CN211489670U

CN211489670U - Protective cover for automatic cam lathe machining

Info

Publication number: CN211489670U
Application number: CN201921933070.7U
Authority: CN
Inventors: 曹辉
Original assignee: Suzhou Jiaxu Precision Hardware Co ltd
Current assignee: Suzhou Jiaxu Precision Hardware Co ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-09-15
Anticipated expiration: 2029-11-11

Abstract

The utility model discloses a protective cover for automatic cam lathe processing, which comprises an inner protective cover plate and a top protective cover plate, wherein the inner protective cover plate is obliquely arranged at the right end of the top protective cover plate, the traditional outer protective cover plate and the top protective cover plate which are connected in a welding mode are improved into two novel assembling and disassembling devices for connecting and fixing by improving the connecting mode between the outer protective cover plate and the top protective cover plate of the protective cover for automatic cam lathe processing, and the outer protective cover plate and the top protective cover plate are connected and fixed in a novel assembling and disassembling mode, thereby being capable of conveniently assembling the whole protective cover and rapidly disassembling the outer protective cover plate from the top protective cover plate according to the antiskid requirement, so that when the top protective cover plate and the inner protective cover plate are only required to play a protective role in lathe processing, the outer protective cover plate can be independently disassembled, thereby increasing the use flexibility and the use functionality of the whole protective cover.

Description

Protective cover for automatic cam lathe machining

Technical Field

The utility model belongs to the technical field of the protection casing is relevant, concretely relates to automatic protection casing is used in cam lathe processing.

Background

The armor protective cover is one of machine tool protective covers, be used for preventing high temperature smear metal and other sharp-pointed thing from getting into the machine tool guide rail, play effectual guard action, organ formula machine tool guide rail protection cover of the same specification is made according to user's required size, then install the stainless steel sheet additional at the surface and make, therefore the armor formula protective cover possesses the many advantages of organ formula protective cover, and the protective cover can prevent dust and smear metal strictly, hard sand grain etc. gets into the track, reduce the damage of the graininess foreign matter of stereoplasm to the slip rail surface, can reduce the influence of guide rail because of the operation deformation to the machining precision, keep the machine tool machining precision, the protective cover surface should be smooth no burr and sharp-pointed edges and corners, should not become new danger source, and the protective cover should not influence sight and normal operation, the inspection and the maintenance of the equipment of should.

The prior protective cover technology for automatic cam lathe processing has the following problems: present automatic cam lathe processing is with protection casing trapezoidal protection casing when especially because constitute by two swash plates and a roof, thereby make the trapezoidal guard space that two swash plates and a roof are constituteed carry out the guard action to the place that the lathe needs the protection, and because mainly assemble fixedly through the welding when the equipment between two swash plates and a roof, the space that the protection casing that can cause to form trapezoidal space protects has the uniqueness like this, its direction mode that changes is more single can only carry out clockwise and anticlockwise rotation, thereby can influence the use flexibility of whole protection casing, cause its guard space and mode singleness very.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic protection casing is used in cam lathe processing to solve and to propose in the above-mentioned background art because mainly assemble fixedly through the welding when the equipment between two swash plates and a roof, the space that the protection casing that can cause to form trapezoidal space protects like this has the uniqueness, and the direction mode that its changes is more single only can carry out clockwise and anticlockwise rotation, thereby can influence the problem of the use flexibility of whole protection casing.

