CN109746682B - Drilling and chamfering processing line for vehicle door part - Google Patents
Drilling and chamfering processing line for vehicle door part Download PDFInfo
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- CN109746682B CN109746682B CN201910137953.5A CN201910137953A CN109746682B CN 109746682 B CN109746682 B CN 109746682B CN 201910137953 A CN201910137953 A CN 201910137953A CN 109746682 B CN109746682 B CN 109746682B
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Abstract
The invention relates to the field of automobile part manufacturing, and discloses a drilling and chamfering processing line for an automobile door part; the device comprises a special drilling machine, a mechanical arm and a special chamfering machine; the special drilling machine comprises a machine body, wherein a hydraulic turntable is arranged on the machine body, and six drilling clamps are arranged on the hydraulic turntable at equal angles; the six drilling fixtures correspond to six stations; a feeding rack, a drilling pin shaft hole mechanism, a first detection mechanism, a reaming mechanism, a vertical drilling mechanism and a second detection mechanism are sequentially arranged on the lathe bed corresponding to each station; the mechanical arm is positioned on one side of the station corresponding to the second detection mechanism; the special chamfering machine comprises a mounting frame, a fixture servo sliding table fixedly mounted on the mounting frame, a vertical chamfering mechanism and two horizontal chamfering mechanisms. Each process is carried out simultaneously, so that the processing time of the workpiece can be shortened, and the processing efficiency is improved; the workpiece left and right pieces are judged through the photoelectric switch, the sliding table is moved to position, the processed workpiece is pushed out through the material ejecting cylinder, and chamfering and blanking automation is achieved.
Description
Technical Field
The invention relates to the field of automobile part manufacturing, in particular to a drilling and chamfering processing line for an automobile door part.
Background
The door hinge is an important part of an automobile, connects the door and the automobile body, and is used for realizing the opening and closing of the door and facilitating the entrance and exit of a driver and passengers. The automobile door hinge is divided into a door piece and a body piece. The workpiece 10 shown in fig. 1 is an L-shaped door hinge, which is a door piece; includes a vertical portion 102 and a mounting portion 101 perpendicular to each other; the upper end of the vertical part 102 is cylindrical and a pin shaft hole 1021 is formed at the shaft center; a bottom mounting hole 1011 is formed in the middle of the mounting portion 101; the vertical portion 102 is located at one side of the mounting portion 101, that is, one side surface of the vertical portion 102 in the vertical direction is located on the symmetrical plane of the mounting portion 101; the workpiece 10 is mounted on the left and right doors, respectively, and is divided into left and right pieces which are mirror images of each other.
Chinese patent No. CN103231088B, application No. 201310173293.9, discloses a multi-station turntable vertical drilling machine, wherein a plurality of drilling clamp devices are arranged along the circumferential direction of an angle dividing table, a plurality of machining stations and a clamping station are arranged on the machine body corresponding to the plurality of drilling clamp devices, an independent drill spindle feeding device is arranged corresponding to each machining station, the crankshaft workpiece is clamped by the drilling clamp devices, and the drill spindle is used for drilling the crankshaft workpiece through linkage control of the drill spindle feeding devices, and the drill spindle feeding devices can adjust the position and the angle of the hole according to requirements; however, the drilling jig cannot simultaneously clamp and process two workpieces which are mirror images of each other, and when two workpieces which are mirror images of each other are processed, the drilling jig needs to be reinstalled and the position of the drill spindle feeding device needs to be adjusted.
Disclosure of Invention
The invention provides a vehicle door part drilling and chamfering processing line, aiming at the defect that a drilling clamp in the prior art cannot simultaneously clamp and process two workpieces which are mirror images.
In order to solve the technical problem, the invention is solved by the following technical scheme:
a drilling and chamfering processing line for vehicle door parts comprises a special drilling machine, a mechanical arm and a special chamfering machine; the special drilling machine comprises a machine body, wherein a horizontally arranged hydraulic turntable is arranged on the machine body, and six drilling clamps are arranged on the hydraulic turntable at equal angles; the six drilling fixtures correspond to six stations; a feeding rack, a drilling pin shaft hole mechanism, a first detection mechanism, a reaming mechanism, a vertical drilling mechanism and a second detection mechanism are sequentially arranged on the lathe bed corresponding to each station; the hydraulic turntable rotates 60 degrees each time; the mechanical arm is positioned on one side of the station corresponding to the second detection mechanism;
the special chamfering machine comprises a mounting frame and a fixture servo sliding table fixedly mounted on the mounting frame, wherein the servo sliding table comprises a sliding table and a servo motor used for controlling the sliding table to move; a chamfering clamp is fixedly arranged on the sliding table; when the workpiece is arranged on the chamfering clamp, the vertical part faces downwards; the sliding table is also provided with a material ejecting cylinder for unloading the workpiece from the chamfering fixture;
the mounting frame is also provided with a vertical chamfering mechanism for processing the chamfer of the mounting hole at the bottom and two horizontal chamfering mechanisms for processing the chamfers of the pin shaft holes; the two horizontal chamfering mechanisms are oppositely arranged; a cutter of the horizontal chamfering mechanism is positioned at the height corresponding to a rear pin shaft hole of the workpiece arranged on the chamfering fixture; a cutter of the vertical chamfering mechanism corresponds to a bottom mounting hole after a workpiece is mounted on the chamfering clamp; the workpiece drives the chamfering fixture to move by moving the sliding table to adjust the machining position;
the device also comprises a booster air pump, a hydraulic station and a control electronic box; a controller, a hydraulic control system electrically connected with the controller and a pneumatic control system electrically connected with the controller are arranged in the control electric box; the hydraulic turntable is connected with the hydraulic station and is controlled by a hydraulic control system; the material ejection cylinder is connected with the pressurization air pump through a pipeline and is controlled through a pneumatic control system; the drilling and pin shaft hole mechanism, the first detection mechanism, the reaming mechanism, the vertical drilling mechanism, the second detection mechanism, the servo sliding table, the vertical chamfering mechanism and the two horizontal chamfering mechanisms are electrically connected with the controller. The workpiece after the drilling special machine is machined through the mechanical arm is accurately placed on the chamfering special machine, the left workpiece and the right workpiece of the workpiece are judged through the photoelectric switch, and the workpiece is moved and positioned through the servo sliding table so as to machine a corresponding chamfer.
