CN113941950A

CN113941950A - Method and device for machining plate type multi-way valve

Info

Publication number: CN113941950A
Application number: CN202010611270.1A
Authority: CN
Inventors: 徐�明; 景军清; 邵宗光; 荆兴亚; 孙坚
Original assignee: Xuzhou XCMG Hydraulics Co Ltd
Current assignee: Xuzhou XCMG Hydraulics Co Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2022-01-18
Anticipated expiration: 2040-06-30
Also published as: CN113941950B

Abstract

The invention relates to a method and a device for machining a chip type multi-way valve, wherein the method for machining the chip type multi-way valve comprises the following steps: firstly, a plurality of valve plates are assembled to form the multi-way valve, and then valve holes of the multi-way valve are repaired and honed. The valve block is assembled into the multi-way valve, and then the valve hole on the multi-way valve is integrally honed, so that even if the valve hole is deformed in the assembling and screwing processes of the valve blocks, the valve hole can be machined again through the integral honing, the matching precision of the valve rod and the valve hole is improved, the valve rod is prevented from being clamped and blocked, the working performance of the plate type multi-way valve is improved, and the service life of the plate type multi-way valve is prolonged.

Description

Method and device for machining plate type multi-way valve

Technical Field

The invention relates to the technical field of multi-way valve machining, in particular to a method and a device for machining a sheet type multi-way valve.

Background

Honing is a processing method for finishing a finish-processed surface with a whetstone (also called honing stick) mounted on a honing head. Reaming is a machining method for cutting a trace metal layer from the wall of a workpiece hole by using a reamer so as to improve the dimensional accuracy and the surface quality of the hole. The reaming and honing process is developed on the basis of traditional honing and is a process combining a honing processing method and a reaming processing method. Reaming and honing generally has only one reciprocating motion and is also called single-stroke honing.

The reaming and honing process differs from the honing process mainly in that the reaming and honing head differs from the actual honing process. Compared with the traditional honing process, the honing head of the reaming and honing process is preset to the final machining size required by the workpiece, and cutter feeding is not needed, so that the machining rhythm of reaming and honing is fast, and the cutting process can be completed only by 1-3 reciprocating strokes. The thickness of each honing head for removing the metal layer is 2-20 mu m. After reaming and honing, the precision grade of the shape and the size of the hole can be improved, and the surface roughness value can reach Ra less than or equal to 0.2.

In the machining process of the plate type multi-way valve, firstly, machining of a single valve body is completed, and a valve hole in each valve body is subjected to finish machining by adopting a honing process; then the multiple valve bodies are assembled together, and in the assembling process, due to the influence of tightening torque, valve holes on some valve bodies may deform, so that the matching precision of the valve rod and the valve core hole is reduced, and the problems of valve rod clamping stagnation and the like are caused. In addition, the existing reaming and honing equipment has low positioning precision on the workpiece, so that a large error is generated in the machining process.

It is noted that the information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

Disclosure of Invention

The embodiment of the invention provides a method and a device for machining a chip type multi-way valve, which solve the problem that valve stem clamping stagnation is caused by valve hole deformation easily occurring after the chip type multi-way valve is assembled and screwed down as far as possible.

According to one aspect of the invention, a method for machining a chip type multi-way valve is provided, which comprises the following steps:

firstly, a plurality of valve plates are assembled to form the multi-way valve, and then valve holes of the multi-way valve are repaired and honed.

In some embodiments, the operation of honing the valve bore of the multi-way valve comprises:

and (4) utilizing a reaming and honing process to repair and hone the valve hole of the multi-way valve.

In some embodiments, before the trimming and honing the valve hole of the multi-way valve, the method further comprises:

and positioning the multi-way valve.

According to another aspect of the present invention, there is provided a disc type multi-way valve processing apparatus based on the above disc type multi-way valve processing method, including:

a work table;

a tool movably disposed relative to the table; and

and the positioning device is arranged on the workbench and is configured to position the multi-way valve to be processed.

In some embodiments, the positioning device comprises a first positioning plate, the multi-way valve is fixed on the first positioning plate, and the first positioning plate is arranged on the workbench.

