Cylinder head camshaft oilhole chamfering device
Technical Field
The invention relates to the technical field of manufacturing of cylinder heads of automobile engines, in particular to a cylinder head camshaft oil hole chamfering device.
Background
At present, burrs often exist after the camshaft oil hole is machined, and when the burrs are serious, the burrs fall into a camshaft hole to cause the camshaft hole to be strained and cause abnormal noise of an engine; in order to remove the burr, the camshaft oil hole needs to be chamfered.
Patent application publication No. CN 103586704A's patent discloses a cylinder head camshaft oilhole chamfer device, including the support that is equipped with two top side plates, be equipped with convex spout and both ends respectively with a horizontal beam that the top side plate is connected, be equipped with the chamfer mechanism and the corner stop gear of the slider that match with convex spout. When the cylinder head camshaft oil hole chamfering device is used, a cylinder head is placed in a support, a chamfering mechanism is pulled and limited by a corner limiting mechanism, and the chamfering mechanism chamfers a camshaft oil hole of the cylinder head; the chamfering mechanism is pulled and limited by the corner limiting mechanism, and the chamfering mechanism chamfers the camshaft oil hole of the other cylinder cover. The cylinder head camshaft oil hole chamfering device realizes chamfering operation by one-time clamping, and has good chamfering quality and high chamfering efficiency.
However, in the technical scheme, when the device is actually used, more defects still exist, for example, the whole device needs semi-manual operation, the machining efficiency is low, the adjustment precision of the pneumatic drill bit is not high, and wrong chamfers are easily generated during machining, so that the cylinder cover is scrapped.
Disclosure of Invention
In order to overcome the defects in the prior art, the embodiment of the invention provides the cylinder head camshaft oil hole chamfering device, through the arrangement of the calibration template, before the chamfering of the pneumatic drill head, the pneumatic drill head needs to penetrate through the reserved calibration groove on the calibration template, the pneumatic drill head collides with the reserved groove in the process of penetrating through the reserved groove, the chamfering failure is avoided, the cylinder head is damaged and scrapped, and the infrared distance measuring sensor is matched for use, so that whether the angle of the pneumatic drill head deviates or not can be detected, the working of the first screw rod, the second screw rod and the electric cylinder is intelligently controlled through the PLC, the angle of the pneumatic drill head is controlled, and the chamfering precision of the pneumatic drill head is high.
In order to achieve the purpose, the invention provides the following technical scheme: a cylinder cover camshaft oil hole chamfering device comprises a feeding table, wherein a feeding chute is arranged on the feeding table, a calibrating template is arranged at the top of the feeding chute, telescopic pressing plate assemblies are arranged on two sides of the top of the calibrating template, a chamfering mechanism is arranged above the calibrating module, an angle adjusting mechanism is arranged at the top of the chamfering mechanism, a first sliding block is fixedly arranged on two sides of the top of the angle adjusting mechanism, and a first lead screw is sleeved in the sliding block;
the calibration template comprises a substrate, reserved calibration grooves are formed in two sides of the substrate, a screen plate is fixedly arranged on the inner wall of each reserved calibration groove, an infrared distance measuring sensor is arranged on the outer side of each screen plate, and a dust exhaust three-way pipe is arranged on the inner side of each screen plate;
the chamfering mechanism comprises a chamfering head, the top end of the chamfering head is connected with a servo motor through a rotating shaft, an electric cylinder is fixedly arranged at the top end of the servo motor, a first reserved groove is formed in the surface of the bottom of the chamfering head, an air drill bit is movably arranged in the first reserved groove, and the top end of the air drill bit extends to the inside of the chamfering head and is connected with a first adjusting assembly;
the angle adjusting mechanism comprises a box body, an adjusting assembly II is arranged in the box body, a reserved groove II is formed in the surface of the bottom of the box body, and the top end of the electric cylinder penetrates through the reserved groove II and is fixedly connected with the adjusting assembly II.
In a preferred embodiment, spring limiting plates are arranged on two sides of the feeding chute, and each spring limiting plate comprises a top plate, a spring group and a bottom plate which are arranged in sequence from top to bottom.