Preferably, the drilling clamp is provided with a left workpiece and a right workpiece at the same time and comprises a bottom plate fixedly arranged on the hydraulic turntable; two positioning installation seats for installing workpieces are symmetrically arranged at the upper end of the bottom plate; two first oil cylinders which are symmetrically arranged are fixedly arranged between the two positioning installation seats; two sides of the two positioning installation seats are respectively provided with a second oil cylinder; the first oil cylinder is vertically arranged, and the second oil cylinder is horizontally arranged; the first oil cylinder and the second oil cylinder are both rotary oil cylinders; the output end of the first oil cylinder is fixedly connected with an upper pressure plate used for fixing the mounting part; the positioning mounting seat also comprises a side positioning block which is vertically arranged; the output end of the second oil cylinder is fixedly connected with a side pressure plate used for limiting the side surface of the vertical part, and the installation position of the vertical part is limited through a side surface positioning block and the side pressure plate; a bottom positioning block for positioning the mounting part is fixedly connected to the positioning mounting seat;
each first oil cylinder and each second oil cylinder are connected with the hydraulic station and controlled by the hydraulic control system. Through the restriction of the bottom positioning block on multiple directions of the workpiece, the workpiece can be accurately installed during manual installation, and unnecessary waste caused by installation errors is reduced. The workpiece is installed on the drilling fixture, the vertical part faces upwards, and the installation part faces towards the middle.
Preferably, the chamfering fixture comprises two vertically arranged fixing columns; the two fixed columns are mirror images of each other; a clamping groove for limiting the position of a workpiece is formed at the upper end of the fixing column; a positioning pin is formed on the clamping groove corresponding to the bottom mounting hole; the length of the positioning pin is half of the thickness of the mounting part; the clearance between the workpiece and the upper end part of one fixed column is 2-4cm after the workpiece is arranged on the other fixed column; the liftout cylinder is located between the two fixed columns. And pushing the workpiece out of the chamfering fixture through the material ejecting cylinder after the workpiece is machined.
Preferably, the end part of the mechanical arm is provided with a pneumatic clamping jaw which is connected with the booster air pump through a pipeline, and the pneumatic clamping jaw is controlled by a pneumatic control system; the pneumatic clamping jaw comprises a clamping jaw for clamping a workpiece; the middle of the pneumatic clamping jaw is fixedly connected with a middle positioning pin, and the middle positioning pin is inserted into the pin shaft hole when the pneumatic clamping jaw clamps a workpiece; the end part of the clamping jaw is fixedly connected with a clamping jaw block corresponding to the workpiece. The arm is fixed a position the work piece through middle locating pin to injecing the work piece through the clamping jaw simultaneously, when making the arm remove the work piece from the special plane of drilling to the special plane of chamfer on, the position of work piece can keep fixed, makes the location accurate.
Preferably, the feeding rack is also provided with a mistake proofing mechanism; the mistake proofing mechanism comprises a pressing cylinder which is vertically arranged; the output end of the pressing cylinder is fixedly connected with a pressing block and a checking mechanism; the inspection mechanism is electrically connected with the controller;
the inspection mechanism comprises a proximity switch fixedly arranged at the lower end of the pressing block; the lower end of the proximity switch corresponds to the corresponding position of the workpiece after installation; the proximity switch is electrically connected with the controller;
the device also comprises a pressing cylinder controlled by a pneumatic control system; the compressing cylinder is connected with the booster pump through a pipeline. Whether the workpiece is installed wrongly or not can be found in time through the mistake-proofing mechanism, and timely adjustment is carried out, so that waste caused by workpiece machining errors is avoided.
Preferably, the pin hole drilling mechanism comprises a servo mechanical sliding table; a first motor is arranged on the servo mechanical sliding table; an output shaft of the first motor is fixedly connected with a boring and milling power head, and a cutter for processing a pin shaft hole is mounted on the boring and milling power head; the vertical drilling mechanism comprises an upright post, a servo mechanical sliding table, a first motor and a boring and milling power head, wherein the servo mechanical sliding table is the same as the drilling and pinning shaft hole mechanism; the horizontal chamfering mechanism and the pin shaft hole drilling mechanism and the vertical chamfering mechanism and the vertical drilling mechanism have the same structure, and a cutter for processing the chamfer of the pin shaft hole or the bottom mounting hole is arranged on the corresponding boring and milling power head; a second motor for moving the sliding table is arranged in the servo mechanical sliding table; the first motor is a three-phase asynchronous motor; the second motor is a servo motor; the reaming mechanism comprises a pneumatic feeding power head, and a reamer is mounted on the pneumatic feeding power head;
the pneumatic feeding power head is connected with the booster air pump through a pipeline and is controlled through a pneumatic control system.
