CN113334258A

CN113334258A - Closed water cutting machine tool

Info

Publication number: CN113334258A
Application number: CN202110567011.8A
Authority: CN
Inventors: 曾继跃; 沙少丞; 葛刚兵; 郭新星
Original assignee: Shanghai Lionstek Technology Co ltd
Current assignee: Roufeng Machinery Technology Jiangsu Co Ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2021-09-03

Abstract

The invention relates to a closed water cutting machine tool, which comprises a cutting platform and a machine cover covered on the cutting platform, wherein a closed space is formed between the cutting platform and the machine cover; a motion assembly for driving the cutting head to move is arranged in the closed space, the motion assembly comprises an X-direction cross beam driving shaft, two Y-direction cross beam driving shafts and a Z-direction driving shaft which are arranged in parallel, the cutting head is arranged on the X-direction cross beam driving shaft through the Z-direction driving shaft, the two Y-direction cross beam driving shafts are respectively arranged on the cutting platform, and two ends of the X-direction cross beam driving shaft are respectively arranged on the two Y-direction cross beam driving shafts; the X-direction cross beam driving shaft and the Z-direction driving shaft are sleeved with fully-closed organ sleeves; the closed space comprises a cutting area and two water-proof areas, the cutting area is divided by two water-proof walls, the Y-direction cross beam driving shaft is located in the cutting area, and the two Y-direction cross beam driving shafts are respectively located in the two water-proof areas; an abrasive supply is spaced outside of the cutting zone.

Description

Closed water cutting machine tool

Technical Field

The invention relates to the technical field of water cutting, in particular to a closed water cutting machine tool.

Background

Water cutting is also called water jet cutting, namely a high-pressure water jet cutting technology. A water jet cutting machine is a machine that performs cutting by using an abrasive water jet in which high-pressure water is mixed with an abrasive. The tubular totally-enclosed piano cover can effectively protect the moving parts (screw rod, rack, guide rail, linear motor, etc.) of the moving shaft from being damaged by water and abrasive materials. At present, a better water cutting machine tool generally adopts a cutting platform 1 similar to that shown in figure 1, although a fully-closed round tubular piano sleeve 5 is adopted for an X-direction cross beam driving shaft 4, the Y-direction cross beam driving shaft 4 with two parallel sides cannot adopt a fully-closed organ sleeve due to the structure of the cutting platform 1, and only a semi-closed organ sleeve 3 can be adopted. The semi-closed organ sleeves 3 are poorer in sealing performance than the fully-closed organ sleeves 5, are not good protection measures for precision machine tools in water and sand environments (particularly for high-speed and high-precision water cutting machines built by linear motors and marble structural members), are inconvenient to clean, and cause serious pollution to the environment because dust, water mist and noise generated in the water cutting process are diffused in surrounding spaces.

Disclosure of Invention

In order to solve the problems, the invention provides a closed water cutting machine tool, which comprises a cutting platform and a machine cover covered on the cutting platform, wherein a closed space is formed between the cutting platform and the machine cover, and at least one side of the closed space is provided with an operating door;

a movement assembly for driving the cutting head to move is arranged in the closed space, the movement assembly comprises an X-direction cross beam driving shaft, two Y-direction cross beam driving shafts and a Z-direction driving shaft which are arranged in parallel, the cutting head is arranged on the X-direction cross beam driving shaft through the Z-direction driving shaft, the two Y-direction cross beam driving shafts are respectively arranged on the cutting platform, and two ends of the X-direction cross beam driving shaft are respectively arranged on the two Y-direction cross beam driving shafts; the X-direction cross beam driving shaft and the Z-direction driving shaft are sleeved with fully-closed organ sleeves;

the closed space comprises a cutting area and two water-proof areas, the cutting area is divided by two water-proof walls, the Y-direction cross beam driving shaft is located in the cutting area, and the two Y-direction cross beam driving shafts are respectively located in the two water-proof areas; y-direction windows for two ends of the X-direction cross beam driving shaft to penetrate are respectively arranged on the two water-proof walls, and organ curtains are arranged on the Y-direction windows;

the cutting platform is provided with a through groove corresponding to the area of the cutting head, a water tank is arranged below the through groove, and the water tank is detachably connected with the cutting platform.

Preferably, the cutting head employs a pre-hybrid abrasive water jet cutting technique or a post-hybrid abrasive water jet cutting technique.

Preferably, when the cutting head adopts a post-mixed abrasive water jet cutting technology, a high-pressure water pipe mechanism is arranged in the cutting area, is positioned at the upper end of the moving assembly and comprises a coil pipe coiled by the high-pressure water pipe; one end of the high-pressure water pipe is a fixed end and is used for connecting high-pressure water; the other end is a moving end which is connected with the cutting head.

Preferably, the coil pipe is a spiral coil pipe formed by winding the high-pressure water pipe from inside to outside or from outside to inside in a circle clockwise or anticlockwise.