In a preferred embodiment, the telescopic pressing plate assembly comprises electric telescopic rods embedded in two sides of the top of the feeding table, the top ends of the electric telescopic rods are fixedly connected with the calibration template through L-shaped supports, and the bottom end face of the calibration template is matched with the top end face of the cylinder cover.
In a preferred embodiment, the inner side wall of the reserved calibration groove is set to be a curved surface, the diameters of the top end and the bottom end of the reserved calibration groove are both larger than the aperture of the oil hole of the cylinder head camshaft and the diameter of the air drill bit, and the top end of the dust exhaust tee pipe is connected with a cloth bag filter and an air suction pump in sequence.
In a preferred embodiment, the first adjusting assembly comprises a first rotating plate, a second screw rod and a first extension plate, the cross section of the first rotating plate is arranged in an inverted V shape, and the bottom end of the first rotating plate is fixedly connected with the pneumatic drill bit; the second adjusting assembly comprises a second rotating plate, a third screw rod and a second extension plate, the section of the second rotating plate is in an inverted V shape, and the bottom end of the second rotating plate of the second adjusting assembly is fixedly connected with the electric cylinder.
In a preferred embodiment, the second screw rod is arranged at two sides of the first rotating plate, the second screw rod is sleeved with the second slider, the inner side wall of the second slider is fixedly connected with the first extension plate, the first extension plate at one side of the first rotating plate is arranged above the first rotating plate, and the first extension plate 15 at the other side of the first rotating plate is arranged below the rotating plate; the screw rod III is arranged on two sides of the rotating plate II, a slider III is sleeved outside the screw rod III, the inner side wall of the slider III is fixedly connected with the extension plate II, the extension plate II on one side of the rotating plate II is arranged above the rotating plate II, and the extension plate I on the other side of the rotating plate II is arranged below the rotating plate II.
In a preferred embodiment, a shaft rod is movably sleeved in the first rotating plate, the shaft rod on the first adjusting assembly is fixedly connected with the chamfering head, the rear sides of the two ends of the first rotating plate are fixedly connected with first sliding feet, a first sliding rail is arranged on the inner wall of the rear side of the chamfering head corresponding to the rear side of the first rotating plate, the first sliding rail is arranged in a three-quarter ring shape, and the first sliding foot on the rear side of each first rotating plate is arranged in the first sliding rail and is in sliding connection with the first sliding rail; the inner part of the second rotating plate is movably sleeved with a shaft rod, the shaft rod on the second adjusting assembly is fixedly connected with the box body 61, the rear sides of the two ends of the second rotating plate are fixedly connected with second sliding feet, the inner wall of the rear side of the box body, corresponding to the rear side of the second rotating plate, is provided with a second sliding rail, the second sliding rail is in a three-quarter ring shape, and the second sliding foot on the rear side of each second rotating plate is arranged in the second sliding rail and is in sliding connection with the second sliding.
In a preferred embodiment, a PLC controller is arranged on one side of the feeding table, the infrared distance measuring sensor is connected with the PLC controller through an A/D converter, and the PLC controller is in transmission connection with the first screw rod, the second screw rod, the third screw rod and the electric cylinder through D/A converters.
The invention has the technical effects and advantages that:
1. according to the invention, by utilizing the arrangement of the calibration template, before the pneumatic drill head is chamfered, the pneumatic drill head needs to penetrate through a reserved calibration groove on the calibration template, the pneumatic drill head collides with the reserved groove in the process of penetrating through the reserved groove, the chamfering failure is avoided, the cylinder cover is damaged and scrapped, and the infrared distance measuring sensor is matched for use, so that whether the angle of the pneumatic drill head deviates or not can be detected, the PLC controller is used for intelligently controlling the working of the first screw rod, the second screw rod, the third screw rod and the electric cylinder, the angle of the pneumatic drill head is controlled, the chamfering precision of the pneumatic drill head is high, and in the chamfering process, the air suction pump works, dust generated by chamfering is extracted into the cloth bag filter through the dust discharge three-way pipe, clean air is directly discharged, and the dust left in the cylinder cover is avoided;
2. the cylinder cover is inserted through the front end of the feeding chute, the electric telescopic rod drives the calibration template to press downwards to fix the cylinder cover, the PLC controls the intelligent operation of the whole device, the first screw rod works, the angle adjusting mechanism and the chamfering mechanism are driven to move left and right through the slider, then the second adjusting assembly works, the chamfering mechanism is adjusted to be the same as the oil hole in the inclined direction, then the first adjusting assembly works, the air drill bit corresponds to the oil hole, the chamfering angle of the air drill bit in rotating movement is formed, the electric cylinder drives the air drill bit to move downwards, and the servo motor drives the air drill bit to rotate and chamfer.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of the overall structure of the chamfering mechanism of the present invention during the inclination processing.