Preferably, the first detection mechanism comprises a bracket, a probe and a first air cylinder for driving the probe to move; a probe of the first detection mechanism is positioned on the outer side of the drilling clamp and faces the pin shaft hole; the second detection mechanism and the first detection mechanism have the same structure, and the probe vertically faces to the bottom mounting hole;
the pneumatic control system also comprises a first air cylinder and a second air cylinder which are controlled by the pneumatic control system; the first air cylinder and the second air cylinder are connected with the booster air pump through pipelines; the probe is electrically connected with the controller. When the probe smoothly passes through the stroke of the first air cylinder, the drilling is finished; failure of the probe to effectively pass through the pin hole or bottom mounting hole indicates either incomplete drilling or a broken blade.
Preferably, the bottom positioning block is positioned at one side of the middle part and is formed with a vertical stop block which defines one end position of the installation part; the upper end of the vertical stop block is provided with a transverse hook part for limiting the upper end surface of the mounting part. Through the restriction of the bottom positioning block on multiple directions of the workpiece, the workpiece can be accurately installed during manual installation, and unnecessary waste caused by installation errors is reduced. The workpiece is installed on the drilling fixture, the vertical part faces upwards, and the installation part faces towards the middle.
Preferably, the chamfering fixture is provided with two photoelectric switches electrically connected with the controller; the two photoelectric switches are used for judging the left and right parts of the workpiece; the two photoelectric switches are respectively positioned: the left workpiece and the right workpiece are respectively arranged at the gap between the corresponding fixed column and the other fixed column. The photoelectric switch is used for judging the left and right parts of the workpiece, so that the servo sliding table is controlled to position the chamfering fixture.
The steps of 6 processing stations corresponding to the special drilling machine are respectively as follows:
1. manually installing a left workpiece and a right workpiece;
2. processing a pin shaft hole through a pin shaft hole drilling mechanism;
3. detecting whether the pin shaft hole is machined or not through a first detection mechanism;
4. the reaming mechanism reams the pin shaft hole;
5. processing a bottom mounting hole by the vertical drilling mechanism;
6. the second detection mechanism detects whether the bottom mounting hole is machined and discharges through the mechanical arm.
The workpiece after the drilling special machine is machined through the mechanical arm is accurately placed on the chamfering special machine, the left workpiece and the right workpiece of the workpiece are judged through the photoelectric switch, and the workpiece is moved and positioned through the servo sliding table so as to machine a corresponding chamfer.
According to the invention, the hydraulic turntable rotates for a circle to pass through six stations through the steps, so that all processing procedures corresponding to the workpiece can be completed; each process is carried out simultaneously, so that the processing time of the workpiece can be shortened, and the processing efficiency is improved; a single drilling clamp can simultaneously clamp a pair of workpieces and simultaneously carry out machining detection, and the drilling clamp and the relative positions of the mechanisms corresponding to the steps are fixed, so that the machining precision of each procedure is ensured, and the cost and the loss are reduced; install the work piece to the chamfer anchor clamps through the arm to carry out the chamfer processing back to round pin shaft hole, bottom mounting hole in proper order, judge the work piece through photoelectric switch automatically and control the piece and process the location through removing the slip table, release the work piece of processing completion from the chamfer anchor clamps through the action of liftout cylinder, realized the automation of chamfer processing and unloading.
Drawings
Fig. 1 is a schematic view of the structure of a workpiece.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic structural diagram of the special drilling machine.
FIG. 4 is a schematic structural diagram of the chamfering machine.
Fig. 5 and 6 are schematic structural views of the drilling jig.
Fig. 7 and 8 are schematic structural views of the chamfering jig.
Fig. 9 is a schematic diagram of a pneumatic jaw configuration.