In some embodiments, the positioning device includes a second positioning plate disposed on the table, and the first positioning plate is disposed on the second positioning plate.

In some embodiments, a surface of the second positioning plate is provided with a protrusion, the first positioning plate is in contact with the protrusion, and the protrusion is configured to reduce resistance to movement of the first positioning plate relative to the second positioning plate.

In some embodiments, the table is provided with a guide mechanism configured to guide the movement of the first positioning plate onto the second positioning plate.

In some embodiments, the positioning device comprises at least two limiting plates arranged on the second positioning plate, and the at least two limiting plates form a limiting channel to limit the motion track of the first positioning plate.

In some embodiments, the first positioning plate is provided with a first positioning hole, the second positioning plate is provided with a second positioning hole, and the positioning device further comprises a first connecting member inserted into the first positioning hole and the second positioning hole.

In some embodiments, the positioning device includes a positioning assembly for maintaining the relative position between the second positioning plate and the table.

In some embodiments, the positioning assembly includes a jacking device that butts against a side of the second positioning plate.

In some embodiments, the positioning assembly includes a pressing device that presses against the top surface of the second positioning plate.

In some embodiments, the positioning device includes a positioning shaft, the second positioning plate is provided with a third positioning hole, and the positioning shaft is inserted into the third positioning hole before the positioning assembly acts and leaves the third positioning hole after the positioning assembly fixes the second positioning plate.

In some embodiments, the plate type multi-way valve machining device further comprises a base and a tool rest, the tool is mounted on the tool rest, the tool rest is movably mounted on the base, and the positioning shaft is mounted on the tool rest.

In some embodiments, the plate type multi-way valve machining device further comprises a base, a tool holder and a brush, wherein the tool holder is movably mounted on the base, and the tool and the brush are respectively mounted on the tool holder.

Based on the technical scheme, the multi-way valve is formed by assembling the plurality of valve plates, then the valve hole in the multi-way valve is integrally honed, and the valve hole can be machined again through the integral honing even if the valve hole is deformed in the assembling and screwing process of the plurality of valve plates, so that the matching precision of the valve rod and the valve hole is improved, the valve rod is prevented from being clamped and blocked, the working performance of the plate type multi-way valve is improved, and the service life of the plate type multi-way valve is prolonged.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a front view of one embodiment of the plate-type multi-way valve processing apparatus of the present invention.

Fig. 2 is a right side view of one embodiment of the plate-type multi-way valve processing apparatus of the present invention.

Fig. 3 is a plan view of one embodiment of the plate type multi-way valve processing device of the present invention.

In the figure:

1. a work table; 2. a base; 3. a tool holder; 4. positioning the shaft; 5. a cutter; 6. a drive box; 7. a brush; 8. a first positioning plate; 9. a second positioning plate; 10. a limiting plate; 11. a jacking device; 12. a pressing device; 20. a multiway valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the scope of the invention.

In some embodiments of the method of the present invention, the method comprises:

firstly, a plurality of valve plates are assembled to form the multi-way valve 20, and then the valve hole of the multi-way valve 20 is repaired and honed.

Before assembly, each valve plate is provided with a valve hole, the valve core of the multi-way valve 20 formed after assembly is provided with at least one valve hole, and the valve hole on the valve core is formed by the valve hole on one valve plate or formed by the valve holes on a plurality of valve plates in a penetrating way.

In the embodiments, the plurality of valve plates are assembled to form the multi-way valve 20, and then the valve hole on the multi-way valve 20 is integrally honed, so that even if the valve hole is deformed in the assembling and screwing process of the plurality of valve plates, the valve hole can be machined again through the step of integrally honed, thereby improving the matching precision of the valve rod and the valve hole, avoiding the clamping stagnation of the valve rod, improving the working performance and prolonging the service life of the plate type multi-way valve.

At present, in the field of multi-way valve processing, in order to solve the problem that a valve hole is easy to deform, the solution of technical personnel is limited to how to improve the assembly precision, for example, the deformation of the valve hole is reduced by improving the assembly steps or assembly tools, and the like. The technical means adopted by the embodiment of the invention is different from other means in the field of multi-way valve processing, so that the assembly requirement can be reduced, and the problem of valve hole deformation can be effectively solved.