Preferably, the water-stop wall comprises an upper water-stop plate and a lower water-stop plate which are arranged at intervals from top to bottom, and the space between the upper water-stop plate and the lower water-stop plate is the Y-direction window;

the lower edge of the upper water-stop sheet is provided with an upper U-shaped groove with a downward opening, and the upper edge of the organ curtain is inserted into the upper U-shaped groove;

the upper edge of the lower water-stop sheet is provided with a lower U-shaped groove with an upward opening, the lower end of the organ curtain is inserted into the lower U-shaped groove, the bottom of the lower U-shaped groove is provided with a water outlet, and the water outlet is positioned on one side, close to the cutting area, of the organ curtain.

Preferably, the upper U-shaped groove is surrounded by a top plate, an upper inner baffle and an upper outer baffle, the upper inner baffle and the upper outer baffle are fixed on two sides of the lower end of the top plate, the upper inner baffle is located on the cutting area side, and the upper outer baffle is located on the water-resisting area side;

the lower U-shaped groove is formed by surrounding a bottom plate, a lower inner baffle and a lower outer baffle, the lower inner baffle and the lower outer baffle are fixed on two sides of the upper end of the bottom plate, the lower end of the bottom plate is fixedly connected with the upper edge of the lower water stop plate, the lower inner baffle is positioned on the cutting area side, and the lower outer baffle is positioned on the water stop area side; a plurality of water outlets are formed in the connecting position of the bottom plate and the lower outer baffle plate and are positioned on the side of the cutting area;

the upper inner baffle and the lower inner baffle are located on the side where the cutting area is located, and the upper outer baffle and the lower outer baffle are located on the side where the water-resisting area is located.

Preferably, the upper edge of the lower outer baffle is provided with a water receiving edge outwards, and the water receiving edge is positioned on the outer side of the upper outer baffle.

Preferably, a partition board is arranged at the middle layer of the water tank, and a plurality of through holes for communicating the upper layer with the lower layer of the water tank are formed in the partition board; the upper layer is provided with a plurality of buffer bodies, and the buffer bodies are supported on the partition plate.

Preferably, a circle of U-shaped groove is formed in the inner side of the upper edge of the water tank, a circle of guide wall is inserted in the U-shaped groove, the water tank extends to the cutting platform through the guide wall, and a sealing strip is arranged at the joint of the U-shaped groove and the guide wall.

Preferably, the cutting platform is a marble cutting platform.

Compared with the prior art, the invention has the following technical effects:

1. the Y-direction cross beam driving shaft is isolated outside the cutting area through the water-stop wall, so that the Y-direction cross beam driving shaft is prevented from being splashed onto the Y-direction cross beam driving shaft during cutting and cleaning, precision devices are prevented from being damaged, the cutting area is convenient to clean, and the phenomenon that dust, water mist and noise generated in the water cutting process permeate the surrounding space to cause serious pollution to the environment can be avoided;

2. the invention coils the high-pressure water pipe and aims to reduce the space occupied by the high-pressure water pipe. When the machine tool is closed, the high-pressure water pipe is also convenient to close;

3. the invention provides a water tank of a water cutting machine tool, which is detachably arranged in a machine tool constructed by a marble platform.

4. The invention provides a water tank of a water cutting machine tool, which can guide sewage on a cutting platform into the water tank and remove the sewage through a pumping and drainage system.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. In the drawings:

fig. 1 is a schematic structural diagram of a moving assembly of a water cutting machine according to a preferred embodiment of the present invention;

fig. 2 is a perspective view of a water cutting machine according to a preferred embodiment of the present invention;

fig. 3 is a schematic view of the internal structure of the enclosed space of the water cutting machine provided by the preferred embodiment of the invention;

fig. 4 is a schematic structural view of a water-stop wall according to a preferred embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a lower U-shaped trench according to a preferred embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an upper U-shaped trench according to a preferred embodiment of the present invention;

FIG. 7 is a front view of an abrasive material supply apparatus according to a preferred embodiment of the present invention;

fig. 8 is a front view of a second abrasive supplying apparatus according to a preferred embodiment of the present invention;

fig. 9 is a side view of a second abrasive material supply apparatus according to a preferred embodiment of the present invention;

fig. 10 is a schematic structural view of a second abrasive supplying apparatus according to a preferred embodiment of the present invention;

FIG. 11 is a schematic structural view of a coiled tube according to a preferred embodiment of the present invention;

FIG. 12 is a schematic view of the coil disposed on the bracket according to the preferred embodiment of the present invention;

FIG. 13 is a schematic view of a sink according to a preferred embodiment of the present invention;

FIG. 14 is a schematic view of the connection between the water tank and the cutting platform according to the preferred embodiment of the present invention;

fig. 15 is a partially enlarged view of the connection between the water tank and the cutting platform of the machine tool according to the preferred embodiment of the present invention.

Detailed Description

The enclosed water cutting machine provided by the present invention will be described in detail with reference to fig. 1 to 15, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments, and those skilled in the art can modify and color the enclosed water cutting machine within the scope that does not change the spirit and content of the present invention.