The names of the parts indicated by the numerical references in the drawings are as follows: 1-special drilling machine, 11-lathe bed, 12-hydraulic rotary table, 13-drilling fixture, 131-bottom plate, 132-first oil cylinder, 133-second oil cylinder, 134-side press plate, 1341-machining opening, 135-upper press plate, 1351-machining through hole, 136-positioning mounting seat, 1361-side positioning block, 1362-upper end limiting block, 137-bottom positioning block, 1371-vertical stop block, 1372-transverse hook, 14-feeding rack, 15-drilling pin shaft hole mechanism, 16-first detection mechanism, 17-reaming mechanism, 18-vertical drilling mechanism, 19-second detection mechanism, 2-mechanical arm, 21-pneumatic clamping jaw, 211-211clamping jaw, 1-clamping jaw block, 212-middle positioning pin, 3-special chamfering machine, 31-mounting rack, 32-servo sliding table, 321-sliding table, 33-chamfering fixture, 331-fixed column, 3311-clamping groove, 2-positioning pin, 3313-slope, 3314-side press plate, 3311-side press plate, 3313-slope, 332-material ejection cylinder, 34-horizontal chamfering mechanism, 35-vertical chamfering mechanism, 10-workpiece, 101-installation part, 1011-bottom installation hole, 102-vertical part and 1021-pin shaft hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
A drilling and chamfering processing line for vehicle door parts comprises a special drilling machine 1, a mechanical arm 2 and a special chamfering machine 3; the special drilling machine 1 comprises a machine body 11, wherein a hydraulic rotary table 12 which is horizontally arranged is arranged on the machine body 11, and six drilling clamps 13 are arranged on the hydraulic rotary table 12 at equal angles; the six drilling fixtures 13 correspond to six stations; the lathe bed 11 is sequentially provided with a feeding rack 14, a drilling and pin shaft hole mechanism 15, a first detection mechanism 16, a reaming mechanism 17, a vertical drilling mechanism 18 and a second detection mechanism 19 corresponding to each station; the hydraulic rotary table 12 is a six-indexing hydraulic rotary table which rotates 60 degrees each time; the mechanical arm 2 is positioned at one side of the station corresponding to the second detection mechanism 19.
The special chamfering machine 3 comprises a mounting frame 31 and a fixture servo sliding table 32 fixedly mounted on the mounting frame 31, wherein the servo sliding table 32 comprises a sliding table 321 and a servo motor for controlling the sliding table to move; the sliding table 321 is fixedly provided with a chamfering clamp 33; the vertical portion 102 faces downward when the workpiece 10 is mounted on the chamfering jig 33; the slide table 321 is also provided with an ejector cylinder 332 for detaching the workpiece 10 from the chamfering jig 33.
The mounting rack 31 is also provided with a vertical chamfering mechanism 35 for processing the chamfer of the bottom mounting hole 1011 and two horizontal chamfering mechanisms 34 for processing the chamfer of the pin shaft hole 1021; the two horizontal chamfering mechanisms 34 are oppositely arranged; the cutter of the horizontal chamfering mechanism 34 is positioned at the height corresponding to the pin shaft hole 1021 after the workpiece 10 is installed on the chamfering fixture 33; the tool of the vertical chamfering mechanism 35 corresponds to the bottom mounting hole 1011 after the workpiece 10 is mounted on the chamfering fixture 33; the workpiece 10 is adjusted in the machining position by moving the slide table 321 to move the chamfering jig 33.
The drilling clamp 13 is provided with a left workpiece 10 and a right workpiece 10 at the same time and comprises a bottom plate 131 fixedly arranged on the hydraulic turntable 12; two positioning installation seats 136 for installing the workpiece 10 are symmetrically arranged at the upper end of the bottom plate 131; two first oil cylinders 132 which are symmetrically arranged are fixedly arranged between the two positioning installation seats 136; two sides of the two positioning installation seats 136 are respectively provided with a second oil cylinder 133; the first oil cylinder 132 is vertically arranged, and the second oil cylinder 133 is horizontally arranged; the first oil cylinder 132 and the second oil cylinder 133 are both rotary oil cylinders; an upper pressure plate 135 for fixing the mounting part 101 is fixedly connected to the output end of the first oil cylinder 132; the positioning mount 136 further includes a vertically disposed side positioning block 1361; a side pressure plate 134 for defining a side surface of the vertical part 102 is fixedly connected to an output end of the second cylinder 133, and an installation position of the vertical part 102 is limited by a side positioning block 1361 and the side pressure plate 134; a bottom positioning block 137 for positioning the mounting part 101 is fixedly connected to the positioning mounting seat 136; a vertical stop 1371 which is positioned at one side of the middle of the bottom positioning block 137 and is provided with a limit installation part 101; the upper end of the vertical stopper 1371 is formed with a horizontal hook 1372 for limiting the upper end surface of the mounting portion 101. Due to the limitation of the bottom positioning block 137 on the workpiece 10 in multiple directions, the workpiece 10 can be accurately installed during manual installation, and unnecessary waste caused by installation errors is reduced. The workpiece 10 is mounted on the boring jig 13 with the rear vertical portion 102 facing upward and the mounting portion 101 facing in the middle.
The chamfering jig 33 includes two vertically disposed fixing posts 331; the two fixing posts 331 are mirror images of each other; a clamping groove 3311 for limiting the position of the workpiece 10 is formed at the upper end of the fixing column 331; a positioning pin 3312 is formed on the clamping groove 3311 corresponding to the bottom mounting hole 1011; the length of the positioning pin 3312 is half the thickness of the mounting portion 101; the gap between the workpiece 10 installed on one fixed column 331 and the upper end of the other fixed column 331 is 2-4 cm; the material ejecting cylinder 332 is located between the two fixing columns 331, and when the material ejecting cylinder 332 is located at the lower end of the stroke, the upper end of the material ejecting cylinder 332 is abutted against the end of the vertical portion 102. After the workpiece 10 is machined, the workpiece 10 is pushed out of the chamfering jig 33 by the ejector cylinder 332. Two photoelectric switches electrically connected with the controller are mounted on the chamfering fixture 33; the two photoelectric switches are used for judging the left and right parts of the workpiece 10; the two photoelectric switches are respectively positioned: the left and right workpieces 10 are respectively mounted at the gap between the corresponding fixed column 331 and the other fixed column 331. The signal detected by the photoelectric switch indicates whether the left side is present or not, or whether the left side is present or not, and respectively corresponds to the situation of the left and right workpieces of the workpiece 10. The photoelectric switch is used for judging the left and right parts of the workpiece 10 so as to control the servo sliding table 32 to position the chamfering fixture 33.
