阅读说明：本技术 一种用于凸轮轴加工的铣削设备及其方法 (Milling equipment and method for camshaft machining ) 是由 杨小乐 丁祥 于 2021-06-21 设计创作，主要内容包括：本发明公开了凸轮轴铣削加工技术领域的一种用于凸轮轴加工的铣削设备及其方法,步骤一：将凸轮轴装入旋转头和顶尖之间；步骤二：驱动机构驱动L型移动板和铣削头移动至需要铣削的凸轮位置,防护机构对铣削位置进行防护,磨削机构贴合在凸轮轴的外表面上；本发明通过在每次对凸轮轴进行铣削时,在驱动机构驱动L型移动板移动至铣削位置后,使防护机构对凸轮轴进行包围防护,避免冲洗液和废屑胡乱飞溅,保护铣削设备,并在防护机构移动时带动磨削机构贴合在凸轮轴的外表面上,在凸轮轴转动铣削时,对凸轮轴同步进行磨削,去除凸轮轴外表面上的毛刺,提高铣削头对凸轮轴的加工精度。(The invention discloses milling equipment and a method for camshaft machining, belonging to the technical field of camshaft milling, wherein the milling equipment comprises the following steps: the camshaft is arranged between the rotating head and the tip; step two: the driving mechanism drives the L-shaped moving plate and the milling head to move to a cam position to be milled, the milling position is protected by the protection mechanism, and the grinding mechanism is attached to the outer surface of the camshaft; according to the invention, when the camshaft is milled each time, the driving mechanism drives the L-shaped moving plate to move to the milling position, the protection mechanism is enabled to surround and protect the camshaft, flushing liquid and waste chips are prevented from splashing, milling equipment is protected, the grinding mechanism is driven to be attached to the outer surface of the camshaft when the protection mechanism moves, the camshaft is synchronously ground when the camshaft rotates and is milled, burrs on the outer surface of the camshaft are removed, and the machining precision of the milling head on the camshaft is improved.)

1. Milling apparatus for camshaft machining, comprising a machining table (1), characterized in that: the milling machine is characterized in that a rotating head (2) is fixedly connected to the top of the processing table (1) close to the right, a tip (3) is fixedly connected to the top of the processing table (1) close to the left, a liquid outlet (4) is formed in the processing table (1), a first slide rail (5) is fixedly connected to the top of the processing table (1), an L-shaped moving plate (6) is slidably connected to the inside of the first slide rail (5), a driving mechanism used for driving the L-shaped moving plate (6) to move is connected to the top of the processing table (1), a milling head (7) is fixedly connected to the inside of the L-shaped moving plate (6), a flushing pipe (8) fixedly connected with the L-shaped moving plate (6) penetrates through the top of the L-shaped moving plate (6), a protection mechanism is connected to the inside of the L-shaped moving plate (6), the protection mechanism is used for sealing the milling position when the moving plate is milled, and a grinding mechanism is connected to the side wall of the L-shaped moving plate (6), the grinding mechanism is used for grinding the camshaft in machining, and the protection mechanism drives the grinding mechanism to be separated from the camshaft when being opened.

2. The milling apparatus for camshaft machining according to claim 1, characterized in that: the protection mechanism comprises two first protection plates (9), wherein the two first protection plates (9) penetrate through the L-shaped moving plate (6) and are in sliding connection with the L-shaped moving plate, the inner side walls of the two first protection plates (9) are fixedly connected with a first connecting plate (10) together, the bottom of the first connecting plate (10) is fixedly connected with an electric cylinder (11), the electric cylinder (11) is fixedly connected with the top of the L-shaped moving plate (6), the inner side walls of the two first protection plates (9) are fixedly connected with a first transparent plate (12) together, the first transparent plate (12) is in sliding connection with the L-shaped moving plate (6), the left side wall and the right side wall of the L-shaped moving plate (6) are fixedly connected with first fixing plates (13), the inner side walls of the two first fixing plates (13) are fixedly connected with rectangular sliding sleeves (14), and the two rectangular sliding sleeves (14) are in sliding connection with the top of the processing table (1), two equal sliding connection has second guard plate (15), two inside first guard plate (9) and two equal fixedly connected with half bearing ring (16), two from top to bottom on second guard plate (15) inside wall half bearing ring (16) are used for the centre gripping camshaft, two common fixedly connected with second transparent plate (17) on second guard plate (15) inside wall, second transparent plate (17) and rectangle sliding sleeve (14) sliding connection, be connected with the moving mechanism who is used for driving second guard plate (15) to remove on first guard plate (9) back side wall.