In some embodiments, the operation of honing the valve bore of the multiplex valve 20 includes:

the valve hole of the multi-way valve 20 is repaired and honed by using a reaming and honing process.

The reaming and honing process is favorable for improving the machining precision of the valve hole, so that the matching precision of the valve rod and the valve hole is improved, and smooth action of the valve rod is ensured.

The single-stroke reaming and honing process is adopted, the machining allowance of the valve hole is less, and the machining efficiency can be improved.

In some embodiments, before the trimming and honing the valve hole of the multi-way valve 20, the method further includes:

the multiplex valve 20 is positioned.

In the above embodiment, the multi-way valve 20 is first positioned, and then the trimming and honing are performed, so that the working position of the tool can be set in advance, and after the multi-way valve 20 is positioned and reaches the preset position, the tool moves to the preset position for reaming and honing, so that the positioning can improve the processing efficiency, avoid the occurrence of processing errors, and reduce the processing precision.

The invention also provides a chip type multi-way valve processing device which can be used for processing when the multi-way valve 20 is processed by the chip type multi-way valve processing method in the embodiments.

In some embodiments, referring to fig. 1 and 2, the plate-type multi-way valve machining apparatus includes a table 1, a tool 5, and a positioning device, the tool 5 being movably disposed with respect to the table 1, the positioning device being disposed on the table 1, the positioning device being configured to position a multi-way valve 20 to be machined.

After the multi-way valve 20 to be machined is positioned on the table 1 by the positioning device, the cutter 5 is moved to the valve hole of the multi-way valve 20 to machine the valve hole.

Through setting up positioner, can improve machining efficiency, reduce machining error, guarantee the accuracy of processing.

In some embodiments, as shown in fig. 3, the positioning device includes a first positioning plate 8, the multi-way valve 20 is fixed on the first positioning plate 8, and the first positioning plate 8 is disposed on the worktable 1.

Through setting up first locating plate 8, can fix multiple unit valve 20, the relative position of multiple unit valve 20 and first locating plate 8 remains fixed unchangeable, consequently can be with the location to multiple unit valve 20 change the location to first locating plate 8. The advantage of this arrangement is that the positioning device can be adapted to different configurations of the multi-way valve 20, and the positioning can be achieved by fixing the multi-way valve 20 to the first positioning plate 8.

In some embodiments, the positioning device comprises a second positioning plate 9 disposed on the work table 1, and the first positioning plate 8 is disposed on the second positioning plate 9.

Further, the surface of the second positioning plate 9 is provided with a protrusion with which the first positioning plate 8 is in contact, the protrusion being configured to reduce resistance to movement of the first positioning plate 8 relative to the second positioning plate 9.

Through the arrangement of the bulges, in the reaming and honing process, micro (generally micron-scale) relative movement can be generated between the first positioning plate 8 and the second positioning plate 9, the problem of uneven stress of a cutter caused by errors such as position degree, verticality, straightness and the like is solved, micron-scale cutting allowance is ensured, and the cutting process is controllable.

In some embodiments, the protrusions comprise spherical portions that enable the first positioning plate 8 to slide relative to the second positioning plate 9, thereby reducing resistance to movement of the first positioning plate 8 relative to the second positioning plate 9.

In some embodiments, the table 1 is provided with a guiding mechanism configured to guide the first positioning plate 8 onto the second positioning plate 9.

In some embodiments, the guiding mechanism may be a guide rail such that the first positioning plate 8 may slide onto the second positioning plate 9. For example, an operator can apply a pushing force to the first positioning plate 8, so as to push the first positioning plate 8 and the multi-way valve 20 to be processed fixed on the first positioning plate 8 onto the second positioning plate 9, which is time-saving and labor-saving.

In other embodiments, the guiding mechanism may have other structures, such as rotating the first positioning plate 8 to the second positioning plate 9.

Through setting up guiding mechanism, can guide the motion of first locating plate 8, prevent to take place the skew, improve the motion accuracy of first locating plate 8.