The device also comprises a booster air pump, a hydraulic station and a control electronic box; a controller, a hydraulic control system electrically connected with the controller and a pneumatic control system electrically connected with the controller are arranged in the control electric box; each first oil cylinder 132, each second oil cylinder 133 and the hydraulic rotary table 12 are connected with the hydraulic station and controlled by a hydraulic control system; the material ejecting cylinder 332 is connected with the booster air pump through a pipeline and is controlled by a pneumatic control system; the drilling shaft hole mechanism 15, the first detection mechanism 16, the reaming mechanism 17, the vertical drilling mechanism 18, the second detection mechanism 19, the servo sliding table 32, the vertical chamfering mechanism 35 and the two horizontal chamfering mechanisms 34 are electrically connected with a controller.
The end part of the mechanical arm 2 is provided with a pneumatic clamping jaw 21 connected with a pressurization air pump through a pipeline, and the pneumatic clamping jaw 21 is controlled by a pneumatic control system; the pneumatic gripper 21 includes a gripper 211 for gripping the workpiece 10; the middle of the pneumatic clamping jaw 21 is fixedly connected with a middle positioning pin 212, and the middle positioning pin 212 is inserted into the pin shaft hole 1021 when the pneumatic clamping jaw 21 clamps the workpiece 10; a clamping jaw block 2111 is fixedly connected to the end part of the clamping jaw 211 corresponding to the workpiece 10; the jaw block 2111 is made of a rubber material. The mechanical arm 2 positions the workpiece 10 through the middle positioning pin 212, and simultaneously limits the workpiece 10 through the clamping jaw 21, so that when the mechanical arm 2 moves the workpiece 10 from the special drilling machine 1 to the special chamfering machine 3, the position of the workpiece 10 can be kept fixed, and the positioning is accurate.
Limiting notches for positioning are formed in one ends, far away from the workpiece 10, of the upper pressing plate 135 and the side pressing plate 134 after the workpiece 10 is pressed tightly; the bottom plate 131 and the side positioning block 1361 are provided with positioning pins corresponding to the limiting notches. A processing through hole 1351 for a processing tool to pass through and a processing opening 1341 are respectively formed on the upper pressure plate 135 corresponding to the bottom mounting hole 1011 and the side pressure plate 134 corresponding to the pin shaft hole 1021. In the process of pressing the workpiece 10, the upper press plate 135 and the side press plate 134 adjust the error generated by the first oil cylinder 132 or the second oil cylinder 133 through the positioning pins, so that the final positioning error is within the error allowable range, the machining tool can smoothly pass through the machining through hole 1351 or the machining opening 1341, and the situation that the machining tool is damaged due to the fact that the machining tool faces the upper press plate 135 or the side press plate 134 is prevented.
Further, an upper end limiting block 1362 is mounted on the side positioning block 1361 corresponding to the upper end of the workpiece 10.
The pin-drilling shaft hole mechanism 15 comprises a servo mechanical sliding table; a first motor is arranged on the servo mechanical sliding table; an output shaft of the first motor is fixedly connected with a boring and milling power head, and a cutter for processing a pin shaft hole 1021 is installed on the boring and milling power head; the vertical drilling mechanism 18 comprises an upright column, a servo mechanical sliding table, a first motor and a boring and milling power head which are the same as the drilling pin shaft hole mechanism 15, wherein a cutter for processing a bottom mounting hole 1011 is mounted on the boring and milling power head; a second motor for moving the sliding table is arranged in the servo mechanical sliding table; the first motor is a three-phase asynchronous motor; the second motor is a servo motor; the reaming mechanism 17 comprises a pneumatic feed power head on which a reamer is mounted.
The first detection mechanism 16 comprises a bracket, a probe and a first air cylinder for driving the probe to move; the probe of the first detection mechanism 16 is positioned outside the drilling jig 13 and faces the pin shaft hole 1021; the second detection mechanism 19 is identical in structure to the first detection mechanism 16 and the probe is directed vertically toward the bottom mounting hole 1011. When the probe smoothly passes through the stroke of the first air cylinder, the drilling is finished; failure of the probe to effectively pass through the pin hole 1021 or the bottom mounting hole 1011 indicates either an incomplete borehole or a broken blade.
The device also comprises a hydraulic station, a booster air pump and a control electronic box; a controller, a hydraulic control system electrically connected with the controller and a pneumatic control system electrically connected with the controller are installed in the control electric box; each first oil cylinder 132, each second oil cylinder 133 and the hydraulic rotary table 12 are connected with a hydraulic station, and each first oil cylinder 132, each second oil cylinder 133 and the hydraulic rotary table 12 are controlled by a hydraulic control system; the first air cylinder, the second air cylinder and the pneumatic feeding power head are all connected with a booster air pump through pipelines and are controlled through a pneumatic control system; the drilling and pin shaft hole mechanism 15, the first detection mechanism 16, the reaming mechanism 17, the vertical drilling mechanism 18 and the second detection mechanism 19 are electrically connected with the controller.