In order to achieve the above object, the utility model provides a following technical scheme: a protective cover for automatic cam lathe machining comprises an inner protective cover plate and a top protective cover plate, wherein the inner protective cover plate is obliquely arranged at the right end of the top protective cover plate, the inner protective cover plate and the top protective cover plate are fixedly connected through welding, an outer protective cover plate is arranged at the left end of the top protective cover plate, the top protective cover plate and the outer protective cover plate are fixedly connected through two assembly and disassembly devices, transparent observation glass is arranged inside the inner protective cover plate, the top protective cover plate and the outer protective cover plate, handles are arranged on the outer walls of the left ends of the front corner and the rear corner of the bottom of the outer protective cover plate respectively, the two handles and the outer protective cover plate are fixedly connected through screws, welding seats are arranged on the two assembly and disassembly devices, the two welding seats are respectively connected to the outer protective cover plate close to the outer walls of the right end of the front upper corner and the right end of the rear upper corner through welding, and the right, the two fixing connecting posts are internally provided with fixing adjusting screw holes with right openings, the parallel right sides of the two fixing connecting posts are respectively provided with a limiting fixed block B, the parallel right sides of the two limiting fixed blocks B are respectively provided with a limiting fixed block A, the tops of the two limiting fixed blocks B and the two limiting fixed blocks A are respectively connected on the outer wall of the bottom of the top shield plate through welding, the transverse inner parts of the two limiting fixed blocks B and the two limiting fixed blocks A are respectively provided with a movable rotating hole, the inner parts of the two fixing adjusting screw holes are respectively provided with a fixing adjusting screw rod which transversely extends towards the right, the rightmost ends of the two fixing adjusting screw rods respectively penetrate through the movable rotating holes in the two limiting fixed blocks B and are respectively connected to the inner parts of the movable rotating holes on the two limiting fixed blocks A, and the outer parts of the fixing adjusting screw rods between the two limiting, and the two hexagonal operation sleeves and the two fixed adjusting screws are fixedly connected through welding.

Preferably, the outer walls of the front lower corner and the rear lower corner of the inner protective cover plate are provided with connecting seats, the two connecting seats are fixedly connected with the inner protective cover plate through welding, the two connecting seats are internally provided with rotating sliding holes, the two connecting seats are longitudinally and horizontally parallel, the two rotating sliding holes are internally connected with an installation shaft lever, the front end and the rear end of the installation shaft lever are respectively arranged on the outer wall of the front lower corner of the inner protective cover plate and on the outer wall of the rear lower corner of the inner protective cover plate, and the two connecting seats are fixedly connected with the installation shaft lever through locking bolts.

Preferably, the foremost end of the installation shaft lever is connected with a limit baffle, the installation shaft lever and the limit baffle are fixedly connected through screws, the rearmost end of the installation shaft lever is connected with an installation seat, an installation hole is formed in the installation seat close to the inner portion of the outer side, and the installation seat and the installation shaft lever are fixedly connected through welding.

Preferably, the installation axostylus axostyle is circular cylinder structure, two the slip hole that rotates is circular poroid structure, the circumference outer wall of installation axostylus axostyle and the circumference inner wall of two slip holes that rotate are smooth wall, the circumference outer wall of installation axostylus axostyle can be complete with the laminating of two slip hole circumference inner walls that rotate.

Preferably, the shape and size of the inner protective cover plate is the same as that of the outer protective cover plate, the inner protective cover plate and the outer protective cover plate are symmetrically installed with the center point of the top protective cover plate, and the inner included angle between the inner protective cover plate and the top protective cover plate is an angle.

Preferably, the transparent observation glass that inside embedded all adopts transparent explosion-proof toughened glass to constitute of inner cover plate, top guard plate and outer guard plate, three transparent observation glass all glues respectively with inner cover plate, top guard plate and outer guard plate fixed connection through glass.

Compared with the prior art, the utility model provides an automatic protection casing is used in cam lathe processing possesses following beneficial effect:

1. the utility model improves the connecting mode between the outer shield plate and the top shield plate of the shield for automatic cam lathe processing, the traditional outer shield plate and the top shield plate which are connected by welding mode are improved to be connected and fixed by two novel assembling and disassembling devices, and the outer shield plate and the top shield plate are connected and fixed by the novel assembling and disassembling mode, thereby being capable of conveniently assembling the whole shield and quickly disassembling the outer shield plate from the top shield plate according to the antiskid requirement, when the top shield plate and the inner shield plate are only needed to play the role of protection in lathe processing, the outer shield plate can be disassembled independently, thereby increasing the use flexibility and the use functionality of the whole shield, and the fixed connecting distance between the outer shield plate and the top shield plate can be adjusted by connecting the assembling and disassembling devices, therefore, the protection range of the outer protective cover plate can be correspondingly changed according to the protection requirement;

