CN110640466A

CN110640466A - Cylinder head valve seat insert valve line grinds machine of patting

Info

Publication number: CN110640466A
Application number: CN201910951370.6A
Authority: CN
Inventors: 杨程日
Original assignee: Zhejiang Nuokan Machinery Technology Co Ltd
Current assignee: Zhejiang Nuokan Machinery Technology Co Ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-01-03
Anticipated expiration: 2039-10-08
Also published as: CN110640466B

Abstract

A cylinder head valve seat ring valve line grinding and patting machine comprises a lower fixing plate, an upper fixing plate, a support rod connected between the upper fixing plate and the lower fixing plate, a cylinder head positioning and moving device arranged on the lower fixing plate, a front rotary lifting device and a rear rotary lifting device arranged on the upper fixing plate, a mounting plate arranged on a support, an up-down moving cylinder arranged on the mounting plate, a gear box connected with the up-down moving cylinder, a motor arranged on a fixing frame arranged on the gear box, a driving gear and a synchronous gear arranged in the gear box, the synchronous gear connected with a rotating shaft, the lower end of the rotating shaft passing through the gear box, an outer sleeve arranged outside the lower end of the rotating shaft, a base arranged below the outer sleeve, an oblique lug arranged on the base, an oblique guide surface and a straight surface arranged on the oblique lug, a slot and a limit groove arranged at the lower end of the rotating shaft, a rotating rod arranged, the lower end of the rotating rod is provided with a sucker, and the lower end of the sucker is attracted with the valve stem.

Description

Cylinder head valve seat insert valve line grinds machine of patting

Technical Field

The invention relates to a grinding and beating machine for valve seat ring valve lines of a cylinder cover, belonging to the field of cylinder cover processing equipment.

Background

The valve seat insert and the valve rod in the cylinder cover of the engine are one of key parts influencing the reliability and the safety of the engine, and are mainly used for starting and closing an air inlet channel and an air outlet channel in the working process of the engine and controlling the inlet of fuel mixture or air and the exhaust of waste gas. The valve rod is matched with a valve line of the valve seat ring in the opening and closing process, so that the matching air tightness between the valve line of the valve seat ring and the valve is very important, and if burrs occur after the valve line of the valve seat ring is machined, the matching air tightness between the valve seat ring and the valve can be influenced. The valve seat ring of the prior art cylinder cover is not usually ground and flapped for two times after being processed, or the valve seat ring is ground by manually holding a single valve grinding machine, so that the processing efficiency is low, only grinding is carried out, and the processing effect on the smoothness of the valve seat ring is poor.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a grinding and beating machine for the valve line of the valve seat ring of the cylinder cover, which can automatically and repeatedly grind and beat the valve line position of the valve seat ring of the cylinder cover in a rotating way, so that the surface of the valve line of the valve seat ring has better finish and air tightness, the machining efficiency is high, and the labor intensity of workers is reduced.