3. The milling apparatus for camshaft machining according to claim 2, characterized in that: moving mechanism includes two L type rack board (18), two L type rack board (18) fixed connection respectively is two on the rear wall of first guard plate (9), two the equal fixedly connected with rectangle adjusting block (19) in first fixed plate (13) top, two all rotate on rectangle adjusting block (19) inside wall and be connected with first gear (20), first gear (20) and L type rack board (18) meshing, two first rack (21), two of equal fixedly connected with on second guard plate (15) rear wall first rack (21) meshes with two first gear (20) respectively.

4. The milling apparatus for camshaft machining according to claim 2, characterized in that: the grinding mechanism comprises a first sliding rod (22), the first sliding rod (22) penetrates through an L-shaped moving plate (6) and is in sliding connection with the L-shaped moving plate, a grinding block (23) is connected to the front end of the first sliding rod (22) in a rotating mode, the grinding block (23) is used for grinding a cam shaft, a first spring (24) located between the L-shaped moving plate (6) and the grinding block (23) is sleeved on the outer surface of the first sliding rod (22), a first guide ring (25) is fixedly connected to the outer surface of the first sliding rod (22), two first guide blocks (26) are fixedly connected to the outer surface of the first guide ring (25), two first connecting frames (27) are fixedly connected to the outer side wall of a first protection plate (9), a first groove (28) for the first guide ring (25) and the two first guide blocks (26) to slide into is formed in the L-shaped moving plate (6), the tops of the two first connecting frames (27) are fixedly connected with second guide blocks (29), and the second guide blocks (29) are used for extruding the first guide blocks (26).

5. The milling apparatus for camshaft machining according to claim 4, characterized in that: the processing table is characterized in that two first supporting columns (30) are fixedly connected to the top of the processing table (1), two first supporting columns (30) are fixedly connected to the top end of the second rack (31) jointly, a first pin block (32) is fixedly connected to the outer surface of the first sliding rod (22), a second gear (33) is connected to the first sliding rod (22) and the first pin block (32) jointly in a sliding mode, the second gear (33) is meshed with the second rack (31), a positioning sliding sleeve (34) is connected to the rear side of the second gear (33) in a rotating mode, the positioning sliding sleeve (34) is connected to the second rack (31) in a sliding mode, the positioning sliding sleeve (34) is connected to the first sliding rod (22) and the first pin block (32) in a sliding mode, a first rotating disc (35) is fixedly connected to the outer surface of the first sliding rod (22), and an ejector rod (36) is fixedly connected to the front surface of the first rotating disc (35), the ejector pin (36) is in contact with the rear surface of the first guide ring (25).

6. The milling apparatus for camshaft machining according to claim 2, characterized in that: two common two drainage plates (37) of fixedly connected with between second guard plate (15), two drainage plate (37) are located the front and back both sides of liquid outlet (4) respectively, drainage plate (37) are used for directly draining the flush fluid to liquid outlet (4) discharge.

7. The milling apparatus for camshaft machining according to claim 1, characterized in that: the drive is including drive lead screw (38), drive lead screw (38) rotate to be connected at first slide rail (5), drive lead screw (38) run through L type movable plate (6) and rather than threaded connection, drive lead screw (38) left end runs through first slide rail (5) and fixedly connected with driving motor (39), driving motor (39) fixed connection is at the top of processing platform (1).

8. A milling method for camshaft machining, which is applied to a milling apparatus for camshaft machining according to any one of claims 1 to 7, characterized in that: the method comprises the following specific steps:

the method comprises the following steps: the camshaft is arranged between the rotating head (2) and the centre (3);

step two: the driving mechanism drives the L-shaped moving plate (6) and the milling head (7) to move to a cam position needing milling, the milling position is protected by the protection mechanism, and the grinding mechanism is attached to the outer surface of the cam shaft;

step three: starting the milling head (7) and the rotating head (2), wherein the rotating head (2) drives the camshaft to rotate continuously, and the milling head (7) at the top mills the top of the camshaft;

step four: after milling, the protection mechanism is opened, the grinding mechanism is separated from the camshaft, and milling of one position of the camshaft is completed.

