning groove 67 and the movement of the sliding block 329, the transmission of the gear 66 provides stable power transmission, preventing the sliding block 329 from shaking or shifting during movement, thereby ensuring the stability of the connection between the first channel 61 and the second channel 62.

[0064] Reference Figure 5 and Figure 6 When the turntable 2 is positioned, the second air pump sprays high-speed airflow toward the product surface through the jet channel 6. During drilling, milling and other processes, the airflow can instantly blow away the metal chips and coolant residues on the profiling positioning surface 33 and the product surface, avoiding the clamping deviation caused by the debris on the profiling positioning surface 33 during the later clamping process; the high-speed airflow forms local forced convection in the processing area, taking away the cutting heat. During the milling or drilling process, the cooling airflow reduces the friction temperature between the tool and the workpiece, reduces the thermal wear of the carbide tool, and reduces the dimensional deviation caused by the thermal expansion of the workpiece.

[0065] Reference Figure 6 and Figure 7 A pressure sensor is installed within the jet channel 6 and is connected to the control system. When the pressure within the second channel 62 is abnormal, the control system promptly adjusts the air supply pressure of the third air pump to ensure the proper functioning of the limiter assembly 32. The pressure sensor collects real-time airflow pressure data within the jet channel 6 and transmits it to the control system. When a pressure anomaly is detected, the system automatically adjusts the air supply pressure of the third air pump. This stable airflow pressure ensures consistent cleaning, cooling, and positioning results.

[0066] Reference Figure 11 and Figure 12 In summary, the following is a summary of the processing sequence of the special manufacturing equipment for automobile door steel hinge 7, which is developed according to the process steps and technical coordination logic:

[0067] S1. Product Clamping and Initial Positioning: A door-shaped steel hinge 7 to be processed is manually or robotically placed on the contoured positioning surface 33 of the mounting base 31. Positioning detection mechanism 4 uses micro-pores 42 and airflow channels 43 to verify that the product is completely aligned with the contoured positioning surface 33. If the product is fully positioned, micro-pores 42 are sealed, and the air pressure in airflow channel 43 increases, triggering a feedback signal from first air pump 41. If the product is not fully positioned, resulting in abnormal air pressure fluctuations, the system triggers an alarm prompting re-clamping.

[0068] S2. Three-Dimensional Positioning: First cylinder 323 drives sliding seat 322 toward the workpiece. Second stopper 325 first contacts the workpiece, and first spring 326 compresses and cushions the workpiece to prevent rigid impact. First stopper 324 then presses the workpiece, creating a dual horizontal constraint. Stopper seat 328 then slides vertically against the workpiece, achieving three-dimensional positioning.

[0069] S3. Turntable 2 Indexing and Air Film Positioning: Turntable 2 rotates to the next processing station, and air nozzle 11 engages with positioning groove 67 on turntable 2. A high-pressure air film is formed between air nozzle 11 and positioning groove 67, achieving contactless positioning. Gear 66 drives the sliding block 329, connecting the first channel 61 with the second channel 62. The high-speed airflow sweeps across the product surface, removing any dust and other impurities, providing a clean surface environment for subsequent processing.

[0070] S4. Multiple steps in sequence:

[0071] Straight hole processing unit 51: The straight hole processing unit 51 is equipped with a high-precision drilling device. It has two drill bits and can simultaneously drill the straight holes 72 on the left hinge 7 and the right hinge 7. After the processing is completed, the drilling device returns to the initial position and waits for the next processing instruction.

[0072] Through-hole machining unit 52: After the straight hole 72 is machined, turntable 2 rotates again, delivering the product to the through-hole machining unit 52. Through-hole machining unit 52 uses a specialized tool for machining through-holes 73. First, the straight hole machining unit 51, equipped with only one drill bit, drills through-holes 73 on both the left and right hinges 7, achieving the desired dimensions and ensuring the required alignment between the through-holes 73 on the left and right hinges 7. After machining is complete, the drilling equipment returns to its initial position, awaiting the next machining instruction.