The invention relates to a grinding and beating machine for valve seat ring valve lines of a cylinder cover, which adopts the technical scheme that: comprises a lower fixed plate and an upper fixed plate, a support rod is connected between the upper fixed plate and the lower fixed plate, a cylinder cover positioning and moving device is arranged on the lower fixed plate, a front rotary lifting device and a rear rotary lifting device are arranged on the upper fixed plate, the cylinder cover positioning and moving device comprises a front slide rail, a rear slide rail, a long-distance front-and-back moving cylinder and a short-distance front-and-back moving cylinder, the front slide rail, the rear slide rail, the long-distance front-and-back moving cylinder and the short-distance front-and-back moving cylinder are fixed with the lower fixed plate, the front slide rail and the rear slide rail are provided with a front slide block and a rear slide block, a piston rod of the long-distance front-and-back moving cylinder is connected with the front slide plate and, the left and right sliding plates are provided with a fixed block and a positioning pin, the fixed block and the positioning pin are provided with a cylinder cover, the lower end of the cylinder cover is provided with a positioning hole, the positioning hole is matched with the positioning pin, the cylinder cover is provided with a valve, the valve is provided with a seat ring, the rotary lifting device comprises a bracket, the bracket is fixed with the upper fixed plate, the bracket is provided with an inclined mounting plate, the inclination angle of the mounting plate is consistent with that of the seat ring, the mounting plate is provided with an up-down moving cylinder with a corresponding inclination angle, a piston rod of the up-down moving cylinder penetrates through the mounting plate to be connected with a gear box, the gear box is provided with a fixed frame, the fixed frame is provided with a motor, a driving gear and a synchronous gear are arranged in the gear, the overcoat is fixed mutually with the gearbox, set up the base under the overcoat, the system has oblique lug on the base, system has oblique guide face and straight face on the oblique lug, system has slot and spacing groove under the axis of rotation, set up the dwang in the slot, the outer wall system of dwang has spacer pin and sliding pin, the spacer pin cooperatees with the spacing groove, it sets up the spring to be located spacer pin upper portion at the dwang outer wall, one end of spring contacts with the spacer pin, another end of spring contacts with the slot of axis of rotation, the sliding pin of dwang cooperatees with the oblique guide face on the oblique lug, lower extreme at the dwang sets up the sucking disc, the sucking disc lower extreme attracts with the air valve.

The invention discloses a grinding and patting machine for valve lines of valve seat rings of cylinder covers, which comprises a left sliding plate, a right sliding plate, a cylinder cover, a connecting block, a front sliding plate, a rear sliding plate, a front sliding block, a rear sliding block, a left sliding plate, a right sliding plate, a left sliding cylinder, a right sliding cylinder, a fixed block and a cylinder cover, wherein when the grinding and patting machine works, a worker puts the cylinder cover on the fixed block of the left sliding plate and the right sliding plate, the positioning pins on the left sliding plate and the right sliding plate are matched with the positioning holes of the cylinder cover to position the cylinder cover, the fixed block fixes the cylinder cover, after the cylinder cover is put in place, the front sliding plate, the rear sliding plate, the, and a set of rotary lifting device is usually provided with 4 suckers, and each sucker cannot flap the adjacent valve seat ring because the distance between the suckers is slightly larger, when in processing, the

front row

1, 3, 5 and 7 position valve seat rings can be firstly flapped, then the

front row

2, 4, 6 and 8 position valve seat rings are flapped, then the

rear row

2, 4, 6 and 8 position valve seat rings are flapped, and finally the

rear row

1, 3, 5 and 7 position valve seat rings are flapped, the motor of the set of rotary lifting device works, the output shaft of the motor drives the driving gear to rotate, the driving gear drives the synchronous gear to rotate, the synchronous gear drives the rotating shaft to rotate, the rotating shaft is matched with the limit pin of the rotating rod through the limit groove to drive the rotating rod to rotate, the rotating rod drives the sucker to rotate, the sucker sucks the valve rod, and simultaneously the sliding pin on the rotating rod rotates along with, the outer sleeve and the base are kept still, the sliding pin is matched with the inclined convex block on the base, the sliding pin gradually slides upwards along the inclined guide surface on the inclined convex block, so that the rotating rod, the sucking disc and the valve rod are driven to rotate and simultaneously move upwards together, the spring is compressed, when the sliding pin rotates to the straight position of the inclined convex block, the spring downwards pushes the limiting pin under the action of restoring force, the limiting pin pushes the rotating rod, the sliding pin, the sucking disc and the valve rod downwards, the valve rod downwards beats on the valve seat ring of the cylinder cover while rotating, the valve rod is just in contact with the valve line of the valve seat ring, so that the repeated rotary grinding and the up-down beating are carried out on the position of the valve line, when a group of valve seat rings are processed (for example, the valve seat rings at the positions of the