Technical Field

The invention relates to the technical field of camshaft milling, in particular to milling equipment and a method for camshaft machining.

Background

The camshaft is a component in a piston engine. Its function is to control the opening and closing action of the valve. Although the rotational speed of the camshaft is half of that of the crankshaft in a four-stroke engine (the rotational speed of the camshaft is the same as that of the crankshaft in a two-stroke engine), the rotational speed is still high and the camshaft is subjected to a large torque, so that the camshaft is required to be high in strength and support in design, and the camshaft is generally made of high-quality alloy steel or alloy steel.

The prior art discloses invention patents in the aspect of milling of partial camshafts, and Chinese patent with the patent application number of CN201922246498.0 discloses a high-efficiency milling device for processing camshafts, which belongs to the technical field of camshaft processing and aims to solve the problems that in the existing processing mode, a cutter and a part are easy to vibrate during processing, so that the dimensional tolerance is increased, the form and position tolerance of a cam is influenced to be out of tolerance or even to generate waste products, the service life of the cutter is seriously influenced, the processing speed is reduced, and the production efficiency is influenced, and the device comprises a bottom plate; the left side of the top of the bottom plate is fixedly connected with a group of rotating heads; the right side of the bottom plate is slidably connected with a group of the apexes; and two groups of intermediate supporting seats are arranged above the middle part of the bottom plate.

Milling cutter mills the camshaft among the prior art, often cooperate the flush fluid to cool off and wash milling department, need mill the camshaft many times and just can mill the shaping completely with the camshaft, and the camshaft is incessantly rotating, lead to milling burr can produce between the position that has milled and the position that does not mill, mill the burr and can't be washed away by the flush fluid, adhere to on the surface of camshaft, can influence the follow-up milling to the camshaft of milling cutter, and the flush fluid can splash everywhere when milling, be unfavorable for the personnel in time to observe the condition of milling of camshaft.

Based on the technical scheme, the invention designs a milling device and a method for camshaft machining to solve the problems.

Disclosure of Invention

The invention aims to provide milling equipment for camshaft machining and a method thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a milling device for processing a camshaft comprises a processing table, wherein a rotating head is fixedly connected to the top of the processing table close to the right, the top of the processing table is fixedly connected with a centre close to the left, a liquid outlet is arranged in the processing table, the top of the processing table is fixedly connected with a first slide rail, the first slide rail is connected with an L-shaped moving plate in a sliding way, the top of the processing table is connected with a driving mechanism for driving the L-shaped moving plate to move, the interior of the L-shaped moving plate is fixedly connected with a milling head, the top of the L-shaped moving plate is penetrated with a flushing pipe fixedly connected with the L-shaped moving plate, the interior of the L-shaped moving plate is connected with a protection mechanism which is used for sealing a milling position during milling, the side wall of the L-shaped moving plate is connected with a grinding mechanism, the grinding mechanism is used for grinding a camshaft in machining, and the protection mechanism drives the grinding mechanism to be separated from the camshaft when being opened;

the protection mechanism comprises two first protection plates, the two first protection plates penetrate through and are in sliding connection with the L-shaped movable plate, a first connecting plate is fixedly connected to the inner side walls of the two first protection plates together, an electric cylinder is fixedly connected to the bottom of the first connecting plate and is fixedly connected to the top of the L-shaped movable plate, a first transparent plate is fixedly connected to the inner side walls of the two first protection plates together, the first transparent plate is in sliding connection with the L-shaped movable plate, a first fixing plate is fixedly connected to the left side wall and the right side wall of the L-shaped movable plate respectively, rectangular sliding sleeves are fixedly connected to the inner side walls of the two first fixing plates respectively, the two rectangular sliding sleeves are in sliding connection with the top of the processing table respectively, a second protection plate is slidably connected to the insides of the two rectangular sliding sleeves respectively, and half bearing rings are fixedly connected to the inner side walls of the two first protection plates and the two second protection plates respectively, the upper half bearing ring and the lower half bearing ring are used for clamping a cam shaft, the inner side walls of the two second protection plates are fixedly connected with a second transparent plate together, the second transparent plate is connected with a rectangular sliding sleeve in a sliding mode, and the rear side wall of the first protection plate is connected with a moving mechanism used for driving the second protection plate to move;