FIG. 3 is a schematic structural diagram of a chamfering mechanism according to the present invention.
Fig. 4 is a schematic structural diagram of the angle adjusting mechanism of the present invention.
Fig. 5 is a schematic view of the rotating plate structure of the present invention.
Fig. 6 is a schematic view of the structure of the feed chute of the present invention.
FIG. 7 is a schematic diagram of a calibration template according to the present invention.
Fig. 8 is a working principle diagram of the present invention.
The reference signs are: the device comprises a feeding table 1, a feeding chute 2, a calibration template 3, a base plate 31, a reserved calibration groove 32, an infrared distance measuring sensor 33, a dust exhaust three-way pipe 34, a telescopic pressing plate assembly 4, an electric telescopic rod 41, a chamfering mechanism 5, a chamfering head 51, a servo motor 52, an electric cylinder 53, an air drill bit 54, an adjusting assembly I55, an angle adjusting mechanism 6, a box body 61, an adjusting assembly II 62, a slider I7, a screw rod I8, a spring limiting plate 9, a cylinder cover 10, a cloth bag filter 11, an air suction pump 12, a rotating plate 13, a screw rod II 14, an extension plate 15, a slider II 16, a slider II 17, a sliding foot 18, a rotating plate II 19, a screw rod III 20, an extension plate II 21, a slider III 22, a sliding foot II 23 and a sliding.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The cylinder head camshaft oil hole chamfering device comprises a feeding table 1, wherein a feeding chute 2 is arranged on the feeding table 1, a calibration template 3 is arranged at the top of the feeding chute 2, telescopic pressure plate assemblies 4 are arranged on two sides of the top of the calibration template 3, a chamfering mechanism 5 is arranged above the calibration module, an angle adjusting mechanism 6 is arranged at the top of the chamfering mechanism 5, first sliding blocks 7 are fixedly arranged on two sides of the top of the angle adjusting mechanism 6, and first lead screws 8 are sleeved in the sliding blocks;
spring limiting plates 9 are arranged on two sides of the feeding chute 2, and each spring limiting plate 9 comprises a top plate, a spring group and a bottom plate which are sequentially arranged from top to bottom;
the telescopic pressing plate assembly 4 comprises electric telescopic rods 41, the electric telescopic rods 41 are embedded in two sides of the top of the feeding table 1, the top ends of the electric telescopic rods 41 are fixedly connected with the calibration template 3 through L-shaped supports, and the bottom end face of the calibration template 3 is matched with the top end face of the cylinder cover 10;
the implementation mode is specifically as follows: insert cylinder head 10 through 2 front ends of feeding spout, the spring limiting plate 9 of both sides is spacing with cylinder head 10 both ends, then electric telescopic handle 41 drives calibration template 3 and pushes down and laminate with cylinder head 10 to fixed cylinder head 10, the cylinder head 10 later stage processing of being convenient for, cylinder head 10 fixes the back, and lead screw 8 is driven by the motor, and lead screw 8 work drives angle adjustment mechanism 6 and control through slider 7 and removes about chamfering mechanism 5, realizes the processing of two oilholes.