[0073] Milling unit 53: Located in the same workstation as through-hole machining unit 52, milling unit 53 is mounted on gantry 57, which is fixedly connected to frame 1. Depending on the surface milling requirements of door-shaped steel hinge 7, different types of milling cutters, such as surface milling cutters and end mills, can be installed to achieve efficient and high-precision milling of the product surface, removing excess material. After processing is completed, milling unit 53 returns to its initial position and awaits the next processing instruction.

[0074] Oblique hole processing unit 54: After the product has been processed through the through hole 73 and milled, the turntable 2 continues to rotate to the oblique hole processing unit 54 station. The oblique hole processing unit 54 consists of two oblique drilling devices. Both drilling devices have two drill bits for drilling and tapping respectively. The two drilling devices drill and tap the oblique holes 74 on the left hinge 7 and the right hinge 7 respectively. After the processing is completed, the oblique hole processing unit 54 returns to the initial position and waits for the next processing instruction;

[0075] Vertical hole processing unit 55: After the product is processed through the oblique hole 74, turntable 2 continues to rotate to the vertical hole processing unit 55. Vertical hole processing unit 55 uses customized vertical drilling equipment with two drill bits: one for drilling the vertical hole 71 and the other for deburring and chamfering the hole opening. It can accurately drill the vertical hole 71 at the specific location of the product. The drilling process strictly controls the depth and verticality to ensure that it meets the design standards. After the processing is completed, the equipment automatically resets and prepares for the next round of processing.

[0076] Deburring unit 56: The deburring unit 56 is located at the same workstation as the vertical hole processing unit 55. While processing the vertical hole 71 of the product, the deburring unit 56 can deburr the processed straight holes 72 and through holes 73. This is equivalent to completing more processing tasks in the same time, effectively shortening the product processing cycle.

[0077] S5. Dynamic Cleaning and Pressure Monitoring: During machining, the air jet channel 6 of the positioner 328 continuously sprays high-speed air to remove debris and cool the machining area. A pressure sensor monitors the airflow pressure in real time, and the control system dynamically adjusts the air supply pressure of the third air pump. After machining is complete, the turntable 2 returns to its initial position, and the air jet channel 6 reverses the flow to purge the contoured positioning surface 33, preparing for the next cycle.

[0078] Of course, the above are only typical examples of the present application. In addition, the present application may have many other specific implementation methods. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present application.

Claims

1. A special manufacturing equipment for automobile door steel hinges, comprising a frame (1), a turntable (2) rotatably connected to the frame (1), and a plurality of clamping tools (3) for clamping products evenly distributed on the turntable (2), characterized in that: It also includes a positioning detection mechanism (4) and multiple processing units (5); Each set of the clamping fixtures (3) comprises a mounting seat (31) having a product-imitation positioning surface (33) and a limiting assembly (32), wherein the limiting assembly (32) is used to fix and limit the product placed on the imitation positioning surface (33), the mounting seat (31) is fixedly connected to the turntable (2), and the positioning detection mechanism (4) is used to detect whether the product is completely placed on the imitation positioning surface (33) of the mounting seat (31), and the positioning detection mechanism (4) comprises a first air pump (41 ), the first air pump (41) is fixedly connected to the frame (1), a micro air hole (42) is provided on the contour positioning surface (33) of the mounting seat (31), an air flow channel (43) is provided inside the mounting seat (31), one end of the air flow channel (43) is connected to the micro air hole (42) on the contour positioning surface (33), and when the turntable (2) rotates until the mounting seat (31) faces the first air pump (41), the first air pump (41) is connected to the air flow channel (43); A plurality of groups of processing units (5) are sequentially arranged along the circumference of the turntable (2) to process the workpieces on the turntable (2) in sequence; The limiting assembly (32) further comprises a limiting seat (328) and a driving member, wherein the limiting seat (328) is slidably connected to the mounting seat (31), a positioning groove (67) is provided on the mounting seat (31), and an air jet channel (6) is provided on the limiting seat (328), one end of the air jet channel (6) is connected to the positioning groove (67), and the other end thereof faces the side of the contoured positioning surface (33) on the mounting seat (31), and a plurality of air jet nozzles (11) that can be plugged and matched with the positioning groove (67) are slidably connected to the frame (1), and when the turntable (2) is positioned, the driving member drives the air jet nozzles (11) to be plugged and matched with the positioning groove (67), and when the hinge (7) is in a processing state, the limiting seat (328) moves toward one side of the hinge (7) until it abuts against the hinge (7), and when the product is in a processing state, the air jet channel (6) sprays a high-speed airflow toward one side of the product; The jet channel (6) includes a first channel (61) and a second channel (62), the second channel (62) is opened on the limit seat (328), one end of which faces the side of the contoured positioning surface (33) of the mounting seat (31), and a sliding block (329) is slidably connected to the mounting seat (31) along the sliding direction of the sliding seat (322), and the sliding block (329) is slidably connected to the limit seat (328) at the same time. The first channel (61) is opened on the sliding seat (328). The sliding block (329) is provided with the positioning groove (67). When the air nozzle (11) is engaged with the positioning groove (67), the air nozzle (11) moves to abut against the sliding block (329) and drives the sliding block (329) to move together. When the air nozzle (11) is fully engaged with the positioning groove (67), the sliding block (329) moves to connect the first channel (61) with the second channel (62). The limiting seat (328) is provided with a first rack (64), the sliding block (329) is provided with a second rack (65), the mounting seat (31) is rotatably connected with a gear (66), the gear (66) is simultaneously engaged with the first rack (64) and the second rack (65), and the sliding block (329) is provided with a second spring (68), which always drives the sliding block (329) to slide toward the side away from the turntable (2).