front row

1, 3, 5 and 7 of the cylinder cover), the motor stops working, the sucking disc and, The fixed block and the cylinder cover move leftwards (the valve seat rings at the positions of the

front row

2, 4, 6 and 8 of the cylinder cover correspond to a sucker), then a rotary lifting device grinds and beats the valve seat rings of the second group, after the processing is finished, the front and rear sliding plates are pushed forwards by a short-distance front and rear moving cylinder, the front and rear sliding plates drive the cylinder cover to move forwards for a short distance (the valve seat rings at the positions of the

rear row

2, 4, 6 and 8 of the cylinder cover are moved to the position below the corresponding position of the other group of rotary lifting device), and are ground and beaten by the group of rotary lifting device, after the processing is finished, the left and right moving cylinder drives the cylinder cover to move rightwards (the valve seat rings at the

positions

1, 3, 5 and 7 of the cylinder cover correspond to the sucker), and are ground and beaten, finally, all the cylinder covers which are processed are conveyed to, and put into the next cylinder head to be processed, and repeat the above-mentioned actions. This scheme cylinder head valve seat circle valve line grinds patting machine, the workman only need be responsible for putting the piece and get the piece, and the cylinder head of putting just can be carried to the assigned position automatically, carries out the grinding repeatedly and patts to the valve line position of cylinder head valve seat circle, makes the smooth finish on its surface reach the requirement to guarantee the gas tightness of cylinder head, machining efficiency is high, and has reduced workman's intensity of labour.

According to the cylinder cover valve seat ring valve line grinding and patting machine, the lower fixing plate is provided with the front and rear limiting blocks, and the front and rear limiting blocks are matched with the front and rear sliding plates. The front and rear limiting blocks are arranged, so that the front and rear moving distances of the front and rear sliding plates are limited, and the accuracy of the moving distances is ensured. The front and rear sliding plates are provided with left and right limiting blocks which are matched with the left and right sliding plates. The left and right limiting blocks are arranged, so that the left and right moving distances of the left and right sliding plates are limited, and the accuracy of the moving distances is ensured. The gearbox is provided with a guide rod, a guide hole is formed in the mounting plate, a guide sleeve is arranged in the guide hole, and the guide rod is matched with the guide sleeve. The guide rod and the guide sleeve are arranged, and when the up-and-down moving cylinder drives the gear box to move up and down, the gear box is guided.

Drawings

FIG. 1 is a perspective view of a cylinder head valve seat insert valve wire lapping and patting machine;

FIG. 2 is a perspective view of a cylinder head positioning and moving device mounted on the lower fixing plate;

FIG. 3 is a schematic structural view of a cylinder head positioning and moving device arranged on a lower fixing plate;

fig. 4 is a perspective view of the rotary lifting device;

FIG. 5 is a schematic view of the structure of the rotary lifting device;

FIG. 6 is a schematic structural diagram of the state of the synchronous gear, the rotating shaft, the outer sleeve, the base, the rotating rod, the spring and the sucker;

FIG. 7 is a perspective view of the state of the synchronization gear, the rotation shaft, the base, the rotation shaft, the spring and the suction cup;

FIG. 8 is an exploded perspective view of the synchronizing gear, rotating shaft, housing, base, rotating lever, spring and suction cup;

FIG. 9 is a perspective view of the motor, the driving gear, the synchronizing gear, the rotating shaft, the outer sleeve, the base and the suction cup in a matched state;

FIG. 10 is a schematic top view of the cylinder head;

fig. 11 is a schematic structural view of the cylinder head.