According to the cylinder head camshaft oil hole chamfering device shown in fig. 1-5, the chamfering mechanism 5 comprises a chamfering head 51, the top end of the chamfering head 51 is connected with a servo motor 52 through a rotating shaft, an electric cylinder 53 is fixedly arranged at the top end of the servo motor 52, a first reserved groove is formed in the bottom surface of the chamfering head 51, an air drill bit 54 is movably arranged in the first reserved groove, and the top end of the air drill bit 54 extends to the inside of the chamfering head 51 and is connected with a first adjusting assembly 55;
the angle adjusting mechanism 6 comprises a box body 61, a second adjusting assembly 62 is arranged in the box body 61, a second reserved groove is formed in the bottom surface of the box body 61, and the top end of the electric cylinder 53 penetrates through the second reserved groove and is fixedly connected with the second adjusting assembly 62;
the first adjusting assembly 55 comprises a first rotating plate 13, a second screw rod 14 and a first extension plate 15, the cross section of the first rotating plate 13 is in an inverted V shape, and the bottom end of the first rotating plate 13 is fixedly connected with an air drill 54; the second adjusting assembly 62 comprises a second rotating plate 19, a third screw rod 20 and a second extension plate 21, the section of the second rotating plate 19 is in an inverted V shape, and the bottom end of the second rotating plate 19 of the second adjusting assembly 62 is fixedly connected with the electric cylinder 53;
the second screw rod 14 is arranged on two sides of the first rotating plate 13, a second sliding block 16 is sleeved outside the second screw rod 14, the inner side wall of the second sliding block 16 is fixedly connected with a first extension plate 15, the first extension plate 15 on one side of the first rotating plate 13 is arranged above the first rotating plate 13, and the first extension plate 15 on the other side of the first rotating plate 13 is arranged below the first rotating plate 13;
the third screw rod 20 is arranged on two sides of the second rotating plate 19, a third slider 22 is sleeved outside the third screw rod 20, the inner side wall of the third slider 22 is fixedly connected with a second extension plate 21, the second extension plate 21 on one side of the second rotating plate 19 is arranged above the second rotating plate 19, and the first extension plate 21 on the other side of the second rotating plate 19 is arranged below the second rotating plate 19;
the shaft rod is movably sleeved in the first rotating plate 13, the shaft rod on the first adjusting assembly 55 is fixedly connected with the chamfering head 51, the rear sides of the two ends of the first rotating plate 13 are fixedly connected with first sliding feet 17, a first sliding rail 18 is arranged on the inner wall of the rear side of the chamfering head 51 corresponding to the rear side of the first rotating plate 13, the first sliding rail 18 is in a three-quarter ring shape, and the first sliding foot 17 on the rear side of each first rotating plate 13 is arranged in the first sliding rail 18 and is in sliding connection with the first sliding rail 18;
a shaft rod is movably sleeved in the second rotating plate 19, the shaft rod on the second adjusting assembly 62 is fixedly connected with the box body 61, two sliding feet 23 are fixedly connected to the rear sides of the two ends of the second rotating plate 19, two sliding rails 24 are arranged on the inner wall of the rear side of the box body 61 corresponding to the rear side of the second rotating plate 19, the two sliding rails 24 are arranged in a three-quarter ring shape, and the two sliding feet 23 on the rear side of each second rotating plate 19 are arranged in the two sliding rails 24 and are in sliding connection with the two sliding rails 24;
the implementation mode is specifically as follows: when the angle of the electric cylinder 53 is adjusted, the third screw rod 20 on the second adjusting assembly 62 works, the third screw rod 20 is driven by a motor, the third slide blocks 22 on two sides of the second rotating plate 19 drive the second rotating plate 19 to rotate through the extension plate 21, the second rotating plate 19 is positioned through the shaft rod and the second sliding foot 23, and the second sliding foot 23 is limited in the second sliding rail 24, so that the second rotating plate 19 rotates stably, the angle adjustment that the electric cylinder 53 drives the chamfering mechanism 5 is realized, the chamfering mechanism 5 is consistent with the inclination angle of the oil hole, the angle adjustment of the air drill bit 54 can be realized in the same way, the air drill bit 54 corresponds to the oil hole, and the chamfering angle of the air drill bit 54 can.