In some embodiments, the positioning device includes at least two limiting plates 10 disposed on the second positioning plate 9, and the at least two limiting plates 10 form a limiting channel to limit the movement track of the first positioning plate 8.

Through setting up limiting plate 10, can form the spacing passageway that restricts the movement track of first locating plate 8 for first locating plate 8 moves to predetermined position in spacing passageway, prevents that the movement track from taking place to deviate.

As shown in fig. 3, the number of the limiting plates 10 is three, the first side of the first positioning plate 8 is provided with one limiting plate 10, the second side of the first positioning plate 8, which is opposite to the first side, is provided with two limiting plates 10, a limiting channel is formed between one limiting plate 10 of the first side and the two limiting plates 10 of the second side, before the first positioning plate 8 moves relative to the second positioning plate 9 to reach the preset position, the first positioning plate 8 moves in the limiting channel, the movement track of the first positioning plate 8 can be limited, and a good positioning effect is achieved.

In the embodiment shown in fig. 3, the number of the stopper plates 10 provided on the first side is different from the number of the stopper plates 10 provided on the second side. In other embodiments, the number of the limiting plates 10 provided on the first side and the second side may be the same.

In some embodiments, the first positioning plate 8 is provided with a first positioning hole, the second positioning plate 9 is provided with a second positioning hole, and the positioning device further comprises a first connecting member inserted into the first positioning hole and the second positioning hole.

The first connecting piece can be a bolt or a pin and the like, and is connected with the first positioning plate 8 and the second positioning plate 9 through the first connecting piece, so that the first positioning plate 8 and the second positioning plate 9 can be positioned.

In some embodiments, the positioning device may further include a second connecting member, and the second connecting member is used for connecting the multi-way valve 20 and the second positioning plate 9, so as to position the multi-way valve 20 and the second positioning plate 9.

The first connecting piece and the second connecting piece are used for realizing the relative fixation among the multi-way valve 20, the first positioning plate 8 and the second positioning plate 9. In some embodiments, the first connecting member and the second connecting member may be provided at the same time or alternatively.

In some embodiments, the positioning means comprises a positioning assembly for maintaining the relative position between the second positioning plate 9 and the table 1.

By providing the positioning assembly, the second positioning plate 9 can be positioned. The positioning assembly can adopt an oil cylinder, an air cylinder or a stepping motor and the like.

In some embodiments, the positioning assembly comprises a tightening device 11 abutting against the side of the second positioning plate 9.

In some embodiments, the positioning assembly comprises a pressing means 12 which presses against the top surface of the second positioning plate 9.

Through the arrangement of the jacking device 11 and the pressing device 12, the second positioning plate 9 can be positioned more firmly, so that the relative position of the second positioning plate 9 and the workbench 1 is fixed, and the positioning accuracy of the multi-way valve 20 is further ensured.

In some embodiments, the jacking device 11 and the pressing device 12 both adopt cylinders, so that the second positioning plate 9 has a micro (generally micron-scale) movable range, the problem of uneven cutter stress caused by errors such as position degree, verticality, straightness and the like is solved, micron-scale cutting allowance is ensured, and the cutting process is controllable.

In some embodiments, the positioning device comprises a positioning shaft 4, the second positioning plate 9 is provided with a third positioning hole, and the positioning shaft 4 is inserted into the third positioning hole before the positioning component acts and is separated from the third positioning hole after the positioning component fixes the second positioning plate 9.

Through setting up location axle 4, can carry out the alignment to the position of second locating plate 9, further guarantee the positioning accuracy of second locating plate 9.

In some embodiments, the plate type multi-way valve machining device further comprises a base 2 and a tool rest 3, wherein the tool 5 is mounted on the tool rest 3, the tool rest 3 is movably mounted on the base 2, and the positioning shaft 4 is mounted on the tool rest 3.

The tool rest 3 moves relative to the base 2 to transport the tool 5 to a position corresponding to a valve hole to be machined on the multi-way valve 20, and reaming and honing the valve hole.