Referring to fig. 1 to 6, an enclosed space 7 of a water cutting machine tool, the enclosed space 7 having noise reduction, dust and mist reduction and other effects, includes a cutting platform 1 and a hood 6 disposed on the cutting platform 1, the cutting platform 1 and the hood 6 forming an enclosed space 7 therebetween;

a movement assembly for driving the cutting head 9 to move is arranged in the closed space 7, the movement assembly comprises an X-direction cross beam driving shaft 4, two Y-direction cross beam driving shafts 2 and a Z-direction driving shaft 8 which are arranged in parallel, the two Y-direction cross beam driving shafts 2 are respectively arranged on the cutting platform 1, two ends of the X-direction cross beam driving shaft 4 are respectively arranged on the two Y-direction cross beam driving shafts 2, namely the Y-direction cross beam driving shaft 2 can drive the X-direction cross beam driving shaft 4 to move along the Y axis, the cutting head 9 is arranged on the X-direction cross beam driving shaft 4 through the Z-direction driving shaft 8, the Z-direction driving shaft 8 is used for driving the cutting head 9 to move in the Z direction, and the X-direction cross beam driving shaft 4 is used for driving the Z-direction driving shaft 8 and the cutting head 9 to move in the X direction; the X-direction cross beam driving shaft 4 and the Z-direction driving shaft 8 can be sealed through a fully-closed organ sleeve. Since the bottom of the Y-beam drive shaft 2 is mounted on the cutting platform 1, the Y-beam drive shaft 2 cannot be a fully enclosed bellows, and therefore, in order to prevent water in the cutting area from splashing on the Y-beam drive shaft 2 during the cutting process and when the cutting area is cleaned, the present embodiment separates the Y-beam drive shaft 2 from the cutting area. In this embodiment, the enclosed space 7 includes a cutting area 71 and two water-stop areas 72, that is, the enclosed space 7 is divided into the cutting area 71 and the two water-stop areas 72 by providing two water-stop walls 73 in the hood 6, the cutting area 71 is an area where the cutting head, the Z-direction driving shaft and the X-direction beam driving shaft 4 are located, the two Y-direction beam driving shafts 2 are respectively located in the two water-stop areas 72, and two sides of the cutting area 71 are respectively separated from the two water-stop areas 72 by the two water-stop walls 73.

Specifically, two water-stop walls 73 are arranged in the closed space 7 at intervals, the two Y-direction beam driving shafts 2 are respectively located on the outer sides of the two water-stop walls 73 (the inner side and the outer side are opposite, in this embodiment, the inner sides of the two water-stop walls 73 correspond to the cutting area 71, the outer sides of the two water-stop walls 73 respectively correspond to the two water-stop areas 72, that is, the side where the Y-direction beam driving shaft 2 is located is the outer side of the corresponding water-stop wall 73, and the side where the cutting head is located is the inner side of the water-stop wall 73), and the two water-stop walls 73 are respectively provided with Y-direction windows 75 through which the two ends of the X-direction beam driving shaft 4 pass, and since the X-direction beam driving shaft 4 can move along the Y-direction under the driving of the Y-direction beam driving shaft 2, the Y-direction windows 75 are long-strip windows. In order to prevent water in the cutting area 71 from flowing to the Y-beam drive shaft 2 through the Y-directional window 75, therefore, the accordion curtain 74 is provided on the Y-directional window 75, and the accordion curtain 74 is provided in the Y-direction and thus can be expanded and contracted in the Y-direction in accordance with the movement of the X-beam drive shaft 4. Specifically, the accordion curtain 74 on each Y-direction window 75 includes two accordion curtain sections, which are respectively located at two sides of the end of the X-direction beam driving shaft 4, so as to better seal the Y-direction window 75. Therefore, when the cutting area 71 is cleaned, water does not pass over the diaphragm wall 73 and wet the Y-beam drive shaft 2.

In order to further seal the Y-direction beam driving shaft 2 to prevent dust in the air from entering the space of the moving part, a semi-closed organ sleeve 3 is sleeved on the Y-direction beam driving shaft 2.

In this embodiment, the hood 6 is composed of a top plate, left and right side plates, and front and rear side plates, and the left and right water-stop walls 73 are disposed in the hood 6 in parallel and spaced apart from each other, and are perpendicular to the front and rear side plates; in the hood 6, the area inside the left and right bulkheads 73 (i.e., the area between the left and right bulkheads 73) is the cutting area 71, and the X-beam drive shaft 4, the Z-beam drive shaft, and the cutting head are located in the cutting area 71; the outer area of the diaphragm wall 73 is the water stop area 72, that is, the area between the left diaphragm wall 73 and the left side plate is the water stop area 72 where the left Y-direction beam drive shaft 2 is located, and the area between the right diaphragm wall 73 and the right side plate is the water stop area 72 where the right Y-direction beam drive shaft 2 is located.

In this embodiment, openings are formed in the front side plate and the rear side plate, an operation door which can be opened and closed and is convenient for loading and unloading and cleaning and maintenance is arranged on the openings, and the operation door corresponds to the cutting area 71.