the moving mechanism comprises two L-shaped toothed plates, the two L-shaped toothed plates are fixedly connected to the rear side walls of the two first protection plates respectively, the tops of the two first fixing plates are fixedly connected with rectangular adjusting blocks, the inner side walls of the two rectangular adjusting blocks are rotatably connected with first gears, the first gears are meshed with the L-shaped toothed plates, the rear side walls of the two second protection plates are fixedly connected with first racks, and the two first racks are meshed with the two first gears respectively;

the grinding mechanism comprises a first slide bar, the first slide bar penetrates through the L-shaped moving plate and is in sliding connection with the L-shaped moving plate, the front end of the first slide bar is rotatably connected with a grinding block, the grinding block is used for grinding the cam shaft, a first spring positioned between the L-shaped moving plate and the grinding block is sleeved on the outer surface of the first slide bar, a first guide ring is fixedly connected onto the outer surface of the first slide bar, two first guide blocks are fixedly connected onto the outer surface of the first guide ring, first connecting frames are fixedly connected onto the outer side walls of the two first protection plates, first grooves for the first guide ring and the two first guide blocks to slide into are formed in the L-shaped moving plate, second guide blocks are fixedly connected onto the tops of the two first connecting frames, and the second guide blocks are used for extruding the first guide blocks;

the top of the processing table is fixedly connected with two first supporting columns, the top ends of the two first supporting columns are fixedly connected with a second rack together, the outer surface of the first sliding rod is fixedly connected with a first pin block, the first sliding rod and the first pin block are connected with a second gear together in a sliding manner, the second gear is meshed with the second rack, the rear side of the second gear is rotatably connected with a positioning sliding sleeve, the positioning sliding sleeve is slidably connected with the second rack, the positioning sliding sleeve is slidably connected with the first sliding rod and the first pin block, the outer surface of the first sliding rod is fixedly connected with a first rotary table, the front surface of the first rotary table is fixedly connected with an ejector rod, and the ejector rod is in contact with the rear surface of a first guide ring;

two drainage plates are fixedly connected between the two second protection plates together, the two drainage plates are respectively positioned at the front side and the rear side of the liquid outlet, and the drainage plates are used for directly draining the flushing liquid to the liquid outlet for discharging;

the driving mechanism comprises a driving screw rod, the driving screw rod is rotatably connected to a first slide rail, the driving screw rod penetrates through the L-shaped moving plate and is in threaded connection with the L-shaped moving plate, the left end of the driving screw rod penetrates through the first slide rail and is fixedly connected with a driving motor, and the driving motor is fixedly connected to the top of the machining table;

a milling method for camshaft machining comprises the following specific steps:

the method comprises the following steps: the camshaft is arranged between the rotating head and the tip;

step two: the driving mechanism drives the L-shaped moving plate and the milling head to move to a cam position to be milled, the milling position is protected by the protection mechanism, and the grinding mechanism is attached to the outer surface of the camshaft;

step three: starting the milling head and the rotating head, driving the camshaft to rotate continuously by the rotating head, and milling the top of the camshaft by the milling head at the top;

step four: after milling, the protection mechanism is opened, the grinding mechanism is separated from the camshaft, and milling of one position of the camshaft is completed.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, when the camshaft is milled each time, the driving mechanism drives the L-shaped moving plate to move to the milling position, the protection mechanism is enabled to surround and protect the camshaft, flushing liquid and waste chips are prevented from splashing, milling equipment is protected, the grinding mechanism is driven to be attached to the outer surface of the camshaft when the protection mechanism moves, the camshaft is synchronously ground when the camshaft rotates and is milled, burrs on the outer surface of the camshaft are removed, and the machining precision of the milling head on the camshaft is improved.

2. According to the invention, after milling is finished, when the milling is required to be moved to the next position of the camshaft for milling, the driving mechanism drives the L-shaped moving plate to move left and right, so that the second gear rotates under the action of the second rack, the second gear drives the first sliding rod and the first rotary disc to rotate through the first pin block, the ejector rod fixedly connected with the first rotary disc rotates, the ejector rod is acted by the first guide ring and matched with the first spring to enable the first sliding rod to move back and forth, and the first sliding rod drives the grinding block to vibrate back and forth, so that flushing liquid and waste chips on the grinding block are shaken off after milling is finished, and the effect of the flushing liquid and the waste chips on the camshaft is avoided being influenced by the grinding block.