Further, a spring and a contact switch electrically connected with the controller are mounted on the probe, and the contact switch corresponds to the probe and is positioned at the other end of the probe far away from the workpiece 10; when the probe cannot pass through the pin shaft hole 1021 or the bottom mounting hole 1011 in the stroke range of the first cylinder, the probe triggers the contact switch and feeds back the contact switch to the controller, so that the hydraulic rotary table 12 stops working, stops working after all working procedures on all stations are finished, and sends out an alarm signal.
Furthermore, the probe is hollow and is connected with the booster pump through a pipeline. And blowing air to the processed pin shaft hole 1021 or the bottom mounting hole 1011 through the hollow probe to remove scraps.
The steps of 6 processing stations corresponding to the special drilling machine 1 are respectively as follows:
1. manually installing a left workpiece 10 and a right workpiece 10;
2. processing a pin shaft hole 1021 through the pin shaft hole drilling mechanism 15;
3. detecting whether the pin shaft hole 1021 is machined by the first detection mechanism 16;
4. the reaming mechanism 17 reams the pin shaft hole 1021;
5. the vertical drilling mechanism 18 processes a bottom mounting hole 1011;
6. the second detection mechanism 19 detects whether the bottom mounting hole 1011 is completely machined and discharges the material through the mechanical arm.
The workpiece 10 after the drilling special machine 1 is machined through the mechanical arm 2 is accurately placed on the chamfering special machine 3, the left workpiece and the right workpiece of the workpiece 10 are judged through the photoelectric switch, and the workpiece is moved and positioned through the servo sliding table 32 so as to machine a corresponding chamfer.
According to the invention, the hydraulic turntable 12 rotates for a circle to pass through six stations through the steps, so that all processing procedures corresponding to the workpiece 10 can be completed; each process is carried out simultaneously, so that the processing time of the workpiece 10 can be shortened, and the processing efficiency is improved; a single drilling clamp 13 can simultaneously clamp a pair of workpieces 10 and simultaneously carry out machining detection, and the drilling clamp 13 and the relative positions of the mechanisms corresponding to the steps are fixed, so that the machining precision of each procedure is ensured, and the cost and the loss are reduced; install work piece 10 to chamfer anchor clamps 3 through arm 2 to carry out chamfer processing back to pinhole 1021, bottom mounting hole 1011 in proper order, through photoelectric switch automatic judgement work piece 10 about and through removing slip table 21 and processing the location, release the work piece 10 of accomplishing of processing from chamfer anchor clamps 3 through the action of liftout cylinder 32, realized the automation of chamfer processing and unloading.
Example 2
This example is modified from example 1 as follows: the feeding frame 14 is also provided with a mistake-proofing mechanism; the mistake proofing mechanism comprises a pressing cylinder which is vertically arranged; the output end of the pressing cylinder is fixedly connected with a pressing block and a checking mechanism; the inspection mechanism is electrically connected with the controller.
The inspection mechanism comprises a proximity switch fixedly arranged at the lower end of the pressing block; the lower end of the proximity switch corresponds to the position of the workpiece 10 after installation.
The compressing cylinder is connected with the booster air pump through a pipeline and is controlled by a pneumatic control system; the proximity switch is electrically connected with the controller.
Whether the workpiece 10 is installed wrongly or not can be found in time through the mistake-proofing mechanism, and timely adjustment can be carried out, so that waste caused by workpiece machining errors is avoided.
Example 3
This example is modified from example 1 as follows: the upper ends of the two fixing columns 331 are fixedly connected with a side baffle 3314 at the same side; one side of the vertical portion 102 abuts against the side fence 3314 when the workpiece 10 is mounted on the chamfering jig 33. The side guards 3314 assist in positioning the workpiece 10 when it is mounted on the chamfering jig 33.
Example 4
This example is modified from example 1 as follows: a blanking slope 3313 is formed on the outward side of the upper end of the fixing column 331; two blanking guide grooves are respectively and fixedly arranged at the two ends of the mounting frame 31, which are positioned at the stroke of the servo sliding table 32, and below the blanking slope 3313; the servo sliding table 32 is respectively close to the two blanking guide grooves when positioned at the two ends of the stroke, namely, the machined workpiece 10 falls into the blanking guide grooves from the blanking slope 3313 when pushed out from the chamfering fixture 33 by the material ejecting cylinder 332, so that the left and right workpieces 10 can be conveniently classified.
In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.