Detailed Description

The invention relates to a cylinder head valve seat ring valve line grinding and patting machine, as shown in figures 1-11, comprising a lower fixed plate 1 and an upper fixed plate 2, a support rod 3 is connected between the upper fixed plate and the lower fixed plate, a cylinder head positioning and moving device 101 is arranged on the lower fixed plate, a front group and a rear group of rotary lifting devices 102 are arranged on the upper fixed plate, the cylinder head positioning and moving device 101 comprises a front sliding rail 4, a rear sliding rail 4, a long-distance front-and-rear moving cylinder 5 and a short-distance front-and-rear moving cylinder 6, the front sliding rail, the long-distance front-and-rear moving cylinder and the short-distance front-and-rear moving cylinder are fixed with the lower fixed plate, a front sliding block 7 and a rear sliding block 7 are arranged on the front sliding rail and the rear sliding block 8, a piston rod of the long, the left and right slide rails are provided with left and right slide blocks 12, the left and right slide blocks are provided with left and right slide plates 13, piston rods of the left and right moving cylinders are connected with the left and right slide plates, the left and right slide plates are provided with fixed blocks 14 and positioning pins 15, the fixed blocks and the positioning pins are provided with cylinder covers 16, the lower ends of the cylinder covers are provided with positioning holes which are matched with the positioning pins, the cylinder covers are provided with air valves 17, seat rings are arranged in the air valves, the rotary lifting device 102 comprises a bracket 21 which is fixed with an upper fixed plate, the bracket is provided with an inclined mounting plate 22, the inclination angle of the mounting plate is consistent with that of the seat ring 18, the mounting plate is provided with an up-down moving cylinder 23 with a corresponding inclination angle, the piston rod of the up-down moving cylinder passes, the output shaft of the motor is connected with a driving gear which is meshed with a synchronous gear which is connected with a rotating shaft 29, the lower end of the rotating shaft passes through a gear box 24, the outer part of the lower end of the rotating shaft is provided with an outer sleeve 30 which is fixed with the gear box, a base 31 is arranged below the outer sleeve, an inclined convex block 32 is arranged on the base, an inclined guide surface 33 and a straight surface 34 are arranged on the inclined convex block, a slot 35 and a limit groove 36 are arranged at the lower end of the rotating shaft 29, a rotating rod 37 is arranged in the slot, a limit pin 38 and a sliding pin 39 are arranged on the outer wall of the rotating rod, the limit pin is matched with the limit groove, the spring 40 is arranged on the upper part of the limit pin on the outer wall of the rotating rod, one end of the spring is contacted with the limit pin, the other end of the spring is contacted with the slot 35 of the rotating shaft 29, the sliding pin 39 of the rotating rod 37 is matched with the inclined guide surface 33 on the inclined convex block 32, the lower end of the rotating rod is provided with the sucking disc 41, and the lower end of the sucking disc is sucked with the valve rod. When the device works, a worker firstly puts a cylinder cover 16 on a fixed block 14 of a left-right sliding plate 13, a positioning pin 15 on the left-right sliding plate is matched with a positioning hole of the cylinder cover 16 to position the cylinder cover, the cylinder cover 16 is fixed by the fixed block 14, after the device is put in place, a long-distance back-and-forth moving cylinder 5 drives a front-back sliding plate 8 and a front-back sliding block 7 to move backwards along a front-back sliding rail 4 through a connecting block 9, the front-back sliding plate 8 drives a left-right sliding rail 10, a left-right sliding block 12, the left-right sliding plate 13, a left-right moving cylinder 11, the fixed block 14 and the cylinder cover 16 to move backwards to the lower part of a rotary lifting device 102, at the moment, one of the left-right two groups of rotary lifting devices carries out grinding and flapping on a valve line of a cylinder cover valve seat ring (because the valves on the cylinder cover 16 are arranged, each sucker cannot flap the adjacent valve retainer because the distance between the suckers is slightly larger, when in processing, the sucker can flap the