Drawings

FIG. 1 is a flow chart of a milling method of camshaft machining of the present invention;

FIG. 2 is a schematic view of a first three-dimensional structure according to the present invention;

FIG. 3 is a second perspective view of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

FIG. 5 is an enlarged view of the structure at B in FIG. 3;

FIG. 6 is a schematic view of a third three-dimensional structure of the present invention (hiding the first transparent board and the second transparent board);

FIG. 7 is a fourth perspective view of the present invention (hiding the first and second shielding plates on the right side);

FIG. 8 is a schematic structural view of an L-shaped moving plate and a first sliding bar according to the present invention;

FIG. 9 is an enlarged view of the structure of FIG. 8 at C;

fig. 10 is a schematic view of the internal structure of the L-shaped moving plate of the present invention (hiding the first and second shielding plates on the left side).

In the drawings, the components represented by the respective reference numerals are listed below:

the machining device comprises a machining table 1, a rotating head 2, a tip 3, a liquid outlet 4, a first slide rail 5, an L-shaped moving plate 6, a milling head 7, a flushing pipe 8, a first protection plate 9, a first connection plate 10, an electric cylinder 11, a first transparent plate 12, a first fixing plate 13, a rectangular sliding sleeve 14, a second protection plate 15, a half bearing ring 16, a second transparent plate 17, an L-shaped toothed plate 18, a rectangular adjusting block 19, a first gear 20, a first rack 21, a first sliding rod 22, a grinding block 23, a first spring 24, a first guide ring 25, a first guide block 26, a first connecting frame 27, a first groove 28, a second guide block 29, a first supporting column 30, a second rack 31, a first pin block 32, a second gear 33, a positioning sliding sleeve 34, a first rotating disc 35, an ejector rod 36, a drainage plate 37, a driving screw rod 38 and a driving motor 39.

Detailed Description

Referring to fig. 1-10, the present invention provides a technical solution: a milling device for processing a camshaft comprises a processing table 1, wherein the top of the processing table 1 is fixedly connected with a rotating head 2 close to the right, the top of the processing table 1 is fixedly connected with a tip 3 close to the left, a liquid outlet 4 is formed in the processing table 1, the top of the processing table 1 is fixedly connected with a first slide rail 5, an L-shaped moving plate 6 is slidably connected in the first slide rail 5, the top of the processing table 1 is connected with a driving mechanism for driving the L-shaped moving plate 6 to move, a milling head 7 is fixedly connected in the L-shaped moving plate 6, a flushing pipe 8 fixedly connected with the L-shaped moving plate 6 penetrates through the top of the L-shaped moving plate 6, a protection mechanism is connected in the L-shaped moving plate 6 and used for sealing a milling position during milling, a grinding mechanism is connected to the side wall of the L-shaped moving plate and used for grinding the camshaft in the processing moving plate, and the protection mechanism drives the grinding mechanism to be separated from the camshaft when the protection mechanism is opened;

the protection mechanism comprises two first protection plates 9, wherein the two first protection plates 9 penetrate through and are connected with the L-shaped moving plate 6 in a sliding manner, the inner side walls of the two first protection plates 9 are fixedly connected with a first connecting plate 10 together, the bottom of the first connecting plate 10 is fixedly connected with an electric cylinder 11, the electric cylinder 11 is fixedly connected with the top of the L-shaped moving plate 6, the inner side walls of the two first protection plates 9 are fixedly connected with a first transparent plate 12 together, the first transparent plate 12 is connected with the L-shaped moving plate 6 in a sliding manner, the left and right side walls of the L-shaped moving plate 6 are fixedly connected with first fixing plates 13, the inner side walls of the two first fixing plates 13 are fixedly connected with rectangular sliding sleeves 14, the two rectangular sliding sleeves 14 are connected with the top of the processing table 1 in a sliding manner, the inside of the two rectangular sliding sleeves 14 is connected with a second protection plate 15 in a sliding manner, and the inner side walls of the two first protection plates 9 and the two second protection plates 15 are fixedly connected with half bearing rings 16, the upper half bearing ring 16 and the lower half bearing ring 16 are used for clamping a camshaft, the inner side walls of the two second protection plates 15 are fixedly connected with a second transparent plate 17 together, the second transparent plate 17 is connected with the rectangular sliding sleeve 14 in a sliding manner, and the rear side wall of the first protection plate 9 is connected with a moving mechanism used for driving the second protection plates 15 to move;