In this embodiment, during the water cutting operation, since the shape of the organ curtain 74 is dynamically changed and the organ curtain 74 is made of flexible material, static contact sealing cannot be adopted between the upper and lower edges of the movable organ curtain 74 and the water-stop wall 73, and a gap allowing relative movement is formed between the upper and lower edges of the movable organ curtain 74 and the water-stop wall 73. In order to prevent water in the cutting area 71 from entering the water stop area 72 through the upper and lower edges of the organ curtain 74, in this embodiment, the water stop wall 73 includes an upper water stop plate 731 and a lower water stop plate 732 which are arranged at an interval up and down, and an interval space between the upper water stop plate 731 and the lower water stop plate 732 is the Y-direction window 75;

referring to fig. 4 and 6, the lower edge of the upper water stop plate 731 is provided with an upper U-shaped groove 76 with a downward opening, and the upper edge of the organ curtain 74 is inserted into the upper U-shaped groove 76. In this embodiment, the upper U-shaped groove 76 is surrounded by a top plate 761, an upper inner baffle 763 and an upper outer baffle 762, the upper inner baffle 763 and the upper outer baffle 762 are fixed on two sides of the lower end of the top plate 761, and the upper end of the top plate 761 is fixedly connected to the lower edge of the upper water stop plate 731. Preferably, the upper inner barrier 763 is located on the side of the cutting area 71, and the upper inner barrier 763 is flush with the inner side of the upper water stop sheet 731 in the vertical direction; the upper outer shutter 762 is located on the side of the water blocking area 72, and the upper outer shutter 762 is located outside the upper water blocking plate 731.

Referring to fig. 4 and 5, the upper edge of the lower water stop sheet 732 is provided with a lower U-shaped groove 77 with an upward opening, the lower end of the organ curtain 74 is inserted into the lower U-shaped groove 77, a water outlet 7711 is formed at the bottom of the lower U-shaped groove 77, and the water outlet 7711 is located on the side of the organ curtain 74 away from the Y-direction beam driving shaft 2, that is, on the side of the cutting area 71. In this embodiment, the lower U-shaped groove 77 is surrounded by a bottom plate 771, a lower inner baffle 773 and a lower outer baffle 772, the lower inner baffle 773 and the lower outer baffle 772 are fixed on two sides of the upper end of the bottom plate 771, the lower end of the bottom plate 771 is fixedly connected with the upper edge of the lower water stop plate 732, and a plurality of water outlets 7711 are arranged at the connection part of the bottom plate 771 and the lower outer baffle 772. Preferably, the lower inner baffle 773 is located on the side of the cut region 71, and the lower inner baffle 773 is flush with the inner side of the lower water stop sheet 732 in the vertical direction; the lower outer baffle 772 is located at the side of the water blocking area 72, and the lower outer baffle 772 is located at the outer side of the lower water blocking plate 732.

The present embodiment adopts a labyrinth-like design, i.e. a gap is allowed between the organ curtain 74 and the diaphragm wall 73, i.e. the upper edge of the organ curtain 74 has a gap in the upper U-shaped groove 76, and the lower edge of the organ curtain 74 also has a gap in the lower U-shaped groove 77, in order to facilitate the expansion and contraction of the organ curtain 74. At the lower edge of the curtain 74, the drainage port 7711 of the lower U-shaped groove 77 drains the accumulated water in the lower U-shaped groove 77 into the inner side of the diaphragm wall 73 (the two sides of the diaphragm wall 73 are the outer side and the inner side, respectively, the outer side is the side where the diaphragm area 72 is located, and the inner side is the side where the cutting area 71 is located), so that the water cannot cross the lower edge of the curtain 74 to form a water seal. Water entering the gap between the upper edge of the organ curtain 74 and the upper U-shaped groove 76 at the upper edge of the organ curtain 74 is forced to flow down along the upper outer baffle 762 of the organ curtain 74 and is discharged from the water outlet 7711 of the lower U-shaped groove 77 after being received by the lower outer baffle 772 at the lower edge of the organ curtain 74, thereby forming a water-tight seal at the upper edge of the organ sleeve. In order to facilitate the lower outer baffle 772 to receive water above the lower outer baffle 772, a water receiving edge 774 is arranged outwards on the upper edge of the lower outer baffle 772, that is, the water receiving edge 774 of the lower outer baffle 772 is located outside the upper outer baffle 762 in the vertical direction.

In this embodiment, the Y-direction beam driving shaft 2 includes a Y-direction beam fixed to the cutting platform 1, a Y-direction slider slidably disposed on the Y-direction beam along the Y-direction, and a Y-direction linear motor drivingly connected to the Y-direction slider. The semi-closed organ sleeve 3 on the Y-direction cross beam driving shaft 2 comprises two sections, and the two sections of semi-closed organ sleeves are respectively sleeved on the Y-direction cross beam in a semi-closed mode and are positioned on two sides of the Y-direction sliding block. The Y-direction linear motor can be arranged on the Y-direction beam and also can be arranged on the cutting platform 1.