front row

1, 3, 5 and 7 position valve retainer 103, then flap the

front row

2, 4, 6 and 8 position valve retainer 104, then flap the

back row

2, 4, 6 and 8 position valve retainer 105, and finally flap the

back row

1, 3, 5 and 7 position valve retainer 106. the motor 26 of the rotary lifting device 102 works, the output shaft of the motor drives the driving gear 27 to rotate, the driving gear drives the synchronizing gear 28 to rotate, the synchronizing gear drives the rotating shaft 29 to rotate, the rotating shaft is matched with the limit pin 38 of the rotating shaft 37 through the limit groove 36 to drive the rotating shaft to rotate, the rotating shaft 37 drives the sucker 41 to rotate, the sucker sucks the valve rod, meanwhile, the sliding pin 39 on the rotating shaft 37 rotates along with the rotating shaft, and the outer sleeve 30 and the base 31 keep still, the sliding pin 39 is matched with the inclined convex block 32 on the base 31, the sliding pin 39 gradually slides upwards along the inclined guide surface 33 on the inclined convex block 32, so as to drive the rotating rod 37, the sucking disc 41 and the valve rod to rotate and simultaneously move upwards, and the spring 40 is compressed, when the sliding pin 39 rotates to the straight surface 34 position of the inclined convex block 32, the spring 40 downwards pushes the limiting pin 38 under the restoring force, the limiting pin pushes the rotating rod 37, the sliding pin 39, the sucking disc 41 and the valve rod downwards, so that the valve rod downwards beats on the valve seat of the cylinder cover 16 while rotating, the valve rod just contacts with the valve line of the valve seat, so as to repeatedly rotate, grind and beat up and down the valve line position, when a group of valve seat (such as the valve seat 103 at the positions of the

front row

1, 3, 5 and 7 of the cylinder cover) is processed, the motor 26 stops working, the sucking disc 41 and other structures are reset, the left and right sliding plates 13, the fixed blocks 14 and the cylinder cover 16 are pushed by the left and right moving cylinder 11 to move left (the valve seat rings 104 at the positions of the

front rows

2, 4, 6 and 8 of the cylinder cover correspond to suckers), then the rotary lifting device 102 grinds and beats the valve seat rings of the second group, after the processing is finished, the front and back sliding plates 8 are pushed forward by the short-distance front and back moving cylinder 6, the front and back sliding plates drive the cylinder cover 16 to move forward a small distance (the valve seat rings 105 at the positions of the

rear rows

2, 4, 6 and 8 of the cylinder cover move to the position below the corresponding position of the other group of rotary lifting device), the rotary lifting device 192 grinds and beats the valve seat rings, after the processing is finished, the cylinder cover 16 is driven by the left and right moving cylinder 11 to move right (the valve seat rings 106 at the positions of the

rear rows

1, 3, 5, finally, all the finished cylinder heads 16 are conveyed to the position of the playback member, the finished cylinder heads are taken out by the worker and put in the next cylinder head to be processed, and the above-described actions are repeated. The grinding and beating machine for the valve line of the valve seat ring of the cylinder cover has the advantages that a worker only needs to be responsible for placing and taking a piece, the placed cylinder cover 16 can be automatically conveyed to the specified position, the valve line position of the valve seat ring of the cylinder cover is repeatedly ground and beaten, and the surface finish degree of the valve seat ring of the cylinder cover meets requirements, so that the air tightness of the cylinder cover is guaranteed, the machining efficiency is high, and the labor intensity of the worker is reduced. The lower fixing plate 1 is provided with a front limiting block 42 and a rear limiting block 42 which are matched with the front sliding plate 8 and the rear sliding plate 8. The front and rear limiting blocks 42 limit the front and rear movement distances of the front and rear sliding plates 8, and ensure the accurate movement distances. The front and rear sliding plates 8 are provided with left and right limiting blocks 43 which are matched with the left and right sliding plates 13. The left and right limiting blocks 43 are arranged to limit the left and right moving distance of the left and right sliding plates 13, and the accuracy of the moving distance is guaranteed. The gear box 24 is provided with a guide rod 44, a guide hole is formed in the mounting plate 22, a guide sleeve 45 is arranged in the guide hole, and the guide rod is matched with the guide sleeve. With the guide rod 44 and the guide sleeve 45, the gear box is guided when the up-and-down moving cylinder 23 drives the gear box 24 to move up and down.