the moving mechanism comprises two L-shaped toothed plate 18, the two L-shaped toothed plate 18 are respectively and fixedly connected to the rear side walls of the two first protection plates 9, the tops of the two first fixing plates 13 are respectively and fixedly connected with a rectangular adjusting block 19, the inner side walls of the two rectangular adjusting blocks 19 are respectively and rotatably connected with a first gear 20, the first gear 20 is meshed with the L-shaped toothed plate 18, the rear side walls of the two second protection plates 15 are respectively and fixedly connected with a first rack 21, and the two first racks 21 are respectively meshed with the two first gears 20;

the grinding mechanism comprises a first slide bar 22, the first slide bar 22 penetrates through the L-shaped moving plate 6 and is in sliding connection with the L-shaped moving plate, a grinding block 23 is rotatably connected to the front end of the first slide bar 22, the grinding block 23 is used for grinding a camshaft, a first spring 24 located between the L-shaped moving plate 6 and the grinding block 23 is sleeved on the outer surface of the first slide bar 22, a first guide ring 25 is fixedly connected to the outer surface of the first slide bar 22, two first guide blocks 26 are fixedly connected to the outer surface of the first guide ring 25, first connecting frames 27 are fixedly connected to the outer side walls of the two first protection plates 9, first grooves 28 for the first guide ring 25 and the two first guide blocks 26 to slide into are formed in the L-shaped moving plate 6, second guide blocks 29 are fixedly connected to the tops of the two first connecting frames 27, and the second guide blocks 29 are used for extruding the first guide blocks 26;

when the device is used, the electric cylinder 11 is in an extending state, so that the first protection plate 9 and the second protection plate 15 are in an opening state, the second guide block 29 is driven by the first protection plate 9 to be in a position for extruding the first guide block 26, the first sliding rod 22 and the grinding block 23 both slide backwards, the grinding block 23 is far away from the camshaft, the grinding block 23, the first protection plate 9 and the second protection plate 15 are prevented from interfering the L-shaped moving plate 6 to move, the camshaft is arranged between the rotating head 2 and the tip 3, when a certain cam position needs to be milled, the driving mechanism drives the L-shaped moving plate 6 and the milling head 7 to move to the cam position needing to be milled, then the electric cylinder 11 stretches out and draws back to drive the two first protection plates 9 to move downwards simultaneously through the first connecting plate 10, the first protection plate 9 drives the L-shaped tooth plates 18 to move downwards synchronously, the first rack 21 is moved upwards through the first gear 20, the two second protection plates 15 are driven to move upwards together to be in butt joint with the first protection plate 9 slowly, finally the first protection plate 9 and the second protection plate 15 are in mutual contact, the two sets of half bearing rings 16 clamp the camshaft to continuously support the camshaft to be processed, the camshaft is prevented from jumping during processing, the processing position of the camshaft is completely protected by matching the first transparent plate 12 and the second transparent plate 17, milled scraps and flushing fluid are prevented from splashing, the flushing fluid and the scraps are timely discharged from the liquid outlet 4 to avoid interference with sliding of the rectangular sliding sleeve 14, personnel can conveniently and timely observe milling conditions of the camshaft by the first transparent plate 12 and the second transparent plate 17, and in the downward sliding process of the first protection plate 9, the second guide block 29 is driven to move downwards by the first connecting frame 27 to enable the second guide block 29 to be separated from extruding the first guide block 26, the first guide block 26, the first guide ring 25, the first slide rod 22 and the grinding block 23 slide forward under the action of the first spring 24, so that the grinding block 23 is attached to the outer surface of the cam, finally, the milling head 7 and the rotary head 2 are started, the rotary head 2 drives the cam shaft to rotate continuously, the top of the cam shaft is milled by the milling head 7 at the top, when the cam shaft rotates and is milled, burrs generated during milling are removed through grinding through the action of the grinding block 23, the grinding block 23 is squeezed by the first spring 24, so that the grinding block 23 and the cam have large elasticity, the grinding block 23 and the cam are prevented from interfering rotation of the cam shaft, the milling head 7 can better mill the cam shaft subsequently, the cam shaft is milled conveniently, after the milling is completed, the electric cylinder 11 is restarted, the first protection plate 9 and the second protection plate 15 are opened slowly, and simultaneously, the first guide block 26 is squeezed again by the second guide block 29, make first slide bar 22 and grinding piece 23 break away from the camshaft once more, accomplish milling of a camshaft position, thereby realize milling the camshaft at every turn, after actuating mechanism drive L type movable plate 6 removed to milling the position, make protection machanism surround the protection to the camshaft, avoid flush fluid and sweeps to splash in disorder, the protection equipment of milling, and drive grinding mechanism laminating on the surface of camshaft when protection machanism removes, when the camshaft rotates to mill, grind the camshaft in step, get rid of the burr on the camshaft surface, improve the machining precision of milling head 7 to the camshaft.