2. the utility model discloses an equipment dismounting device's concrete using-way and principle are as follows, the equipment dismounting device who is connected on outer guard shield plate and the top guard shield plate front end inner wall is as an example, at first the last fixed connection post of this equipment dismounting device passes through the welding seat and connects on the outer guard shield plate is close to preceding upper corner right-hand member inner wall, and spacing fixed block A and spacing fixed block B keep the level to it on the half section of the left side bottom inner wall of top guard shield plate through welded connection with fixed connection post, and then there is the fixed adjusting screw who stretches out left through activity trompil connection inside spacing fixed block A and spacing fixed block B, and the fixed adjusting screw outside welding between spacing fixed block A and spacing fixed block B has six arris operation cover, like this when equipment outer guard shield plate and top guard shield plate, only need aim at the fixed regulation screw of the fixed connection on spacing fixed block A and spacing fixed block B to the inside fixed regulation screw of fixed connection on The leftmost end of the screw is inserted, when the left end of the fixed adjusting screw is inserted into the right end of the fixed adjusting screw, only the movable spanner sleeve is connected to the hexagonal operation sleeve and rotates clockwise to drive the leftmost end of the fixed adjusting screw to rotate in the fixed adjusting screw, the fixed adjusting screw rotating clockwise can slowly move towards the inside of the fixed adjusting screw through the interaction of the threads on the outer wall and the threads on the inner wall of the fixed adjusting screw, at the moment, the fixed adjusting screw is limited by the hexagonal operation sleeve limited between the limit fixing block A and the limit fixing block B, the fixed adjusting screw can only rotate without displacement through the hexagonal operation sleeve, so that the whole outer shield plate can be pulled rightwards through the fixed adjusting screw when the fixed adjusting screw rotates clockwise until the outer wall of the right end of the upper side of the outer shield plate is firmly attached to the outer wall of the left end of the top shield plate, thereby give firm equipment together to outer shroud plate and top shroud plate, when not using outer shroud plate alone because the difference of user demand like this, only need drive fixed adjusting screw rotation through six arris operation cover anticlockwise can be quick dismantle outer shroud plate from top shroud plate this moment to increase the use flexibility and the use functionality of whole protection casing, and can come the corresponding protective scope who changes outer shroud plate according to the protection demand.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic view of a three-dimensional structure of a protective cover for automatic cam lathe machining according to the present invention;

fig. 2 is a schematic view of a front plan structure of a protective cover for automatic cam lathe processing according to the present invention;

fig. 3 is a schematic view of a vertical cross-sectional structure of the assembling and disassembling device provided by the present invention;