Claims (8)
1. The utility model provides a door spare drilling and chamfer processing line which characterized in that: comprises a special drilling machine (1), a mechanical arm (2) and a special chamfering machine (3); the special drilling machine (1) comprises a machine body (11), wherein a hydraulic rotary table (12) which is horizontally arranged is arranged on the machine body (11), and six drilling clamps (13) are arranged on the hydraulic rotary table (12) at equal angles; six drilling fixtures (13) correspond to six stations; a feeding rack (14), a drilling pin shaft hole mechanism (15), a first detection mechanism (16), a reaming mechanism (17), a vertical drilling mechanism (18) and a second detection mechanism (19) are sequentially arranged on the lathe bed (11) corresponding to each station; the hydraulic rotary table (12) rotates 60 degrees each time; the mechanical arm (2) is positioned on one side of the station corresponding to the second detection mechanism (19);
the special chamfering machine (3) comprises a mounting frame (31) and a fixture servo sliding table (32) fixedly mounted on the mounting frame (31), wherein the servo sliding table (32) comprises a sliding table (321) and a servo motor used for controlling the sliding table to move; a chamfering clamp (33) is fixedly arranged on the sliding table (321); the vertical part (102) faces downwards when the workpiece (10) is installed on the chamfering clamp (33); the sliding table (321) is also provided with a material ejecting cylinder (332) used for unloading the workpiece (10) from the chamfering clamp (33);
the mounting rack (31) is also provided with a vertical chamfering mechanism (35) for processing the chamfer of the bottom mounting hole (1011) and two horizontal chamfering mechanisms (34) for processing the chamfer of the pin shaft hole (1021); the two horizontal chamfering mechanisms (34) are oppositely arranged; a cutter of the horizontal chamfering mechanism (34) is positioned at the height corresponding to a rear pin shaft hole (1021) of a workpiece (10) arranged on the chamfering clamp (33); the cutter of the vertical chamfering mechanism (35) corresponds to a bottom mounting hole (1011) after the workpiece (10) is mounted on the chamfering clamp (33); the workpiece (10) drives the chamfering clamp (33) to move by moving the sliding table (321) so as to adjust the machining position;
the device also comprises a booster air pump, a hydraulic station and a control electronic box; a controller, a hydraulic control system electrically connected with the controller and a pneumatic control system electrically connected with the controller are arranged in the control electric box; the hydraulic turntable (12) is connected with the hydraulic station and is controlled by a hydraulic control system; the material ejecting cylinder (332) is connected with the booster air pump through a pipeline and is controlled by a pneumatic control system; the drilling and pin shaft hole mechanism (15), the first detection mechanism (16), the reaming mechanism (17), the vertical drilling mechanism (18), the second detection mechanism (19), the servo sliding table (32), the vertical chamfering mechanism (35) and the two horizontal chamfering mechanisms (34) are electrically connected with the controller;
the drilling clamp (13) is simultaneously provided with a left workpiece (10) and a right workpiece (10) and comprises a bottom plate (131) fixedly arranged on the hydraulic turntable (12); two positioning installation seats (136) for installing the workpiece (10) are symmetrically arranged at the upper end of the bottom plate (131); two first oil cylinders (132) which are symmetrically arranged are fixedly arranged between the two positioning installation seats (136); two sides of the two positioning installation seats (136) are respectively provided with a second oil cylinder (133); the first oil cylinder (132) is vertically arranged, and the second oil cylinder (133) is horizontally arranged; the first oil cylinder (132) and the second oil cylinder (133) are both rotary oil cylinders; the output end of the first oil cylinder (132) is fixedly connected with an upper pressure plate (135) used for fixing the mounting part (101); the positioning mounting seat (136) further comprises a side positioning block (1361) which is vertically arranged; a side pressure plate (134) used for limiting the side surface of the vertical part (102) is fixedly connected to the output end of the second oil cylinder (133), and the installation position of the vertical part (102) is limited through a side surface positioning block (1361) and the side pressure plate (134); a bottom positioning block (137) for positioning the mounting part (101) is fixedly connected to the positioning mounting seat (136);
each first cylinder (132), each second cylinder (133) is connected to the hydraulic station and controlled by the hydraulic control system.
2. The door member drilling and chamfering processing line according to claim 1, wherein: the chamfering clamp (33) comprises two vertically arranged fixing columns (331); the two fixed columns (331) are mirror images of each other; a clamping groove (3311) for limiting the position of the workpiece (10) is formed at the upper end of the fixing column (331); a positioning pin (3312) is formed on the clamping groove (3311) corresponding to the bottom mounting hole (1011); the length of the positioning pin (3312) is half of the thickness of the mounting part (101); the gap between the workpiece (10) and the upper end part of one fixed column (331) is 2-4cm after the workpiece is installed on the other fixed column (331); the material ejecting cylinder (332) is positioned between the two fixing columns (331).
3. The door member drilling and chamfering processing line according to claim 1, wherein: the end part of the mechanical arm (2) is provided with a pneumatic clamping jaw (21) connected with a pressurization air pump through a pipeline, and the pneumatic clamping jaw (21) is controlled by a pneumatic control system; the pneumatic clamping jaw (21) comprises a clamping jaw (211) used for clamping the workpiece (10); the middle of the pneumatic clamping jaw (21) is fixedly connected with a middle positioning pin (212), and the middle positioning pin (212) is inserted into the pin shaft hole (1021) when the pneumatic clamping jaw (21) clamps the workpiece (10); the end part of the clamping jaw (211) is fixedly connected with a clamping jaw block (2111) corresponding to the workpiece (10).
4. The door member drilling and chamfering processing line according to claim 1, wherein: the feeding rack (14) is also provided with a mistake-proofing mechanism; the mistake proofing mechanism comprises a pressing cylinder which is vertically arranged; the output end of the pressing cylinder is fixedly connected with a pressing block and a checking mechanism; the inspection mechanism is electrically connected with the controller;
the inspection mechanism comprises a proximity switch fixedly arranged at the lower end of the pressing block; the lower end of the proximity switch corresponds to the corresponding position of the workpiece (10) after installation; the proximity switch is electrically connected with the controller;
the device also comprises a pressing cylinder controlled by a pneumatic control system; the compressing cylinder is connected with the booster pump through a pipeline.