According to the cylinder head camshaft oil hole chamfering device shown in fig. 7, the calibration template 3 comprises a base plate 31, reserved calibration grooves 32 are formed in two sides of the base plate 31, a screen plate is fixedly arranged on the inner wall of each reserved calibration groove 32, an infrared distance measuring sensor 33 is arranged on the outer side of each screen plate, a dust exhaust three-way pipe 34 is arranged on the inner side of each screen plate, and the top end of each dust exhaust three-way pipe 34 is connected with a cloth bag filter 11 and an air suction pump 12 in sequence;
the inner side wall of the reserved calibration groove 32 is set to be a curved surface, and the diameters of the top end and the bottom end of the reserved calibration groove 32 are both larger than the aperture of an oil hole of a camshaft of a cylinder cover and the diameter of an air drill bit 54;
according to the cylinder head camshaft oil hole chamfering device shown in fig. 8, a PLC (programmable logic controller) is arranged on one side of a feeding table 1, an infrared distance measuring sensor 33 is connected with the PLC through an A/D (analog/digital) converter, the PLC is in transmission connection with a first lead screw 8, a second lead screw 14, a third lead screw 20 and an electric cylinder 53 through a D/A converter, and the type of the infrared distance measuring sensor 33 is GP2Y0A02YK0F 20-1;
the implementation mode is specifically as follows: through the arrangement of the reserved calibration groove 32, when the pneumatic drill bit 54 moves downwards for chamfering, if the pneumatic drill bit 54 deviates in angle, the pneumatic drill bit 54 collides with the reserved groove in the process of penetrating through the reserved groove, whether the pneumatic drill bit 54 deviates can be detected, and in the downward movement process of the pneumatic drill bit 54, the infrared distance measuring sensor 33 can detect whether the angle of the pneumatic drill bit 54 is accurate, and when the pneumatic drill bit 54 rotates for chamfering, whether the annular rotation of the pneumatic drill bit 54 deviates can be detected, so that the first screw rod 8, the second screw rod 14, the third screw rod 20 and the electric cylinder 53 are intelligently controlled to work through the PLC, the angle of the pneumatic drill bit 54 is controlled, and the chamfering precision of the pneumatic drill bit 54 is high;
in the chamfering process, the air suction pump 12 works to suck dust generated by chamfering into the cloth bag filter 11 through the dust exhaust three-way pipe 34, clean air is directly exhausted, and the situation that the dust is left in the cylinder cover 10 to influence the use of the cylinder cover 10 is avoided.
The working principle of the invention is as follows:
referring to the attached drawings 1-6 of the specification, when the device is used, a cylinder cover 10 is inserted through the front end of a feeding chute 2, an electric telescopic rod 41 drives a calibration template 3 to press downwards to fix the cylinder cover 10, a PLC controls the intelligent operation of the whole device, a screw rod I8 works, a slide block I7 drives an angle adjusting mechanism 6 and a chamfering mechanism 5 to move left and right, then an adjusting component II 62 works, the chamfering mechanism 5 is adjusted to be the same as the inclination direction of an oil hole, then an adjusting component I55 works, an air drill bit 54 corresponds to the oil hole, the air drill bit 54 rotates and moves at a chamfering angle, an electric cylinder 53 drives the air drill bit 54 to move downwards, and a servo motor 52 drives the air drill bit 54 to rotate and chamfer;
referring to the attached drawings 7-8 of the specification, before the air drill bit 54 is chamfered, the air drill bit 54 needs to penetrate through the reserved calibration groove 32 on the calibration template 3, the air drill bit 54 collides with the reserved groove in the process of penetrating through the reserved groove, chamfering failure is avoided, the cylinder cover 10 is damaged and scrapped, and the infrared distance measuring sensor 33 is matched for use, so that whether the angle of the air drill bit 54 deviates or not can be detected, the PLC is used for intelligently controlling the first lead screw 8, the second lead screw 14, the third lead screw 20 and the electric cylinder 53 to work, the angle of the air drill bit 54 is controlled, and the chamfering precision of the air drill bit 54 is high;
in addition, in the chamfering process, the air suction pump 12 works to suck and filter dust generated by chamfering, and the phenomenon that the dust is left in the cylinder cover 10 to influence the use of the cylinder cover 10 is avoided.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.