in the figure: 1. an inner shroud plate; 2. a top shield plate; 3. assembling and disassembling the device; 4. a handle; 5. an outer shield plate; 6. transparent viewing glass; 7. a mounting seat; 8. mounting holes; 9. installing a shaft lever; 10. a connecting seat; 11. a locking bolt; 12. rotating the slide hole; 13. a limit baffle; 14. a limiting fixed block A; 15. a limiting fixed block B; 16. fixing an adjusting screw; 17. fixing a connecting column; 18. welding a base; 19. fixing an adjusting screw hole; 20. a movable rotary hole; 21. six arris operation cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a protective cover for automatic cam lathe machining comprises an inner protective cover plate 1 and a top protective cover plate 2, wherein the inner protective cover plate 1 is obliquely arranged at the right end of the top protective cover plate 2, the inner protective cover plate 1 and the top protective cover plate 2 are fixedly connected through welding, an outer protective cover plate 5 is arranged at the left end of the top protective cover plate 2, the inner protective cover plate 1 and the outer protective cover plate 5 are identical in shape and size, the inner protective cover plate 1 and the outer protective cover plate 5 are symmetrically arranged at the central point of the top protective cover plate 2, inner included angles between the inner protective cover plate 1 and the outer protective cover plate 5 and the top protective cover plate 2 are 120 degrees, the angles do not influence a lathe worker to normally approach lathe accessories to observe turning conditions, meanwhile, the protective range of the whole protective cover to a lathe can be enlarged, the space can be reasonably utilized to the maximum degree, the top protective cover plate 2 and the outer protective cover plate 5 are fixedly connected through, transparent observation glass 6 is arranged inside the inner shield plate 1, the top shield plate 2 and the outer shield plate 5, the transparent observation glass 6 embedded inside the inner shield plate 1, the top shield plate 2 and the outer shield plate 5 are all made of transparent explosion-proof toughened glass, the three transparent observation glasses 6 are respectively and fixedly connected with the inner shield plate 1, the top shield plate 2 and the outer shield plate 5 through glass cement, the lathe can enable turned waste scraps of workpieces to generate high temperature when turning the workpieces, the transparent observation glass 6 is made of transparent explosion-proof toughened glass, the situation that the transparent observation glass 6 is cracked due to the fact that the high-temperature waste scraps are splashed onto the glass can be effectively prevented, meanwhile, the transparent observation glass 6 can also facilitate the lathe worker to observe specific situations when turning in real time, handles 4 are arranged on the outer walls of the left ends of the front corner and the rear corner of the bottom of the outer shield plate 5, the two handles 4 and the outer shield plate 5 are fixedly connected through screws, the outer walls of the front lower corner and the rear lower corner of the inner shield plate 1 are respectively provided with a connecting seat 10, the two connecting seats 10 are fixedly connected with the inner shield plate 1 through welding, the inside of the two connecting seats 10 is respectively provided with a rotating sliding hole 12, the two connecting seats 10 are longitudinally and horizontally parallel, the inside of the two rotating sliding holes 12 is connected with an installation shaft lever 9, the front end and the rear end of the installation shaft lever 9 are respectively arranged at the outer part of the front end of the connecting seat 10 on the outer wall of the front lower corner of the inner shield plate 1 and the outer part of the rear end of the connecting seat 10 on the outer wall of the rear lower corner of the inner shield plate 1, the two connecting seats 10 and the installation shaft lever 9 are fixedly connected through locking bolts 11, the foremost end of the installation shaft lever 9 is connected, the installation seat 7 is internally provided with an installation hole 8 near the outer side, the installation seat 7 is fixedly connected with the installation shaft rod 9 by welding, the installation shaft rod 9 is long in length, so that the protective cover can slide forwards and backwards through the long length of the installation shaft rod 9, the protection position of the protective cover is changed, the whole protective cover can be used more flexibly, the installation shaft rod 9 is of a circular cylinder structure, the two rotary sliding holes 12 are of a circular hole-shaped structure, the circumferential outer wall of the installation shaft rod 9 and the circumferential inner walls of the two rotary sliding holes 12 are smooth walls, the circumferential outer wall of the installation shaft rod 9 can be completely attached to the circumferential inner walls of the two rotary sliding holes 12, so that the whole protective cover can be fixed more firmly after the protective cover is fixed by the installation shaft rod 9, and meanwhile, the protective cover can not shake when sliding forwards and backwards or rotating circumferentially, the stability of whole protection casing when operation use is guaranteed.