2. The special manufacturing equipment for automobile door steel hinges according to claim 1, characterized in that: The limiting assembly (32) includes an abutting seat (321), a sliding seat (322) and a first oil cylinder (323). The sliding seat (322) is slidably connected to the frame (1). A first limiting block (324) is fixedly connected to the sliding seat (322). A second limiting block (325) is slidably connected to the sliding seat (322) along the sliding direction of the sliding seat (322). A first spring (326) is sleeved on the second limiting block (325). The first spring (326) always drives the first limiting block (325) to move in a direction perpendicular to the sliding direction of the sliding seat (322). The second limit block (325) is moved to slide toward a side away from the first oil cylinder (323); the abutment seat (321) is fixedly connected to the mounting seat (31); a plurality of avoidance holes (327) are provided on the abutment seat (321); the contoured positioning surface (33) on the mounting seat (31) is located between the sliding seat (322) and the abutment seat (321); when the sliding seat (322) moves toward the workpiece, the second limit block (325) abuts against the product first compared to the first limit block (324).

3. The special manufacturing equipment for automobile door steel hinges according to claim 1, characterized in that: The frame (1) is further provided with a second air pump, and a plurality of the air nozzles (11) are respectively connected to the second air pump. The air nozzles (11) are provided with side holes. The second air pump supplies air to the air nozzles (11), so that an air film is formed between the side holes of the air nozzles (11) and the positioning grooves (67) during the matching process between the air nozzles (11) and the positioning grooves (67). When the air nozzles (11) and the positioning grooves (67) are fully matched, the second air pump supplies air to the air jet channel (6).

4. The special manufacturing equipment for automobile door steel hinges according to claim 1, characterized in that: A pressure sensor is provided in the jet channel (6), and the pressure sensor is connected to a control system. When the pressure in the second channel (62) is abnormal, the control system can timely adjust the air supply pressure of the third air pump to ensure the normal operation of the limit assembly (32).

5. The special manufacturing equipment for automobile door steel hinges according to claim 1, characterized in that: The plurality of processing units (5) respectively include a straight hole processing unit (51) for processing a straight hole (72) of a product on a mounting seat (31), a through hole processing unit (52) for processing a through hole (73) of a product on a mounting seat (31), a milling unit (53) for milling a surface of a product on a mounting seat (31), an inclined hole processing unit (54) for processing an inclined hole (74) of a product on a mounting seat (31), a vertical hole processing unit (55) for processing a vertical hole (71) of a product on a mounting seat (31), and a deburring unit (56) for deburring the straight hole (72) and the through hole (73), wherein the through hole processing unit (52) and the milling unit (53) are located at the same station and process simultaneously, and the vertical hole processing unit (55) and the deburring unit (56) are located at the same station and process simultaneously.

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