The X-direction cross beam driving shaft 4 comprises an X-direction cross beam, X-direction sliders and an X-direction linear motor, and two ends of the X-direction cross beam are respectively fixed on the two Y-direction sliders; the X-direction linear motor is arranged on the X-direction cross beam, the X-direction sliding block is arranged on the side face of the X-direction cross beam in a sliding mode along the X direction, and the X-direction linear motor is in driving connection with the X-direction sliding block. The totally-enclosed organ sleeve 5 on the X-direction cross beam driving shaft 4 comprises two sections, and the two sections of totally-enclosed organ sleeves are respectively and totally enclosed on the X-direction cross beam and are positioned at two sides of the X-direction sliding block. The X-direction linear motor is positioned in the fully-closed organ sleeve.

The Z-direction driving shaft 8 comprises a Z-direction shaft and a Z-direction linear motor, the Z-direction shaft is fixedly connected with the X-direction sliding block, and the Z-direction linear motor is fixed on the Z-direction shaft and is in driving connection with the cutting head 9. A totally-enclosed organ sleeve is sleeved on the Z-direction shaft.

In the invention, the cutting head adopts a pre-mixing type abrasive water jet cutting technology or a post-mixing type abrasive water jet cutting technology, when the pre-mixing type abrasive water jet cutting technology is adopted, namely, the abrasive and the water are mixed and then placed in a pressure container and then are conveyed to the cutting head through a high-pressure hose, and a separate abrasive feeding device is not needed when the pre-mixing type abrasive water jet cutting technology is adopted. When post-mix abrasive water jet cutting techniques are used, a separate abrasive supply is required, and the abrasive provided by the abrasive supply is mixed with high pressure water in the cutting head. Several specific examples are described in detail below.

Firstly, the abrasive material supply device is isolated at the outer side of the cutting area

Referring to fig. 7 to 9, in order to prevent water splashed during the cutting process of the cutting region 71 or washing water used to wash the cutting region 71 from entering the abrasive supplying apparatus, the abrasive supplying apparatus is isolated outside the cutting region 71.

The present invention is not limited to the specific structure of the abrasive supplying apparatus, and as an embodiment, the conventional abrasive supplying apparatus 10 shown in fig. 7 is used, that is, the abrasive supplying apparatus includes a container 103, the container 103 has a top end provided with a feeding hole 101, and a bottom end provided with a discharging hole. The abrasive (such as abrasive sand or other abrasive) is generally delivered from a pressure container by compressed air, and after the abrasive sand with compressed air enters the inlet 101 of the abrasive supply device 10, in order to avoid pressure build-up in the container 103 of the abrasive supply device 10, an exhaust port 102 for exhausting air needs to be arranged on the container 103. An abrasive valve 104 is arranged below the container 103, the abrasive valve 104 is provided with an abrasive inlet, an abrasive outlet 1041 and an air inlet 1042, the abrasive inlet is communicated with the sand outlet of the container 103, and the abrasive sand in the container 103 is transferred from the abrasive outlet 1041 to the water cutting head by the negative pressure generated by the water cutting head. Since the abrasive supply device 10 is isolated outside the cutting region 71, water splashed by the cutting region 71 during cutting or washing water when washing the cutting region 71 does not enter the air outlet 102 and the air inlet 1042.

As another example, referring to fig. 8 and 9, the abrasive supply device 10' includes an abrasive tank 105, the abrasive tank 105 is provided with a window, a feed inlet 1011 and a discharge outlet, respectively, the window is disposed on the upper side of the abrasive tank 105, the window is provided with a freely hanging door 1010, the hanging door 1010 covers the window, the upper end of the hanging door 1010 is hinged with the upper end of the window, and the window can be opened and closed through the hanging door 1010; the position of the feed port 1011 in this embodiment is not particularly limited as long as the abrasive can be fed into the abrasive tank 105 through the feed port 1011. In this embodiment, the feed port 1011 is located opposite the overhead door 1010, and the feed port 1011 is located slightly below the window. In this embodiment, after the abrasive sand conveyed from a pressure container by compressed air is introduced into the abrasive tank 105 from the inlet 1011, the freely hanging flap 1010 is pressed to automatically open the exhaust air. The flap 1010 may also be manually flipped up for manual addition of abrasive if desired.

The discharge port is arranged at the bottom end of the abrasive tank 105; an abrasive valve 106 is arranged below the abrasive tank 105, an abrasive inlet, an air inlet and an abrasive outlet are formed in the abrasive valve 106, the abrasive inlet is connected with the discharge port, and the abrasive outlet penetrates through a hose 108 into the cutting area 71 and the cutting head is connected with the cutting head.

The abrasive tank 105 is provided with a viewing window 109 for facilitating observation of whether the supply of the abrasive is normal and the stock of the abrasive from the viewing window 109.

In this embodiment, the overhead door 1010 and the viewing window 109 are disposed one above the other (with the overhead door 1010 above the viewing window 109) on the same side of the canister 105, and both facing the outside of the machine.