The table 1 can be mounted on the base 2 to maintain the base 2 and table 1 relatively fixed so that movement of the tool holder 3 relative to the base 2 corresponds to movement of the tool holder 3 relative to the table 1. The work table 1 and the base 2 may be independently provided, and the relative positions of the work table 1 and the base 2 may be fixed.

Guides may be provided on the base 2 to guide the movement of the carriage 3 relative to the base 2. The blade holder 3 is movable in the transverse and longitudinal directions relative to the base 2.

The tool rest 3 is further provided with a driving box 6, and a driving element is arranged in the driving box 6 and used for driving the tool 5 to rotate or lift up and down relative to the tool rest 3.

The positioning shaft 4 is arranged on the tool rest 3, the positioning shaft 4 can move relative to the multi-way valve 20 by utilizing a driving device for driving the tool rest 3 and the cutter 5 to move, the alignment function is realized for the positioning of the multi-way valve 20, a special driving device for driving the positioning shaft 4 to move is not required, and the cost is saved.

In some embodiments, the plate type multiway valve machining device further comprises a brush 7, and the brush 7 is mounted on the tool holder 3. Through setting up brush 7, can in time clear up the piece that produces in the course of working, also can in time clean the burr at multiple unit valve 20 edge.

The brush 7 is arranged on the tool rest 3, the brush 7 can move relative to the multi-way valve 20 by utilizing a driving device for driving the tool rest 3 and the cutter 5 to move, a special driving device for driving the brush 7 to move is not required, and the cost is saved.

In the embodiment shown in fig. 2, four knife holders are arranged on the knife rest 3, wherein a brush 7 is arranged at the end part of one knife holder, a positioning shaft 4 is arranged at the end part of the other knife holder, and a cutter 5 is arranged at the end parts of the two middle knife holders. The processing device integrates the functions of reaming and honing, deburring and aligning.

In some embodiments, at least one side surface of the workbench 1 is open, so that loading and unloading can be facilitated, workpieces to be machined can conveniently enter and exit, and an operator can conveniently install and hoist the workpieces.

In some embodiments, the plate type multi-way valve processing device further comprises an electric cabinet, a protective cover, a cooling device, an operation panel, an electric control system and a pneumatic system, wherein the electric cabinet provides electric energy, the protective cover is used for preventing cooling liquid from splashing, and the whole appearance of the device after protection is attractive and elegant. The cooling device is used for cooling the cutter 5 and preventing the cutter 5 from being damaged by heat generated by friction between the cutter 5 and the multi-way valve 20 in the machining process. The operation panel is provided with a color display screen, the display screen can display the torque of each shaft, when the set load is exceeded, the processing device can automatically stop and give an alarm, and the cutting time and the process parameters can be accurately displayed. The electrical and pneumatic systems can control the movement of the tool holder 3, the tool 5, and the positioning assembly, among other things.

The operation of one embodiment of the plate-type multi-way valve processing device of the present invention is described below with reference to fig. 1 to 3:

firstly, hoisting equipment is used for hoisting a multi-way valve 20 to be processed and a first positioning plate 8 fixed relative to the multi-way valve 20 to the left side of an operator facing a workbench 1, a rolling bar line is arranged at the position of a stroke end on the left side, and the hoisting equipment can hoist the multi-way valve 20 and the first positioning plate 8 to the rolling bar line;

then, an operator pushes the multi-way valve 20 and the first positioning plate 8 together into the second positioning plate 9 of the workbench 1, and in the pushing process, the first positioning plate 8 moves in a limiting channel formed by the three limiting plates 10;

then, inserting a first connecting piece into a first positioning hole on the first positioning plate 8 and a second positioning hole on the second positioning plate 9 to realize the relative fixation of the multi-way valve 20, the first positioning plate 8 and the second positioning plate 9;

then, the positioning shaft 4 is moved downwards to enter a third positioning hole of the multi-way valve 20;

at this time, the four urging means 11 are operated to urge against the four side faces of the second positioning plate 9, and then the four pressing means 12 are pressed against the top faces of the four corners of the second positioning plate 9;

then, the positioning shaft 4 moves upwards, the honing tool 5 and the hairbrush 7 are replaced in sequence, and the processing is started;

and finally, after the processing is finished, blanking is carried out from a feeding position, so that the honed workpiece is transferred to a cleaning machine for cleaning.