A protective cover for automatic cam lathe machining is disclosed, wherein two assembly and disassembly devices 3 are respectively provided with a welding seat 18, the two welding seats 18 are respectively connected on the outer wall of the right end of the front upper corner and the rear upper corner of an outer protective cover plate 5 by welding, the right ends of the two welding seats 18 are respectively connected with a fixed connecting post 17 transversely extending rightwards, the inner parts of the two fixed connecting posts 17 are respectively provided with a fixed adjusting screw hole 19 with a rightwards opening, the parallel right sides of the two fixed connecting posts 17 are respectively provided with a limit fixed block B15, the parallel right sides of the two limit fixed blocks B15 are respectively provided with a limit fixed block A14, the tops of the two limit fixed blocks B15 and the two limit fixed blocks A14 are respectively connected on the outer wall of the bottom of a top protective cover plate 2 by welding, the transverse inner parts of the two limit fixed blocks B15 and the two limit fixed blocks A14 are respectively provided with, the rightmost ends of the two fixed adjusting screws 16 respectively penetrate through the movable rotating holes 20 in the two limit fixing blocks B15 and are respectively connected to the movable rotating holes 20 on the two limit fixing blocks A14, the outer parts of the fixed adjusting screws 16 between the two limit fixing blocks B15 and the two limit fixing blocks A14 are respectively sleeved with a hexagonal operating sleeve 21, the two hexagonal operating sleeves 21 and the two fixed adjusting screws 16 are respectively fixedly connected by welding, when the outer shield plate 5 and the top shield plate 2 are assembled, only the fixed adjusting screw hole 19 in the fixed connecting column 17 connected to the outer shield plate 5 needs to be aligned with the leftmost end of the fixed adjusting screw 16 connected to the limit fixing block A14 and the limit fixing block B15 and inserted, after the left end of the fixed adjusting screw 16 is inserted into the right end of the fixed adjusting screw hole 19, only the movable spanner sleeve needs to be connected to the hexagonal operating sleeve 21 and rotates clockwise to drive the leftmost end of the fixed adjusting screw 16 to rotate in the fixed adjusting screw hole 19, the clockwise rotating fixed adjusting screw 16 will slowly move towards the inside of the fixed adjusting screw hole 19 through the interaction of the thread on the outer wall and the thread on the inner wall of the fixed adjusting screw hole 19, at this time, the fixed adjusting screw 16 will be limited by the hexagonal operating sleeve 21 limited between the limit fixing block a14 and the limit fixing block B15, the hexagonal operating sleeve 21 will enable the fixed adjusting screw 16 to rotate only without displacement, so the fixed adjusting screw 16 will pull the whole outer shield plate 5 rightwards through the fixed adjusting screw hole 19 when rotating clockwise, until the outer wall of the right end of the upper side of the outer shield plate 5 is firmly attached to the outer wall of the left end of the top shield plate 2, thereby the outer shield plate 5 and the top shield plate 2 are firmly assembled together, so when the outer shield plate 5 is not used alone because of different use requirements, at this time, the fixed adjusting screw 16 is driven to rotate anticlockwise and rapidly through the hexagonal operating sleeve 21, and the fixed adjusting screw 16 can be rotated The outer shield plate 5 is detached from the top shield plate 2, thereby increasing the flexibility and functionality of use of the entire shield.

The utility model discloses a theory of operation and use flow: after the utility model is installed, when the protective cover for automatic cam lathe machining is used, firstly, the front end of the installation shaft lever 9 is required to pass through the rotary slide holes 12 on the two connecting seats 10 and spread out once, when the front end of the installation shaft lever 9 passes through and is arranged on the outer wall of the front end of the connecting seat 10 on the outer wall of the right end of the front lower corner of the inner protective cover plate 1, then the limit baffle 13 is placed at the forefront end of the installation shaft lever 9 and is fixed with the installation shaft lever 9 through screws, then the whole protective cover for automatic cam lathe machining is installed and fixed on the reserved installation position on the lathe through the installation seat 7 at the rearmost end of the installation shaft lever 9, then two handles 4 on the outer protective cover plate 5 are grasped and the protective cover for automatic cam lathe machining is rotated clockwise, so that the inner protective cover plate 1, the top protective cover plate 2 and the outer protective cover plate 5 of the automatic cam lathe are just in time, then the protective cover for automatic cam lathe processing is locked under the adjusted protection state for protection by locking the locking bolts 11 on the two connecting seats 10, and the connecting mode between the outer protective cover plate 5 and the top protective cover plate 2 of the protective cover for automatic cam lathe processing is improved, the traditional outer protective cover plate 5 and the top protective cover plate 2 which are connected by welding mode are improved to be connected and fixed by two novel assembling and disassembling devices 3, and the outer protective cover plate 5 and the top protective cover plate 2 are connected and fixed by the novel assembling and disassembling mode, which can not only facilitate the assembly of the whole protective cover, but also can rapidly disassemble the outer protective cover plate 5 from the top protective cover plate 2 according to the antiskid requirement, thus when only the top protective cover plate 2 and the inner protective cover plate 1 are required to play the protection role during lathe processing, the outer protective cover plate 5 can be disassembled independently, thereby increasing the use flexibility and the use functionality of the whole protective cover.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic cam lathe processing is with protection casing, includes inner shield plate (1) and top shield plate (2), its characterized in that: the inner protective cover plate (1) is obliquely arranged at the right end of the top protective cover plate (2), the inner protective cover plate (1) and the top protective cover plate (2) are fixedly connected through welding, the outer protective cover plate (5) is arranged at the left end of the top protective cover plate (2), the top protective cover plate (2) and the outer protective cover plate (5) are fixedly connected through two assembly and disassembly devices (3), transparent observation glass (6) is arranged inside the inner protective cover plate (1), the top protective cover plate (2) and the outer protective cover plate (5), handles (4) are arranged on the outer walls of the left ends of the front and rear corners of the bottom of the outer protective cover plate (5), the two handles (4) and the outer protective cover plate (5) are fixedly connected through screws, welding seats (18) are arranged on the assembly and disassembly devices (3), the two welding seats (18) are respectively connected to the outer walls of the front upper corner and the rear upper right end of the outer protective cover plate (5) through welding, two welding seat (18) right-hand member all is connected with fixed connection post (17) transversely stretching out right, two fixed connection post (17) inside all is provided with fixed regulation screw (19) that the opening is right, two fixed connection post (17) parallel right side all is provided with spacing fixed block B (15), two the parallel right side of spacing fixed block B (15) all is provided with spacing fixed block A (14), two spacing fixed block B (15) and two spacing fixed block A (14) tops all through welded connection on the bottom outer wall of top shield plate (2), two the horizontal inside of spacing fixed block B (15) and two spacing fixed block A (14) all is provided with movable rotating hole (20), two the inside of fixed regulation screw (19) all is provided with fixed adjusting screw (16) transversely stretching out right, two fixed adjusting screw (16) right-hand member passes two inside fixed block B (15) respectively The movable rotary hole (20) is connected with the movable rotary hole (20) on the two limiting fixing blocks A (14) respectively, and the fixed adjusting screw rods (16) between the limiting fixing blocks B (15) and the two limiting fixing blocks A (14) are externally sleeved with hexagonal operation sleeves (21) respectively and fixedly connected with the two fixed adjusting screw rods (16) through welding.