As a further scheme of the invention, two first support columns 30 are fixedly connected to the top of the processing table 1, the top ends of the two first support columns 30 are fixedly connected to a second rack 31, a first pin block 32 is fixedly connected to the outer surface of the first slide bar 22, the first slide bar 22 and the first pin block 32 are slidably connected to a second gear 33, the second gear 33 is meshed with the second rack 31, a positioning sliding sleeve 34 is rotatably connected to the rear side of the second gear 33, the positioning sliding sleeve 34 is slidably connected to the second rack 31, the positioning sliding sleeve 34 is slidably connected to the first slide bar 22 and the first pin block 32, a first rotating disc 35 is fixedly connected to the outer surface of the first slide bar 22, a top rod 36 is fixedly connected to the front surface of the first rotating disc 35, and the top rod 36 is in contact with the rear surface of the first guide ring 25; in operation, since some of the washing liquid and debris are in the washing and milling position, the washing liquid and debris may remain on the grinding block 23, the next time the camshaft is ground by the grinding block 23 may be influenced, when the camshaft needs to be moved to the next position for milling after the milling is finished, the driving mechanism drives the L-shaped moving plate 6 to move left and right, so that the second gear 33 rotates under the action of the second rack 31, the second gear 33 drives the first slide bar 22 and the first rotary disc 35 to rotate through the first pin block 32, the top rod 36 fixedly connected with the first rotary disc 35 rotates, the top rod 36 is acted by the first guide ring 25, and cooperates with the first spring 24, so that the first slide bar 22 moves back and forth, the first slide bar 22 drives the grinding block 23 to vibrate back and forth, thereby realize milling the completion back, shake off flush fluid and sweeps on the grinding piece 23, avoid flush fluid and sweeps to influence the grinding effect of grinding piece 23 to the camshaft.

As a further scheme of the present invention, two drainage plates 37 are fixedly connected between the two second protection plates 15, the two drainage plates 37 are respectively located at the front and rear sides of the liquid outlet 4, and the drainage plates 37 are used for directly draining the flushing liquid to the liquid outlet 4 for discharging; during operation, because partial flush fluid and sweeps may fall on the top of processing platform 1, be unfavorable for the removal of rectangle sliding sleeve 14 at processing platform 1 top, two drainage plates 37 through fixed connection between two second guard plates 15, two drainage plates 37 mark second guard plate 15 completely, after first guard plate 9 and second guard plate 15 dock, can protect completely all flush fluids and sweeps inside first guard plate 9 and second guard plate 15, and direct drainage to the position of liquid outlet 4, directly discharge from liquid outlet 4, avoid sweeps and flush fluid to stop at the top of processing platform 1, guarantee the steady operation of equipment.

As a further scheme of the invention, the driving mechanism comprises a driving screw rod 38, the driving screw rod 38 is rotatably connected to the first slide rail 5, the driving screw rod 38 penetrates through the L-shaped moving plate 6 and is in threaded connection with the L-shaped moving plate, the left end of the driving screw rod 38 penetrates through the first slide rail 5 and is fixedly connected with a driving motor 39, and the driving motor 39 is fixedly connected to the top of the processing table 1; in operation, as the L-shaped moving plate 6 needs to be driven to move to different processing positions, the driving motor 39 is started to drive the driving screw 38 to rotate, so that the L-shaped moving plate 6 slides along the first slide bar 22, and the L-shaped moving plate 6 moves to the position to be processed.