A water pan 107 is further arranged below the abrasive valve 106, and the water pan 107 is fixedly connected with the abrasive tank 105. The drip tray 107 is a container for receiving backwater and overflow abrasive when the cutting head is blocked or the abrasive valve 106 fails, so as to prevent the backwater and overflow abrasive from flowing to the outer wall of the machine tool to affect the appearance.

In this embodiment, in order to save space of the machine tool, the abrasive supply device 10 'is disposed in a water stop area 73, and the abrasive supply device 10' or the abrasive outlet of the abrasive supply device 10 is connected to the cutting head of the cutting area 71 through the water stop wall 73 by a hose 108. The hose 108 is sealed to the diaphragm wall 73 by a sponge or other sealing material seal 1012.

Secondly, the abrasive material supply device is arranged in the cutting area

Referring to fig. 10, the abrasive supply 10 "includes a sand tank 1013 and a housing 1014, the abrasive outlet of the sand tank 1013 being connected to a cutting head. The housing 1014 covers the sand tank 1013 to prevent water splashed during the cutting process of the cutting region 71 or washing water used in washing the cutting region 71 from entering the abrasive supply device. In the present embodiment, the sand tank 1013 is provided on the Z-direction drive shaft 8. In this embodiment, at least one side of shell 1014 is the ya keli material, and the ya keli material side is towards the lathe outside, and the condition in the sand jar is observed to the purpose be convenient for operating personnel.

Referring to fig. 11, when the cutting head employs the post-mixed abrasive water jet cutting technique, a high-pressure water pipe mechanism is disposed in the cutting area, and includes a coil 202 formed by winding a high-pressure water pipe 20; one end of the high-pressure water pipe 20 is a fixed end 201 for connecting high-pressure water; the other end is a moving end 203 connected with the cutting head, and the high-pressure water pipe 20 is used for conveying high-pressure water to the cutting head. The high pressure water pipe 20 is coiled up in order to reduce the space occupied by the high pressure water pipe 20 and facilitate the closing of the high pressure water pipe 20 when the machine tool is closed.

The invention does not specifically limit how the coil 202 is specifically coiled, and the coil can be single-strand coiled or double-strand coiled, and the coiled shape is not specifically limited, and the coil can be three-dimensional coiled or planar coiled.

In this embodiment, the coil 202 is a planar spiral coil formed by winding the high-pressure water pipe 20 clockwise or counterclockwise from inside to outside or from outside to inside.

As to whether the fixed end 201 of the high pressure water pipe 20 is located at the outer or inner ring of the spiral coil and the moving end 203 of the high pressure water pipe 20 is located at the outer or inner ring of the spiral coil 202, the embodiment is not particularly limited. In this embodiment, the fixed end 201 is preferably located at the outer circle of the spiral coil 202, and the moving end 203 is preferably located at the inner circle of the spiral coil 202.

The high pressure water pipe 20 is a stainless steel pipe or a rubber hose in order to receive high pressure water.

To prevent the helical turns of the helical coil 202 from sagging, as one example, the helical turns of the helical coil 202 are banded by a strap.

As another example, referring to fig. 12, a helical coil 202 is disposed on the carriage 30. Specifically, the fixed end 201 of the high pressure water pipe 20 is located above the bracket 30, and the moving end 203 passes through the bracket 30 to below the bracket 30.

Further, the bracket 30 comprises a fixing frame 301 and a bracket body 302, the fixing frame 301 is fixed on the machine tool, and the bracket body 302 is slidably arranged on the fixing frame 301;

the helical coil 202 is disposed on the cradle body 302.

As an embodiment, an X-direction chute 3021 is provided on the bracket body 302, the moving end 203 of the high-pressure water pipe 20 passes through the X-direction chute 3021, and the spiral coil 202 can move along the X-direction chute 3021; the fixed frame 301 is provided with a Y-guide track 3011, and the carriage body 302 is movable along the Y-guide track 3011. Specifically, a Y-direction guide rail 3011 is fixedly disposed on each of the left and right sides of the fixing frame 301, and a Y-direction guide groove slidably connected to the Y-direction guide rail 3011 is disposed on each of the left and right sides of the bracket body 302. When the cutting head works, the spiral coil 202 can move along the X-direction sliding groove 3021 along with the movement of the cutting head, and the carriage body 302 can drive the spiral coil 202 to move along the Y-direction guide track 3011.

As another embodiment, a Y-direction sliding slot is formed on the bracket body 302, the moving end 203 of the high-pressure water pipe 20 passes through the Y-direction sliding slot, and the spiral coil 202 can move along the Y-direction sliding slot; the fixing frame 301 is provided with an X-direction guide rail, and the carriage body 302 is movable along the X-direction guide rail. Specifically, an X-direction guide rail is fixedly arranged on each of the left and right sides of the fixing frame 301, and an X-direction guide groove slidably connected to the X-direction guide rail is arranged on each of the left and right sides of the bracket body 302. When the cutting head works, the spiral coil 202 can move along the Y-direction sliding groove along with the movement of the cutting head, and the carriage body 302 can drive the spiral coil 202 to move along the X-direction guide rail.