2. The shield for automatic cam lathe machining according to claim 1, wherein: the inner protection cover plate is characterized in that connecting seats (10) are arranged on the outer walls of the front lower corner and the rear lower corner of the inner protection cover plate (1), the two connecting seats (10) are fixedly connected with the inner protection cover plate (1) through welding, rotating sliding holes (12) are formed in the two connecting seats (10), the two connecting seats (10) are longitudinally parallel horizontally, an installation shaft lever (9) is connected to the inside of each rotating sliding hole (12), the front end of each connecting seat (10) on the outer wall of the front lower corner of the inner protection cover plate (1) and the rear end of each connecting seat (10) on the outer wall of the rear lower corner of the inner protection cover plate (1) are arranged at the front end and the rear end of each connecting seat (10) on the outer wall of the rear lower corner of the inner protection cover plate (1) respectively.

3. The shield for automatic cam lathe machining according to claim 2, wherein: the mounting shaft lever is characterized in that the foremost end of the mounting shaft lever (9) is connected with a limiting baffle (13), the mounting shaft lever (9) is fixedly connected with the limiting baffle (13) through screws, the rearmost end of the mounting shaft lever (9) is connected with a mounting seat (7), a mounting hole (8) is formed in the mounting seat (7) close to the outer side, and the mounting seat (7) is fixedly connected with the mounting shaft lever (9) through welding.

4. The shield for automatic cam lathe machining according to claim 2, wherein: the installation axostylus axostyle (9) are circular cylinder structure, two it is circular poroid structure to rotate slide opening (12), the circumference outer wall of installation axostylus axostyle (9) and the circumference inner wall of two rotation slide openings (12) are smooth wall, the circumference outer wall of installation axostylus axostyle (9) can be complete with two laminating of rotating slide opening (12) circumference inner wall.

5. The shield for automatic cam lathe machining according to claim 1, wherein: the shape and size of the inner protective cover plate (1) and the outer protective cover plate (5) are the same, the inner protective cover plate (1) and the outer protective cover plate (5) are symmetrically installed with the center point of the top protective cover plate (2), and the inner included angle between the inner protective cover plate (1) and the outer protective cover plate (5) and the top protective cover plate (2) is 120 degrees.

6. The shield for automatic cam lathe machining according to claim 1, wherein: interior guard plate (1), top guard plate (2) and outer guard plate (5) inside embedded transparent observation glass (6) all adopt transparent explosion-proof toughened glass to constitute, three transparent observation glass (6) all glue through glass respectively with interior guard plate (1), top guard plate (2) and outer guard plate (5) fixed connection.