The positive technical effects of the device for machining the plate-type multi-way valve in the above embodiments are also applicable to the method for machining the plate-type multi-way valve, and are not described herein again.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made without departing from the principles of the invention, and these modifications and equivalents are intended to be included within the scope of the claims.

Claims

1. A method for processing a chip type multi-way valve is characterized by comprising the following steps:

firstly, a plurality of valve plates are assembled to form the multi-way valve (20), and then valve holes of the multi-way valve (20) are repaired and honed.

2. The chip multi-way valve processing method according to claim 1, wherein the operation of honing the valve hole of the multi-way valve (20) comprises:

and utilizing a reaming and honing process to carry out trimming and honing on the valve hole of the multi-way valve (20).

3. The method for processing a plate-type multi-way valve according to claim 1, wherein before the trimming and honing of the valve hole of the multi-way valve (20), the method further comprises the following steps:

positioning the multiplex valve (20) to a preset position.

4. A chip multi-way valve processing apparatus based on the chip multi-way valve processing method according to any one of claims 1 to 3, comprising:

a table (1);

a tool (5) movably arranged relative to the table (1); and

a positioning device arranged on the workbench (1) and configured to position the multi-way valve (20) to be processed.

5. The plate-type multiway valve machining device according to claim 4, wherein the positioning device comprises a first positioning plate (8), the multiway valve (20) is fixed on the first positioning plate (8), and the first positioning plate (8) is arranged on the workbench (1).

6. Plate-type multiway valve machining device according to claim 5, characterized in that the positioning device comprises a second positioning plate (9) arranged on the table (1), the first positioning plate (8) being arranged on the second positioning plate (9).

7. Plate-type multiway valve machining device according to claim 6, characterized in that the surface of the second positioning plate (9) is provided with protrusions with which the first positioning plate (8) is in contact, the protrusions being configured to reduce the resistance of the first positioning plate (8) to movement with respect to the second positioning plate (9).

8. Plate-type multiway valve machining device according to claim 6, characterized in that the table (1) is provided with guiding means configured to guide the movement of the first positioning plate (8) onto the second positioning plate (9).

9. The plate type multiway valve machining device according to claim 6, wherein the positioning device comprises at least two limiting plates (10) arranged on the second positioning plate (9), and at least two limiting plates (10) form a limiting channel to limit the movement track of the first positioning plate (8).

10. Plate-type multiway valve machining device according to claim 6, wherein the first positioning plate (8) is provided with a first positioning hole, the second positioning plate (9) is provided with a second positioning hole, and the positioning device further comprises a first connector inserted into the first positioning hole and the second positioning hole.

11. Plate-type multiway valve machining device according to claim 6, characterized in that the positioning device comprises a positioning assembly for maintaining the relative position between the second positioning plate (9) and the table (1).

12. Plate-type multiway valve machining device according to claim 11, characterized in that the positioning assembly comprises a jacking device (11) that abuts against a side face of the second positioning plate (9).

13. Plate-type multiple-way valve machining device according to claim 11, characterized in that the positioning assembly comprises a pressing device (12) which presses against the top surface of the second positioning plate (9).

14. The plate type multiway valve machining device according to claim 11, wherein the positioning device comprises a positioning shaft (4), a third positioning hole is formed in the second positioning plate (9), and the positioning shaft (4) is inserted into the third positioning hole before the positioning component acts and is separated from the third positioning hole after the positioning component fixes the second positioning plate (9).

15. The disc multiway valve machining device of claim 14, further comprising a base (2) and a tool holder (3), the tool (5) being mounted on the tool holder (3), the tool holder (3) being movably mounted on the base (2), the positioning shaft (4) being mounted on the tool holder (3).

16. The plate-type multiway valve machining device according to claim 4, further comprising a base (2), a tool holder (3) and a brush (7), wherein the tool holder (3) is movably mounted on the base (2), and the tool (5) and the brush (7) are respectively mounted on the tool holder (3).