The fixed end 201 of the high-pressure water pipe 20 is fixed on the fixed frame 301, and the movable end of the high-pressure water pipe 20 is movable on the fixed frame 301.

When the coiled coil 202 does not have a sagging problem, the high pressure water pipe 20 is a stainless steel pipe, and a strap and a bracket are not required.

In this embodiment, the coiled tube can increase the amount of deformation of the high pressure water tube, reducing the resistance to the moving shaft. If the high-pressure water pipe does not have the problem of sagging (such as a stainless steel pipe), the bracket can be omitted, or the coil pipe can be bound without a binding band. In some water cutting occasions with low pressure (such as the occasions of water cutting of the pre-mixed abrasive), the high-pressure water pipe is often a rubber hose, the problem of sagging is more prominent, and the bracket is necessary.

As another embodiment, the high-pressure water pipe may also be a folding type connected by a rotary joint, that is, the high-pressure water pipe includes a plurality of water pipe sections, and the plurality of water pipe sections are connected by the rotary joint.

Cutting platform 1 adopts marble cutting platform, because current marble cutting platform has caused the basin dismouting difficulty, consequently, in this embodiment, please refer to fig. 13 to fig. 15, cutting platform 1 is last to correspond the region of cutting head is equipped with logical groove 11, the below that leads to groove 11 is equipped with basin 40, basin 40 through a plurality of fixed square tube with cutting platform 1 can dismantle the connection. In the present embodiment, the water tank 40 and the cutting platform 1 of the machine tool are not integrated, but are detachable, that is, the water tank 40 and the cutting platform 1 are designed separately. The water tank 40 is not rigidly connected with the cutting platform 1, and the bottom frame is provided with a detachable fixed square tube, so that the water tank 40 is surrounded below the cutting platform 1 to play a role in fixing the water tank 40.

In this embodiment, a partition 407 is disposed at the middle layer of the water tank 40, and a plurality of through holes 4071 for communicating the upper layer 402 and the lower layer 403 of the water tank 40 are disposed on the partition 407; the upper layer 402 is provided with a plurality of buffer bodies, and the partition 407 is used for supporting the buffer bodies. The upper layer 402 of the water tank 40 is a buffer layer, and the lower layer 403 is an abrasive precipitation layer. The material and shape of the buffer body are not particularly limited in this embodiment, the main purpose is to buffer the pressure of the jet flow (mixture of water and abrasive) to prevent the jet flow from breaking through the bottom of the sink 40, the buffer body is preferably a sphere, such as ceramic beads, the buffer body consumes energy through the rotation of the sphere and mutual friction when impacted by the jet flow, the buffer body is preferably a sphere, the size is not too large, and the size is not too small to avoid loss from the through hole, and the shape of the through hole is made into a long round hole or other non-round holes to avoid being blocked by the spherical buffer body. In this embodiment, the density of the cushion body should be greater than the density of water in order that the cushion body does not float on water when the height of water in the water tank 40 is higher than the height of the cushion body. In this embodiment, the number of the buffer bodies is not limited, but at least the partition 407 is fully filled.

The water tank 40 has a water inlet 404 and a water outlet 406 on two sides of the lower layer 403, and the lower layer 403 of the water tank 40 has a pumping and drainage system, such as a pump capable of pumping and draining water in forward and reverse directions.

The bottom of the sink 40 is provided with a caster 405 for facilitating the movement of the sink 40.

The outer wall of the water tank 40 is provided with a lug 408 for carrying and hoisting.

Since the upper edge of the water tank 40 is much lower than the cutting deck 1 to prevent water from spilling out of the water tank 40 when the cutting deck 1 of the machine tool is washed with clean water, the upper edge of the water tank 40 needs to extend to the height of the cutting deck 1 of the machine tool through the guide wall 50. The utility model discloses a cutting platform, including basin 40, cutting platform 1, U type slot 401, basin 40, U type slot 401, the inboard of going up along being equipped with round U type slot 401, it has round guide wall 50 to peg graft in the U type slot 401, basin 40 passes through guide wall 50 extends to the cutting platform 1 of lathe, U type slot 401 with the junction of guide wall 50 is equipped with the continuous sealing strip that absorbs water, like sponge sealing strip 60, the bottom of U type slot 401 is equipped with the mouth of a river 4011 that leaks. When the removable square tube of the bottom frame is removed, the sink 40 can be removed from the side of the machine tool, facilitating maintenance of the sink 40. The upper edge of the guide wall 50 is connected with the cutting platform 1 of the machine tool through an installation frame 70, the installation frame 70 is provided with a guide groove 701 used for connecting the cutting platform 1 with the guide wall 50, cleaning water for sealing a cutting space can flow through the guide groove 701 below the metal tool installation frame 70 on the cutting platform 1, the inner wall of the guide wall 50 above the water tank 40 flows through, the sponge sealing strip 60 on the upper edge of the water tank 40 is injected, and then the cleaning water flows into the water tank 40 from a water leakage port 4011 of the U-shaped groove. The deflector 50 above the sink 40 does not need to be removed when the sink 40 needs to be removed. The sponge sealing strip 60 plays roles of water isolation and vibration isolation, water in the water tank 40 cannot overflow even though the water tank overturns, and the water tank 40 does not need to be accurately aligned with the guide wall 50 above the water tank 40 under the condition that the water tank 40 is inconvenient to move.