5. The door member drilling and chamfering processing line according to claim 1, wherein: the drilling and pinning shaft hole mechanism (15) comprises a servo mechanical sliding table; a first motor is arranged on the servo mechanical sliding table; an output shaft of the first motor is fixedly connected with a boring and milling power head, and a cutter for processing a pin shaft hole (1021) is mounted on the boring and milling power head; the vertical drilling mechanism (18) comprises an upright column, a servo mechanical sliding table, a first motor and a boring and milling power head, wherein the servo mechanical sliding table is the same as the drilling pin shaft hole mechanism (15), and a cutter for machining a bottom mounting hole (1011) is mounted on the boring and milling power head; the horizontal chamfering mechanism (34) and the pin shaft hole drilling mechanism (15) and the vertical chamfering mechanism (35) and the vertical drilling mechanism (18) have the same structure, and a cutter for processing the chamfer of the pin shaft hole (1021) or the bottom mounting hole (1011) is arranged on the corresponding boring and milling power head; a second motor for moving the sliding table is arranged in the servo mechanical sliding table; the first motor is a three-phase asynchronous motor; the second motor is a servo motor; the reaming mechanism (17) comprises a pneumatic feeding power head, and a reamer is mounted on the pneumatic feeding power head;
the pneumatic feeding power head is connected with the booster air pump through a pipeline and is controlled through a pneumatic control system.
6. The door member drilling and chamfering processing line according to claim 1, wherein: the first detection mechanism (16) comprises a bracket, a probe and a first air cylinder for driving the probe to move; a probe of the first detection mechanism (16) is positioned outside the drilling clamp (13) and faces the pin shaft hole (1021); the second detection mechanism (19) has the same structure as the first detection mechanism (16) and the probe vertically faces to the bottom mounting hole (1011);
the pneumatic control system also comprises a first air cylinder and a second air cylinder which are controlled by the pneumatic control system; the first air cylinder and the second air cylinder are connected with the booster air pump through pipelines; the probe is electrically connected with the controller.
7. The door member drilling and chamfering processing line according to claim 1, wherein: a bottom positioning block (137) is positioned at one side of the middle part and is formed with a vertical stop block (1371) which defines one end position of the installation part (101); the upper end of the vertical stop block (1371) is formed with a transverse hook part (1372) used for limiting the upper end surface of the mounting part (101).
8. The door member drilling and chamfering processing line according to claim 2, wherein: two photoelectric switches electrically connected with the controller are arranged on the chamfering clamp (33); the two photoelectric switches are used for judging the left and right parts of the workpiece (10); the two photoelectric switches are respectively positioned: the left workpiece (10) and the right workpiece (10) are respectively arranged at the gap between the corresponding fixed column (331) and the other fixed column (331).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910137953.5A CN109746682B (en) | 2019-02-25 | 2019-02-25 | Drilling and chamfering processing line for vehicle door part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910137953.5A CN109746682B (en) | 2019-02-25 | 2019-02-25 | Drilling and chamfering processing line for vehicle door part |
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| CN109746682B true CN109746682B (en) | 2020-09-22 |
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| CN110774001A (en) * | 2019-11-27 | 2020-02-11 | 湖北大冶汉龙汽车有限公司 | Chamfering machine for compressor cylinder block and using method thereof |
| CN112171609A (en) * | 2020-08-19 | 2021-01-05 | 天津三合智能装备制造有限公司 | Workpiece circumferential positioning rotary table |
| CN113172251A (en) * | 2021-04-02 | 2021-07-27 | 扬州洪维汽车零部件有限公司 | Profile steel vehicle door hinge chamfering machine |
| CN114749327B (en) * | 2022-02-28 | 2023-10-27 | 苏州海泰汽车科技有限公司 | Multi-station automobile plastic water falling groove assembling, dispensing and curing equipment and working method |
| CN115213634B (en) * | 2022-06-23 | 2023-12-19 | 长恩精机(长兴)有限公司 | Automobile part machining process |
| CN115213689A (en) * | 2022-06-23 | 2022-10-21 | 长恩精机(长兴)有限公司 | Automobile part machining production line |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101518375B1 (en) * | 2013-09-06 | 2015-05-07 | (주)태현 | Apparatus for manufacturing yoke of universial joint and method therefor |
| CN104723146A (en) * | 2013-12-24 | 2015-06-24 | 上海国上机电科技有限公司 | Automobile wear ring hole machining and positioning device |
| CN105750915B (en) * | 2016-04-28 | 2018-04-17 | 奉化市欧特瑞智能科技有限公司 | One kind automation multiple operation synchronous processing combined numerically controlled machine |
| CN106736244A (en) * | 2016-12-14 | 2017-05-31 | 昆山钰立电子科技股份有限公司 | Car door shaped steel hinge manufacturing process |
| CN108247392B (en) * | 2018-02-05 | 2023-10-27 | 浙江双正机床有限公司 | Car door hinge clamp |
| CN108436465A (en) * | 2018-04-03 | 2018-08-24 | 涿州市盛弘机械有限责任公司 | A kind of car door lower hinge movable part processing integrated machine |
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