Claims

1. Cylinder head valve seat insert valve line grinds patting machine, its characterized in that: comprises a lower fixed plate (1) and an upper fixed plate (2), a support rod (3) is connected between the upper fixed plate and the lower fixed plate, a cylinder cover positioning and moving device (101) is arranged on the lower fixed plate, a front group of rotary lifting devices and a rear group of rotary lifting devices (102) are arranged on the upper fixed plate, the cylinder cover positioning and moving device (101) comprises a front sliding rail, a rear sliding rail, a long-distance front-back moving cylinder (5) and a short-distance front-back moving cylinder (6), the front sliding rail, the long-distance front-back moving cylinder and the short-distance front-back moving cylinder are fixed with the lower fixed plate, a front sliding block (7) and a rear sliding block (8) are arranged on the front sliding rail and the rear sliding rail, a piston rod of the long-distance front-back moving cylinder (5) is connected with the front sliding plate, a left sliding block and a right sliding block (12) are arranged on a left sliding rail and a right sliding block, a left sliding plate and a right sliding plate (13) are arranged on the left sliding rail and the right sliding block, piston rods of a left air cylinder and a right air cylinder are connected with the left sliding plate and the right sliding plate, a fixed block (14) and a positioning pin (15) are arranged on the left sliding plate and the right sliding plate, an air cylinder cover (16) is arranged on the fixed block and the positioning pin, a positioning hole is arranged at the lower end of the air cylinder cover and matched with the positioning pin, an air valve (17) is arranged in the air cylinder cover, a seat ring is arranged in the air valve, the rotary lifting device (102) comprises a support (21) which is fixed with an upper fixed plate, an inclined mounting plate (22) is arranged on the support, the inclination, a motor (26) is arranged on the fixing frame, a driving gear (27) and a synchronous gear (28) are arranged in the gear box, an output shaft of the motor is connected with the driving gear, the driving gear is meshed with the synchronous gear, the synchronous gear is connected with a rotating shaft (29), the lower end of the rotating shaft penetrates through the gear box (24), an outer sleeve (30) is arranged outside the lower end of the rotating shaft, the outer sleeve is fixed with the gear box, a base (31) is arranged below the outer sleeve, an inclined convex block (32) is arranged on the base, an inclined guide surface (33) and a straight surface (34) are arranged on the inclined convex block, a slot (35) and a limiting groove (36) are arranged at the lower end of the rotating shaft (29), a rotating rod (37) is arranged in the slot, a limiting pin (38) and a sliding pin (39) are arranged on the outer wall of the, the other end of the spring is contacted with a slot (35) of the rotating shaft (29), a sliding pin (39) of the rotating rod (37) is matched with an inclined guide surface (33) on the inclined convex block (32), a sucking disc (41) is arranged at the lower end of the rotating rod, and the lower end of the sucking disc is sucked with the valve stem.

2. The cylinder head valve seat insert valve wire lapping and slapping machine of claim 1, wherein: the lower fixing plate (1) is provided with a front limiting block and a rear limiting block (42), and the front limiting block and the rear limiting block are matched with the front sliding plate and the rear sliding plate (8).

3. The cylinder head valve seat insert valve wire lapping and slapping machine of claim 1, wherein: the front and rear sliding plates (8) are provided with left and right limiting blocks (43), which are matched with the left and right sliding plates (13).

4. The cylinder head valve seat insert valve wire lapping and slapping machine of claim 1, wherein: the gearbox (24) is provided with a guide rod (44), a guide hole is formed in the mounting plate (22), a guide sleeve (45) is arranged in the guide hole, and the guide rod is matched with the guide sleeve.