In some applications, cutting is performed under water to reduce noise and dust, i.e., the water level is raised to submerge the workpiece under water during cutting, and lowered during assembly and disassembly of the workpiece. Since the upper edge of the water tank 40 is much lower than the cutting platform 1 and cannot submerge the workpiece, the upper edge of the water tank 40 needs to extend to the height of the cutting platform 1 of the machine tool through the guide wall 50. In this embodiment, a circle of U-shaped groove 401 is arranged on the inner side of the upper edge of the water tank 40, a circle of guide wall 50 is inserted into the groove, the water tank 40 extends to the cutting platform 1 of the machine tool through the guide wall 50, and a rubber sealing strip with better sealing performance is arranged at the joint of the groove and the guide wall 50, so that the water level can reach the height of the cutting platform 1, and meanwhile, the water outlet height of the overflow port of the water tank 40 needs to be raised to the height of the cutting platform 1 (a pipeline can be additionally arranged outside the overflow port of the water tank 40). When it is desired to lower the water level, water may be drawn into a container through the drain opening 406 in the lower layer 403 of the basin 40; when it is desired to raise the water level, water from the container may be poured into the tank 40 through the drain port 406 of the tank 40. Such a drainage system can also be used to drain solid waste materials such as abrasives from the water tank 40, by: the water is pumped out from the water outlet 406 of the water tank 40 into a container by using a water pump (a diaphragm pump, a sewage pump, a slurry pump, etc.) which can pump out and drain water in forward and reverse directions (in the embodiment, the function of pumping out and draining water in forward and reverse directions is mainly to disperse deposited waste sand by using water flow injected in reverse directions so as to facilitate discharging, and the pumping out and draining water in forward and reverse directions can be controlled by a valve to realize switching between forward and reverse directions. When the water is drained in the reverse direction, relatively clean water is drawn from the upper portion of the water level of the container and poured into the water tank 40. This cycle is repeated to discharge the solid waste such as the abrasives in the water tank 40 into the container. When the water tank 40 needs to be removed from the machine tool, the water in the water tank 40 is drained, and the guide wall 50 at the upper edge of the water tank 40 is detached.

Claims

1. A closed water cutting machine tool is characterized by comprising a cutting platform and a machine cover covered on the cutting platform, wherein a closed space is formed between the cutting platform and the machine cover, and at least one side of the closed space is provided with an operating door;

2. A closed-type water cutting machine as claimed in claim 1, characterized in that said cutting head uses a pre-mixed abrasive water jet cutting technique or a post-mixed abrasive water jet cutting technique.

3. A closed water cutting machine as defined in claim 1 wherein, when said cutting head employs post-mix abrasive water jet cutting technology, a high pressure water pipe mechanism is provided within said cutting zone, said high pressure water pipe mechanism being located at the upper end of said motion assembly and comprising a coiled pipe coiled by a high pressure water pipe; one end of the high-pressure water pipe is a fixed end and is used for connecting high-pressure water; the other end is a moving end which is connected with the cutting head.

4. A closed water cutting machine as claimed in claim 3, wherein said coiled pipe is a spiral coiled pipe formed by coiling said high pressure water pipe one turn clockwise or counterclockwise from inside to outside or from outside to inside.

5. The enclosed water cutting machine tool according to claim 1, wherein the water stop wall comprises an upper water stop plate and a lower water stop plate which are arranged at intervals up and down, and the space between the upper water stop plate and the lower water stop plate is the Y-direction window;

6. The enclosed water cutting machine according to claim 5, wherein the upper U-shaped groove is defined by a top plate, an upper inner baffle and an upper outer baffle, the upper inner baffle and the upper outer baffle are fixed on two sides of the lower end of the top plate, the upper inner baffle is located on the cutting area side, and the upper outer baffle is located on the water-stop area side;

7. A closed water cutting machine as claimed in claim 6, wherein the upper edge of the lower outer baffle is provided with a water receiving edge outwards, and the water receiving edge is positioned outside the upper outer baffle.

8. A closed water cutting machine as claimed in claim 1, wherein a partition is provided in the middle layer of the water tank, and a plurality of through holes for communicating the upper layer and the lower layer of the water tank are provided in the partition; the upper layer is provided with a plurality of buffer bodies, and the buffer bodies are supported on the partition plate.

9. A closed water cutting machine as claimed in claim 1, wherein a circle of U-shaped groove is provided on the inner side of the upper edge of the water tank, a circle of guide wall is inserted into the U-shaped groove, the water tank extends to the cutting platform through the guide wall, and a sealing strip is provided at the joint of the U-shaped groove and the guide wall.

10. A closed water cutting machine as claimed in claim 1, wherein said cutting platform is a marble cutting platform.